TDK Belleta iEA User Manual

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Standard Features:

• Size – 58.4mm x 22.9 mm x 8.8

mm (2.3 in. x 0.9 in. x 0.347 in.)

• Thru-hole pins 3.68 mm (0.145”)

• High efficiency – greater than 89%

• 1500Vdc isolation voltage

• Meets basic insulation spacing

requirements

• Constant switching frequency

• Industry Standard Footprint

• Output Voltage Adjustment

• Remote on/off (positive logic)

• Remote sense

• Auto-recovering output over-

voltage protection

• Auto-recovering output over-

current protection

• Auto-recovering output short circuit

protection

• Auto-recovering over-temperature

protection

Belleta® iEA Series DC/DC Power Modules

The Belleta Series offers an industry standard eighth brick power module with true useable power. Thanks to its low component count and single-board open-frame design, it provides both better electrical and thermal performance, and lower cost than many other suppliers’ eighth brick product offerings. Belleta® modules are perfect for both next generation planning and cost reduction design environments

• UL 60950 (US and Canada), VDE

0805, CB scheme (IEC950), CE Mark (EN60950)

• ISO Certified manufacturing

facilities

• Patented Design

Optional Features:

• Remote on/off (negative logic)

• Latching output over-voltage

protection

• Short Thru-hole pins 2.79 mm

(0.110”)

• Long Thru-hole pins 5.08 mm

(0.200”)

48V Input, 25A Output

Eighth Brick

1/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

http://www.tdkinnoveta.com/

Ordering information:

Product

Identifier

TDK Innoveta

Option Table:

Feature

Product Offering:

iEA48007A120V 36-75V 12V 6.5A 78W 91%

iEA48015A050V 36-75V 5V 15A 75W 90%

iEA48020A033V 36-75V 3.3V 20A 66W 90%

iEA48025A025V 36-75V 2.5V 25A 62.5W 86%

iEA48025A018V 36-75V 1.8V 25A 45W 83%

iEA48025A015V 36-75V 1.5V 25A 37.5W 81%

iEA48025A012V 36-75V 1.2V 25A 30W 78%

Package

Size

i E A 48 020 A 033 V -

Eighthbrick

Platform

Belleta 36-75V

Input

Voltage

Output

Current/

Power

015 –15A 020 – 20A 025 – 25A

Output

Units

Amps

Main

Output

Voltage

120 – 12V 050 – 5V 033 – 3.3V 025 – 2.5V 018 – 1.8V 015 – 1.5V 012 – 1.2V

# of

Outputs

Single

Safety

Class

0 00

Positive Logic

Set

00 X X

01 X X

02 X X

03 X X

04 X X

05 X X

11 X X X

15 X X X

On/Off

Negative Logic

On/Off

0.110” Pin Length

0.200” Pin Length

0.145” Pin Length

Latching

Code Input Voltage Output Voltage

Output

Current

Maximum

Output Power

00 – Standard

OVP

Feature Set

Efficiency

3320 Matrix Drive, Suite 100 Richardson, TX 75082

Phone (877) 498-0099 Toll Free (469) 916-4747 Fax (877) 498-0143 Toll Free (214) 239-3101

support@tdkinnoveta.com

2/41

℡ (877) 498

-

0099

6

4

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Mechanical Specification:

Dimensions are in mm [in]. Unless otherwise specified tolerances are: x.x ± 0.5 [0.02], x.xx and x.xxx ± 0.25 [0.010].

1.02 [0.040] DIA Pin

2.03 [0.080] DIA Stand-Offs 6 Pins

1.57 [0.062] DIA Pin

2.59 [0.102] DIA Stand-Offs 2 Pins

Recommended Hole Pattern: (top view)

1

2

3

8

7

5

Pin Assignment:

PIN FUNCTION PIN FUNCTION

1 Vin(+) 4 Vo(-)

2 On/Off 5 Sense(-)

3 Vin(-) 6 Trim

7 Sense(+)

8 Vo(+)

Pin base material is brass with tin plating; the maximum module weight is 30.4g (1.07 oz).

3/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Absolute Maximum Ratings:

Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device.

Characteristic Min Max Unit Notes & Conditions

Continuous Input Voltage -0.5 80 Vdc

Transient Input Voltage --- 100 Vdc 100mS max.

Isolation Voltage --- 1500 Vdc

Storage Temperature -55 125 ˚C

Operating Temperature Range (Tc)

Measured at the location specified in the thermal

-40 125 ˚C

measurement figure. Maximum temperature varies with model number, output current, and module orientation – see curve in thermal performance section of the data sheet.

Input Characteristics:

Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.

Characteristic Min Typ Max Unit Notes & Conditions

Operating Input Voltage 36 48 75 Vdc

Maximum Input Current --- --- 4 A Vin = 0 to Vin,max

Turn-on Voltage --- 33 --- Vdc

Turn-off Voltage 26 30 --- Vdc

Hysteresis 0.5 3 --- Vdc

Startup Delay Time from application of input voltage

Startup Delay Time from on/off --- 35 --- mS Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,

Output Voltage Rise Time --- 50 --- mS Io=Io,max,Tc=25˚C, Vo=0.1 to 0.9*Vo,nom

Inrush Transient --- --- 0.2 A2s

Input Reflected Ripple --- 15 --- mApp See input/output ripple and noise

Input Ripple Rejection --- 55 --- dB @120Hz

Caution: The power modules are not internally fused. An external input line normal blow fuse with a maximum value of 10A is required, see the Safety Considerations section of the data sheet.

