Datasheet DLV-3.3-6-2.5-7-D48T, DLV-3.3-6-2.5-7-D48S, DLV-3.3-6-2.5-7-D48N, DLV-3.3-6-2.5-7-D48I, DLV-2.5-7-1.8-7-D48T Datasheet (DATEL)

Output Combinations of 3.3V, 2.5V and 1.8V

30 Watt, DC/DC Converters

Dual Output

Mixed Voltage, DLV Models

Features

Figure 1. Simplifi ed Schematic

INNOVATION and EX C ELL E N C

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DATEL, Inc., Mansfi eld, MA 02048 (USA) · Tel: [phone] Fax: [phone] · Email: [e-mail] · Internet: www.datel.com

The DLV (Dual Low Voltage) Series from DATEL provides both digital I/O and

core logic supply voltages from a single 2" x 2" industry-standard pinout, plastic
package. The DLV-3.3/6-2.5/7 provides 3.3V @ 6 Amps and 2.5V @ 7 Amps, the
DLV-3.3/6-1.8/7 provides 3.3V @ 6 Amps and 1.8V @ 7 Amps, and the DLV-2.5/7-

2.5/7 provides 2.5V @ 7 Amps and 1.8V @ 7 Amps. All models are available with
input ranges of 10 to 18V (-D12), 18 to 36V (-D24) or 36 to 75V (-D48).

Plug-in compatibility with a number of converters from other leading manufactur­ers is possible because DATEL offers these 30 Watt converters with the fl exibility
to add/remove the sync (pin 3) and higher-voltage trim (pin 5). Each output is
independently regulated with its own control loop to provide ±1.0% line and load
regulation. Fully synchronous output topology allows no load operation and high
effi ciencies. Models are available with either positive or negative on/off control and
independent output voltage adjustment. "I" suffi x models offer independent, "higher-
voltage" on/off control for proper power sequencing of core and I/O voltages. Both
outputs are internally synchronized to eliminate asynchronous beat frequencies.

All models include input Pi fi ltering, input overvoltage and undervoltage shut-
down circuitry, output overvoltage protection, output short-circuit and current limit­ing protection and thermal shutdown. These devices meet IEC950, UL1950 and
EN6950 safety standards. CB reports are available on request. "-D48" models are
CE marked (meet LVD requirements).

Two independently regulated outputs:

3.3V @ 6A, 2.5V @ 7A or 1.8V @7A

30 Watts total output power

Available input voltage ranges:
10-