--- 35 --- mS Vo = 0 to 0.1*Vo,nom; on/off =on, Io=Io,max, Tc=25˚C

Io=Io,max,Tc=25˚C

measurements figure; BW = 20 MHz

4/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48007A120V-000 through -015: 12V, 6.5A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 11.64 12 12.36 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 11.58 12 12.42 Vdc

Efficiency --- 90.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 10 24 mV Vin=Vin,min to Vin,max

Load Regulation --- 10 24 mV Io=Io,min to Io,max

Temperature Regulation --- 60 240 mV Tc=Tc,min to Tc,max

Output Current 0.5 --- 6.5 A

Output Current Limiting Threshold --- 8.5 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 12 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 80 200

Output Ripple and Noise Voltage

--- 26 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 5 % Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 13.6 --- 15.7 V

External Load Capacitance 0 --- 2000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

60

220

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

5/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48007A120V-000 through -015: 12V, 6.5A Output

95

90

(%)

η

85

80

Efficiency,

75

70

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

95

90

(%)

η

85

80

75

Efficiency,

70

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

14

12

10

8

6

4

2

Power Dissipation (W)

0

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Efficiency vs. Input Voltage at Ta=85 degrees.

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Power Dissipation vs. Input Voltage at Ta=85 degrees

6/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

1.2255×

5

Electrical Characteristics (continued):

iEA48007A120V-000 through -015: 12V, 6.5A Output

12.34

12.24

12.14

12.04

11.94

11.84

11.74

Output Voltage (V)

11.64 0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48007A120V-001 Typical startup characteristic from on/off at full load. Ch 1 - on/off signal, Ch 2 – output voltage

iEA48007A120V-000 Typical Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

5.1 12× 100 5+( )⋅



Trim Down Resistor (Kohm)

% Change of Vout

510

− 10.2−

% Change of Vout

-5% 91.8K +5% 937K

-10% 40.8K +10% 488K

e.g. trim up 5%

Rup

iEA48007A120V-000 Calculated resistor values for output voltage adjustment

Trim Up Resistor (Kohm)



K⋅:=

iEA48007A120V-000 Typical Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS and 2200uF external load.

7/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Characteristics (continued):

iEA48007A120V-000 through -015: 12V, 6.5A Output

12.5

12

11.5

11

Output Voltage (V)

10.5

10

0 2 4 6 8 10 12

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48007A120V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

3.5

3

2.5

2

1.5

1

Input Current (A)

0.5

0

27 32 37 41 46 51 56 61 65 7 0 75

Input Voltage (V)

Io_min = 0A Io_mid = 3.3A Io_max = 6.5A

iEA48007A120V-000 Typical Input Current vs. Input Voltage Characteristics

iEA48007A120V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

14

12

10

8

6

4

Output Voltage (V)

2

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 0A Io_mid = 3.3A Io_max = 6.5A

iEA48007A120V-000 Typical Output Voltage vs. Input Voltage Characteristics

8/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Thermal Performance:

iEA48007A120V-000 through -015: 12V, 6.5A Output

7

6

5

4

3

2

1

0

25 45 65 85 105 125

NC

0.5 m/s (10 0 LFM)

1.0 m/ s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limi t

T emp er at ure ( oC )

7

6

5

4

3

2

Output Current (A)

1

0

25 45 65 85 105 125

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit

Temperature (oC)

iEA48007A120V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

iEA48007A120V-000 maximum output current vs.ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 1 to pin 3.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48007A120V-000 thermal measurement location – top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

9/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48015A050V-000 through -015: 5V, 15A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 4.92 5 5.08 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 4.85 5 5.15 Vdc

Efficiency --- 90 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 2 10 mV Vin=Vin,min to Vin,max

Load Regulation --- 1 10 mV Io=Io,min to Io,max

Temperature Regulation --- 30 75 mV Tc=Tc,min to Tc,max

Output Current 1 --- 15 A

Output Current Limiting Threshold --- 20 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 14 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 55 125

Output Ripple and Noise Voltage

--- 7 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 250 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 5.7 --- 6.7 V

External Load Capacitance 0 --- 5000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

100

200

---

mVpp

uS

mV

Measured across one 0.1 uF ceramic capacitor and a 22uF ceramic capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

10/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48015A050V-000 through -015: 5V, 15A Output

95

90

(%)

η

85

80

Efficiency,

75

70

1 2.4 3 .8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

95

90

(%)

η

85

80

75

Efficiency,

70

1 2.4 3 .8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

1 2.4 3 .8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

12

10

8

6

4

2

Power Dissipation (W)

0

1 2.4 3 .8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Efficiency vs. Input Voltage at Ta=85 degrees.

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Power Dissipation vs. Input Voltage at Ta=85 degrees

11/41

℡ (877) 498

-

0099

1.2255×

5

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics (continued):

iEA48015A050V-000 through -015: 5V, 15A Output

5.05

5.04

5.03

5.02

5.01

5

4.99

4.98

4.97

Output Voltage (V)

4.96

4.95

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48015A050V-000 Typical Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

5.1 5× 100 5+( )⋅



Trim Down Resistor (Kohm)

% Change of Vout

510

− 10.2−



% Change of Vout

-5% 91.8K +5% 325K

-10% 40.8K +10% 168K

e.g. trim up 5%

Rup

Trim Up Resistor (Kohm)

K⋅:=

iEA48015A050V-001 Typical startup characteristic from on/off at full load. Ch4 - on/off signal, Ch 1 – output voltage

iEA48015A050V-000 Typical Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS and 5000uF load.

iEA48015A050V-000 Calculated resistor values for output voltage adjustment

12/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Characteristics (continued):

iEA48015A050V-000 through -015: 5V, 15A Output

5.01

4.99

4.97

4.95

4.93

4.91

4.89

Output Voltage (V)

4.87

4.85

1 6 11 16 21 26

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48015A050V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

iEA48015A050V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

3

2.5

2

1.5

1

Input Current (A)

0.5

0

27 32 37 41 46 51 56 61 65 7 0 75

Input Voltage (V)

Io_min = 0 .8A Io_mid = 7.5A Io_max = 15.1A

iEA48015A050V-000 Typical Input Current vs. Input Voltage Characteristics

6

5

4

3

2

Output Voltage (V)

1

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 0.8A Io_mid = 7.5A Io_max = 15.1A

iEA48015A050V-000 Typical Output Voltage vs. Input Voltage Characteristics

13/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Output Current (A)

Thermal Performance:

iEA48015A050V-000 through -015: 5V, 15A Output

16

14

12

10

8

6

4

2

0

25 45 65 85 105 1 25

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit

Temperature (oC)

iEA48015A050V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48015A050V-000 thermal measurement location –

top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

14/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48020A033V-000 through -015: 3.3V, 20A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 3.25 3.3 3.35 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 3.20 3.3 3.40 Vdc

Efficiency --- 89.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 2 7 mV Vin=Vin,min to Vin,max

Load Regulation --- 3 8 mV Io=Io,min to Io,max

Temperature Regulation --- 15 60 mV Tc=Tc,min to Tc,max

Output Current 1.5 --- 20 A

Output Current Limiting Threshold --- 29 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 20 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 35 100

Output Ripple and Noise Voltage

--- 11 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 165 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 3.75 --- 4.4 V

External Load Capacitance 100 --- 5000& uF Recommend TDK part C3225X5R0J107MT

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

90

180

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

The trim range is reduced to 105% when the input voltage is below 40V.

The sense range is reduced to 5% when the input voltage is below 40V.

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

15/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48020A033V-000 through -015: 3.3V, 20A Output

95

90

(%)

η

85

80

Efficiency,

75

70

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

95

90

(%)

η

85

80

Efficiency,

75

70

1 2.9 4 .8 6.7 8.6 10.5 12.4 14. 3 16.2 18.1 20

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

12

10

8

6

4

2

Power Dissipation (W)

0

1 2.9 4 .8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Efficiency vs. Input Voltage at Ta=85 degrees.

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Power Dissipation vs. Input Voltage at Ta=85 degrees

16/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

1.225

5



Electrical Characteristics (continued):

iEA48020A033V-000 through -015: 3.3V, 20A Output

3.35

3.33

3.31

3.29

3.27

Output Voltage (V)

3.25

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48020A033V-001 Typical startup characteristic from on/off at full load. Ch2 - on/off signal, Ch 1 – output voltage

iEA48020A033V-000 Typical output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

5.1 3.3× 100 5+( )⋅



Trim Down Resistor (Kohm)

×

% Change of Vout

510

− 10.2−

% Change of Vout

-5% 91.8K +5% 176.3K

-10% 40.8K +10% 89.9K

e.g. trim up 5%

Rup

iEA48020A033V-000 Calculated resistor values for output voltage adjustment

iEA48020A033V-000 Typical output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS and 5000uF load.

Trim Up Resistor (Kohm)

K⋅:=

17/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Characteristics (continued):

iEA48020A033V-000 through -015: 3.3V, 20A Output

3.32

3.31

3.3

3.29

3.28

3.27

Output Voltage (V)

3.26

3.25

20 22 24 26 28 30 32

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48020A033V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

iEA48020A033V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

3

2.5

2

1.5

1

Input Current (A)

0.5

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 1A Io_mid = 10A Io_max = 20A

iEA48020A033V-000 Typical Input Current vs. Input Voltage Characteristics

3.5

3

2.5

2

1.5

1

Output Voltage (V)

0.5

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 1A Io_mid = 10A Io_max = 20A

iEA48020A033V-000 Typical Output Voltage vs. Input Voltage Characteristics

18/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Thermal Performance:

iEA48020A033V-000 through -015: 3.3V, 20A Output

25

20

15

Output Current (A)

10

5

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit

30 40 50 60 70 80 90 100 11 0 120 130

Temperature (C)

iEA48020A033V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

25

20

15

Output Current (A)

10

5

30 40 50 60 70 80 90 100 110 120 130

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit

Temperature (C)

iEA48020A033V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 1 to pin 3.

Best orientation airflow

iEA48020A033V-000 thermal measurement location –

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

Thermal measurement location on PWB Cu

top view

19/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48025A025V-000 through -015: 2.5V, 25A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 2.46 2.5 2.54 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 2.42 2.5 2.58 Vdc

Efficiency --- 85.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 1 5 mV Vin=Vin,min to Vin,max

Load Regulation --- 1 7 mV Io=Io,min to Io,max

Temperature Regulation --- 10 50 mV Tc=Tc,min to Tc,max

Output Current 2.0 --- 25 A

Output Current Limiting Threshold --- 31 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 20 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 35 100

Output Ripple and Noise Voltage

--- 11 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 165 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 2.7 --- 3.5 V

External Load Capacitance 0 --- 5000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

100*

200*

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

20/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48025A025V-000 through -015: 2.5V, 25A Output

95

90

(%)

η

85

80

Efficiency,

75

70

0 2.51 5.02 7.53 10 12.6 15 .1 17.6 20.1 22.6 25.1

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A025V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

2.54

2.53

2.52

2.51

2.5

2.49

2.48

Output Voltage (V)

2.47

2.46

0 2.5 5 7.5 10 1 2.5 15 17.5 20 22.5 25

Output Current (A)

14

12

10

8

6

4

2

Power Dissipation (W)

0

0 2.51 5.02 7.53 10 12.6 15.1 17.6 20.1 22.6 25.1

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A025V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

Vin = 36V Vin = 48V Vin = 75V

iEA48025A025V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48025A025V-000 Typical startup characteristic from input voltage application at full load. Ch3 - input voltage, Ch 1 – output voltage

iEA48025A025V-001 Typical startup characteristic from on/off at full load. Ch3 - on/off signal, Ch 1 – output voltage

2.55

2.5

2.45

2.4

2.35

Output Voltage (V)

2.3 15 20 25 30 35

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A025V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

21/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

1.2255×

5



Electrical Characteristics (continued):

iEA48025A025V-000 through -015: 2.5V, 25A Output

3

2.5

2

1.5

1

Input Current (A)

0.5

0

27 31.8 36.6 41.4 46.2 5 1 55.8 60.6 65.4 70.2 75

Input Voltage (V)

Io_min = 0A Io_mid = 12.6A Io_max = 25.2A

iEA48025A025V-000 Typical Input Current vs. Input Voltage Characteristics

5.1 2.5× 100 5+( )⋅



Trim Down Resistor (Kohm)

% Change of Vout

510

− 10.2−

Trim Up Resistor (Kohm)

K⋅:=

% Change of Vout

-5% 91.8K +5% 106K

-10% 40.8K +10% 53.3K

e.g. trim up 5%

Rup

3

2.5

2

1.5

1

0.5

Output Voltage (V)

0

27 32 37 4 1 46 51 56 61 65 7 0 75

Input Voltage (V)

Io_min = 0A Io_mid = 12.6A

Io_max = 25.2A

iEA48025A025V-000 Typical Output Voltage vs. Input Voltage Characteristics

iEA48025A025V-000 Calculated resistor values for output voltage adjustment

22/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Thermal Performance:

iEA48025A025V-000 through -015: 2.5V, 25A Output

30

25

20

15

10

Output Current (A)

5

0

25 45 65 85 105 125

Temperature (oC)

NC 0.5 m /s (100 LFM)

1.0 m/s (200 LFM) 2.0 m/s (400 LFM)

3.0 m/s (600 LFM) Tc, Thermal Limit

iEA48025A025V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48025A025V-000 thermal measurement location –

top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

23/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48025A018V-000 through -015: 1.8V, 25A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 1.77 1.8 1.83 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 1.74 1.8 1.86 Vdc

Efficiency --- 82.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 1 5 mV Vin=Vin,min to Vin,max

Load Regulation --- 1 7 mV Io=Io,min to Io,max

Temperature Regulation --- 10 50 mV Tc=Tc,min to Tc,max

Output Current 2.0 --- 25 A

Output Current Limiting Threshold --- 35 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 20 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 35 100

Output Ripple and Noise Voltage

--- 8 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 165 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 2.12 --- 2.58 V

External Load Capacitance 0 --- 5000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

120

130

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

24/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48025A018V-000 through -015: 1.8V, 25A Output

90

88

86

84

(%)

η

82

80

78

76

Efficiency,

74

72

70

2 4.3 6 .6 8.9 11.2 13.5 15.8 18.1 20.4 22.7 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A018V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

1.83

1.82

1.81

1.8

1.79

1.78

Output Voltage (V)

1.77

2 4 7 9 11 14 16 18 20 23 25

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

2 4.3 6 .6 8.9 11.2 13.5 15.8 18.1 20.4 22.7 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A018V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

Vin = 36V Vin = 48V Vin = 75V

iEA48025A018V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48025A018V-000 Typical startup characteristic from input voltage application at full load. Ch1 - input voltage, Ch 4 – output voltage

iEA48025A018V-001 Typical startup characteristic from on/off at full load. Ch1 - on/off signal, Ch 4 – output voltage

iEA48025A018V-000 Typical transient response. Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

25/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

1.2255×

5

Electrical Characteristics (continued):

iEA48025A018V-000 through -015: 1.8V, 25A Output

1.85

1.8

1.75

1.7

1.65

1.6

Output Voltage (V)

1.55

1.5

20 25 30 35

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A018V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

2.5

2

1.5

1

0.5

Input Current (A)

0

26 31 36 41 46 51 55 60 65 70 75

Input Voltage (V)

Io_min = 1.8A Io_mid = 12.6A

Io_max = 25.2A

iEA48025A018V-000 Typical Input Current vs. Input Voltage Characteristics

% Change of Vout

Trim Down Resistor (Kohm)

% Change of Vout

Trim Up Resistor (Kohm)

-5% 91.8K +5% 45.2K

-10% 40.8K +10% 21.2K

e.g. trim up 5%

Rup

5.1 1.8× 100 5+( )⋅



510

− 10.2−



K⋅:=

iEA48025A018V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

2

1.8

1.6

1.4

1.2 1

0.8

0.6

0.4

Output Voltage (V)

0.2 0

26 3 1 36 41 46 51 55 60 65 70 75

Input Voltage (V)

Io_min = 1.8A Io_mid = 12.6A

Io_max = 25.2A

iEA48025A018V-000 Typical Output Voltage vs. Input Voltage Characteristics

iEA48025A018V-000 Calculated resistor values for output voltage adjustment

26/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Output Current (A)

Thermal Performance:

iEA48025A018V-000 through -015: 1.8V, 25A Output

30

25

20

15

10

5

0

10 30 50 70 90 110 1 30

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

1.5 m/s (300 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM) Tc, Thermal Li mit

Temperature (oC)

iEA48025A018V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48025A018V-000 thermal measurement location – top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

27/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48025A015V-000 through -015: 1.5V, 25A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 1.47 1.5 1.53 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 1.45 1.5 1.55 Vdc

Efficiency --- 81 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 1 5 mV Vin=Vin,min to Vin,max

Load Regulation --- 1 7 mV Io=Io,min to Io,max

Temperature Regulation --- 10 50 mV Tc=Tc,min to Tc,max

Output Current 2.0 --- 25 A

Output Current Limiting Threshold --- 35 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 20 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 30 100

Output Ripple and Noise Voltage

--- 8 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 140 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 1.7 --- 2.3 V

External Load Capacitance 0 --- 5000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

120

85

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

28/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48025A015V-000 through -015: 1.5V, 25A Output

88

86

84

(%)

82

η

80

78

76

Efficiency,

74

72

70

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A015V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

1.53

1.52

1.51

1.5

1.49

Output Voltage (V)

1.48

1.47 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

0 2.5 5 7.5 10 12. 5 15 17 .5 20 2 2.5 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A015V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

Vin = 36V Vin = 48V Vin = 75V

iEA48025A015V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48025A015V-000 Typical startup characteristic from input voltage application at full load. Ch3 - input voltage, Ch 1 – output voltage

iEA48025A015V-001 Typical startup characteristic from on/off at full load. Ch3 - on/off signal, Ch 1 – output voltage

iEA48025A015V-000 Typical transient response. Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

29/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

1.2255×

5

Electrical Characteristics (continued):

iEA48025A015V-000 through -015: 1.5V, 25A Output

1.52

1.5

1.48

1.46

1.44

Output Voltage (V)

1.42

1.4 25 27 29 31 33 35 37

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A015V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

1.8

1.6

1.4

1.2

1

0.8

0.6

0.4

Input Current (A)

0.2

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 0A Io_mid = 12.6A Io_max = 25.2A

iEA48025A015V-000 Typical Input Current vs. Input Voltage Characteristics

% Change of Vout

Trim Down Resistor (Kohm)

% Change of Vout

Trim Up Resistor (Kohm)

-5% 91.8K +5% 18.9K

-10% 40.8K +10% 7.5K

e.g. trim up 5%

Rup

5.1 1.5× 100 5+( )⋅



510

− 10.2−



K⋅:=

iEA48025A015V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

1.6

1.4

1.2

1

0.8

0.6

0.4

Output Voltage (V)

0.2

0

27.0 31.8 36.6 41.4 46.2 51.0 55.8

Input Voltage (V)

Io_min = 0A Io_mid = 12.6A Io_max = 25.2A

iEA48025A015V-000 Typical Output Voltage vs. Input Voltage Characteristics

iEA48025A015V-000 Calculated resistor values for output voltage adjustment

30/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Thermal Performance:

iEA48025A015V-000 through -015: 1.5V, 25A Output

30

25

20

15

10

Output Current (A)

5

0

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM) Tc, Thermal Limit

25 45 65 85 105 125 145

Temperature (oC)

iEA48025A015V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48025A015V-000 thermal measurement location – top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

31/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Electrical Data:

iEA48025A012V-000 through -015: 1.2V, 25A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Voltage Initial Setpoint 1.182 1.2 1.218 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 1.164 1.2 1.236 Vdc

Efficiency --- 78 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 1 5 mV Vin=Vin,min to Vin,max

Load Regulation --- 1 7 mV Io=Io,min to Io,max

Temperature Regulation --- 10 50 mV Tc=Tc,min to Tc,max

Output Current 2.5 --- 25 A

Output Current Limiting Threshold --- 33 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 20 --- A Vo = 0.25V, Tc = 25˚C

Over all rated input voltage, load, and temperature conditions to end of life

At loads less than Io,min the module will continue to regulate the output voltage, but the output ripple may increase

--- 45 100

Output Ripple and Noise Voltage

--- 10 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response: Recovery Time

Transient Voltage

Output Voltage Overshoot during startup --- --- 125 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 300 --- kHz Fixed

Output Over Voltage Protection 1.5 --- 2.0 V

External Load Capacitance 0 --- 5000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK Innoveta for applications that require additional capacitance or very low esr

---

175

100

---

mVpp

uS

mV

Measured across one 1.0 uF ceramic capacitor and a 10uF tantalum capacitor – see input/output ripple measurement figure; BW = 20MHz

di/dt = 0.1A/uS, Vin=Vin,nom; load step from 50% to 75% of Io,max

32/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Electrical Characteristics:

iEA48025A012V-000 through -015: 1.2V, 25A Output

86

84

82

(%)

η

80

78

76

74

Efficiency,

72

70

1 3.4 5.8 8.2 10.6 13 15.4 17.8 20.2 22.6 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A012V-000 Typical Efficiency vs. Input Voltage at Ta=25 degrees.

1.22

1.215

1.21

1.205

1.2

1.195

1.19

Output Voltage (V)

1.185

1.18

1 3.4 5.8 8.2 10.6 13 15.4 17.8 20.2 22.6 25

Output Current (A)

12

10

8

6

4

2

Power Dissipation (W)

0

1 3.4 5.8 8.2 10.6 1 3 15.4 17.8 2 0.2 22 .6 25

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A012V-000 Typical Power Dissipation vs. Input Voltage at Ta=25 degrees

Vin = 36V Vin = 48V Vin = 75V

iEA48025A012V-000 Typical Output Voltage vs. Load Current at Ta = 25 degrees

iEA48025A012V-000 Typical startup characteristic from input voltage application at full load. Ch1 - input voltage, Ch3 – output voltage

iEA48025A012V-001 Typical startup characteristic from on/off at full load.Ch1-on/off signal, Ch3 –output voltage

iEA48025A012V-000 Typical transient response. Output voltage response to load step from 50% to 75% of full load with output current slew rate of 0.1A/uS.

33/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

5



Electrical Characteristics (continued):

iEA48025A012V-000 through -015: 1.2V, 25A Output

1.25

1.2

1.15

1.1

1.05

Output Voltage (V)

1

20 25 30 35

Output Current (A)

Vin = 36V Vin = 48V Vin = 75V

iEA48025A012V-000 Typical Output Current Limit Characteristics vs. Input Voltage at Ta=25 degrees.

iEA48025A012V-000 Typical Output Ripple at nominal input voltage and full load at Ta=25 degrees

1.6

1.4

1.2

1

0.8

0.6

0.4

Input Current (A)

0.2

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 1.3A Io_mid = 12.6A Io_max = 25.2A

iEA48025A012V-000 Typical Input Current vs. Input Voltage Characteristics

% Change of Vout

Trim Down Resistor (Kohm)

% Change of Vout

Trim Up Resistor (Kohm)

-5% 18K +5% 20K

-10% 8K +10% 10K

e.g. trim up 5%

Rup

K⋅:=

100



1.4

1.2

1

0.8

0.6

0.4

Output Voltage (V)

0.2

0

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Io_min = 1.3A Io_mi d = 12.6A Io_max = 25.2A

iEA48025A012V-000 Typical Output Voltage vs. Input Voltage Characteristics

iEA48025A012V-000 Calculated resistor values for output voltage adjustment

34/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

Thermal Performance:

iEA48025A012V-000 through -015: 1.2V, 25A Output

30

25

20

15

10

Output Current (A)

5

0

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM) Tc, Thermal Limit

25 45 65 85 105 125 145

Temperature (oC)

iEA48025A012V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

Best orientation airflow

Thermal measurement location on PWB Cu

iEA48025A012V-000 thermal measurement location –

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

top view

35/41

℡ (877) 498

-

0099

A

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Thermal Management:

An important part of the overall system design process is thermal management; thermal design must be considered at all levels to ensure good reliability and lifetime of the final system. Superior thermal design and the ability to operate in severe application environments are key elements of a robust, reliable power module.

A finite amount of heat must be dissipated from the power module to the surrounding environment. This heat is transferred by the three modes of heat transfer: convection, conduction and radiation. While all three modes of heat transfer are present in every application, convection is the dominant mode of heat transfer in most applications. However, to ensure adequate cooling and proper operation, all three modes should be considered in a final system configuration.

The open frame design of the power module provides an air path to individual components. This air path improves convection cooling to the surrounding environment, which reduces areas of heat concentration and resulting hot spots.

Test Setup: The thermal performance data of the power module is based upon measurements obtained from a wind tunnel test with the setup shown in the wind tunnel figure. This thermal test setup replicates the typical thermal environments encountered in most modern electronic systems with distributed power architectures. The electronic equipment in networking, telecom, wireless, and advanced computer systems operates in similar environments and utilizes vertically mounted PCBs or circuit cards in cabinet racks.

The power module, as shown in the figure, is mounted on a printed circuit board (PCB) and is vertically oriented within the wind tunnel. The cross section of the airflow passage is rectangular. The spacing between the top of the module and a parallel facing PCB is kept at a constant (0.5 in). The power module’s orientation with respect

to the airflow direction can have a significant impact on the module’s thermal performance.

Thermal Derating: For proper application of the power module in a given thermal environment, output current derating curves are provided as a design

AIRFLOW

Air Velocity and Ambient Temperature Measurement Location

Wind Tunnel Test Setup Figure

in millimeters and (inches).

guideline on the Thermal Performance section for the power module of interest. The module temperature should be measured in the final system configuration to ensure proper thermal management of the power module. For thermal performance verification, the module temperature should be measured at the component indicated in the thermal measurement location figure on the thermal performance page for the power module of interest. In all conditions, the power module should be operated below the maximum operating temperature shown on the derating curve. For improved design margins and enhanced system reliability, the power module may be operated at temperatures below the maximum rated operating temperature.

Module Centerline

76 (3.0)

I R F L O

W

Air Passage Centerline

Dimensions are

Adjacent PCB

12.7 (0.50)

36/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Heat transfer by convection can be enhanced by increasing the airflow rate that the power module experiences. The maximum output current of the power module is a function of ambient temperature

) and airflow rate as shown in the

(T

AMB

thermal performance figures on the thermal performance page for the power module of interest. The curves in the figures are shown for natural convection through 2 m/s (400 ft/min). The data for the natural convection condition has been collected at

0.3 m/s (60 ft/min) of airflow, which is the typical airflow generated by other heat dissipating components in many of the systems that these types of modules are used in. In the final system configurations, the airflow rate for the natural convection condition can vary due to temperature gradients from other heat dissipating components.

Operating Information:

Over-Current Protection: The power

modules have current limit protection to protect the module during output overload and short circuit conditions. During overload conditions, the power modules may protect themselves by entering a hiccup current limit mode. The modules will operate normally once the output current returns to the specified operating range. There is a typical delay of 30mS from the time an overload condition appears at the module output until the hiccup mode will occur.

Output Over-Voltage Protection: The power modules have a control circuit, independent of the primary control loop that reduces the risk of over voltage appearing at the output of the power module during a fault condition. If there is a fault in the primary regulation loop, the over voltage protection circuitry will cause the power module to enter a hiccup over-voltage mode once it detects that the output voltage has reached the level indicated on the Electrical Data section for the power module of interest. When the condition causing the over-voltage is corrected, the module will operate normally.

An optional latching over-voltage protection is available. On modules with this feature, the power module will shut down once it detects that the output voltage has reached the level indicated on the Electrical Data section for the power module of interest. The module remains off unless the input voltage is recycled.

Thermal Protection: When the power modules exceed the maximum operating temperature, the modules may turn off to safeguard the power unit against thermal damage. The module will auto restart as the unit is cooled below the over temperature threshold. On modules with the latching over-voltage protection feature, the unit may latch off during a severe over temperature condition; the module remains off unless the input voltage is recycled.

Remote On/Off: - The power modules have an internal remote on/off circuit. The user must supply an open-collector or compatible switch between the Vin(-) pin and the on/off pin. The maximum voltage generated by the power module at the on/off terminal is 15V. The maximum allowable leakage current of the switch is 50uA. The switch must be capable of maintaining a low signal Von/off < 1.2V while sinking 1mA.

The standard on/off logic is positive logic. The power module will turn on if terminal 2 is left open and will be off if terminal 2 is connected to terminal 3. If the positive logic circuit is not being used, terminal 2 should be left open.

An optional negative logic is available. The power module will turn on if terminal 2 is connected to terminal 3, and it will be off if terminal 2 is left open. If the negative logic feature is not being used, terminal 2 should be shorted to terminal 3.

37/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099









Vref

%Vo







Vin (+)

On/ Off

Vin(-)

On/Off Circuit for positive or negative logic

Output Voltage Adjustment: The output

voltage of the power module may be adjusted by using an external resistor connected between the Vout trim terminal (pin 6) and either the Sense (+) or Sense (-) terminal. If the output voltage adjustment feature is not used, pin 6 should be left open. Care should be taken to avoid injecting noise into the power module’s trim pin. A small 0.01uF capacitor between the power module’s trim pin and Sense (-) pin may help avoid this.

Vout(+)

Sense(+)

Trim

Sense(-)

Vout(-)

Rdown

Circuit to decrease output voltage

With a resistor between the trim and Sense (-) terminals, the output voltage is adjusted down. To adjust the output voltage down a percentage of Vout (%Vo) from Vo,nom, the trim resistor should be chosen according to the following equation:

For all outputs except 1.2V:

Rdown

510

10.2−

1000⋅:=

%Vo

For 1.2V output only:

Rdown

The current limit set point does not increase as the module is trimmed down, so the available output power is reduced.

Circuit to increase output voltage

With a resistor between the trim and sense (+) terminals, the output voltage is adjusted up. To adjust the output voltage up a percentage of Vout (%Vo) from Vo,nom the trim resistor should be chosen according to the following equation:

For all outputs except 1.2V:

5.1Vonom 100 %Vo+( )⋅



Rup

For 1.2V output only:

Rup

The value of Vref is found in the Electrical Data section for the power module of interest. The maximum power available from the power module is fixed. As the output voltage is trimmed up, the maximum output current must be decreased to maintain the maximum rated power of the module. As the output voltage is trimmed, the output over-voltage set point is not adjusted. Trimming the output voltage too high may cause the output over voltage protection circuit to be triggered.

100

%Vo

Vout(+)

Sense(+)

Trim

Sense(-)

Vout(-)

⋅

100

%Vo

1000⋅:=

2−

1000⋅:=

510

− 10.2−

Rup

1000⋅:=

38/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Remote Sense: The power modules feature remote sense to compensate for the effect of output distribution drops. The output voltage sense range defines the maximum voltage allowed between the output power terminals and output sense terminals, and it is found on the electrical data page for the power module of interest. If the remote sense feature is not being used, the Sense(+) terminal should be connected to the Vo(+) terminal and the Sense (-) terminal should be connected to the Vo(-) terminal.

The output voltage at the Vo(+) and Vo(-) terminals can be increased by either the remote sense or the output voltage adjustment feature. The maximum voltage increase allowed is the larger of the remote sense range or the output voltage adjustment range; it is not the sum of both.

As the output voltage increases due to the use of the remote sense, the maximum output current must be decreased for the power module to remain below its maximum power rating.

EMC Considerations: TDK Innoveta power modules are designed for use in a wide variety of systems and applications. For assistance with designing for EMC compliance, please contact TDK Innoveta technical support.

Input Impedance:

The source impedance of the power feeding the DC/DC converter module will interact with the DC/DC converter. To minimize the interaction, a 10-100uF input electrolytic capacitor should be present if the source inductance is greater than 1.5uH.

Reliability:

The power modules are designed using TDK Innoveta’s stringent design guidelines for component derating, product qualification, and design reviews. Early failures are screened out by both burn-in and an automated final test. The MTBF is calculated to be greater than 4.8M hours at full output power and Ta = 40˚C using the Telcordia SR-332 calculation method.

Improper handling or cleaning processes can adversely affect the appearance, testability, and reliability of the power modules. Contact TDK Innoveta technical support for guidance regarding proper handling, cleaning, and soldering of TDK Innoveta’s power modules.

Quality:

TDK Innoveta’s product development process incorporates advanced quality planning tools such as FMEA and Cpk analysis to ensure designs are robust and reliable. All products are assembled at ISO certified assembly plants.

39/41

℡ (877) 498

-

0099

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

Input/Output Ripple and Noise Measurements:

12uH

1 2

Battery

12

220uF

esr<0.1 100KHz

12

33uF

esr<0.7 100KHz

+

Vinput

-

Voutput

+

-

12

Cext

12

RLoad

The input reflected ripple is measured with a current probe and oscilloscope. The ripple current is the current through the 12uH inductor.

The output ripple measurement is made approximately 9 cm (3.5 in.) from the power module using an oscilloscope and BNC socket. The capacitor Cext is located about 5 cm (2 in.) from the power module; its value varies from code to code and is found on the electrical data page for the power module of interest under the ripple & noise voltage specification in the Notes & Conditions column.

Safety Considerations:

For safety agency approval of the system in which the DC-DC power module is installed, the power module must be installed in compliance with the creepage and clearance requirements of the safety agency. The isolation is basic insulation. For applications requiring basic insulation, care must be taken to maintain minimum creepage and clearance distances when routing traces near the power module.

As part of the production process, the power modules are hi-pot tested from primary and secondary at a test voltage of 1500Vdc.

To preserve maximum flexibility, the power modules are not internally fused. An external input line normal blow fuse with a maximum value of 10A is required by safety agencies. A lower value fuse can be selected based upon the maximum dc input current and maximum inrush energy of the power module.

When the supply to the DC-DC converter is less than 60Vdc, the power module meets all of the requirements for SELV. If the input voltage is a hazardous voltage that exceeds 60Vdc, the output can be considered SELV only if the following conditions are met:

1) The input source is isolated from the ac mains by reinforced insulation.

2) The input terminal pins are not accessible.

3) One pole of the input and one pole of the output are grounded or both are kept floating.

4) Single fault testing is performed on the end system to ensure that under a single fault, hazardous voltages do not appear at the module output.

Warranty:

TDK Innoveta’s comprehensive line of power solutions includes efficient, highdensity DC-DC converters. TDK Innoveta offers a three-year limited warranty. Complete warranty information is listed on our web site or is available upon request from TDK Innoveta.

Ground Plane

40/41

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

℡ (877) 498

-

0099

http://www.tdkinnoveta.com/

3320 Matrix Drive, Suite 100 Richardson, TX 75082

Phone (877) 498-0099 Toll Free (469) 916.4747 Fax (877) 498-0143 Toll Free (214) 239.3101

support@tdkinnoveta.com

Information furnished by TDK Innoveta is believed to be accurate and reliable. However, TDK Innoveta assumes no responsibility

for its use, nor for any infringement of patents or other rights of third parties, which may result from its use. No license is granted

by implication or otherwise under any patent or patent rights of TDK Innoveta. TDK Innoveta components are not designed to be

used in applications, such as life support systems, wherein failure or malfunction could result in injury or death. All sales are

subject to TDK Innoveta’s Terms and Conditions of Sale, which are available upon request. Specifications are subject to change

41/41

TDK Belleta iEA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual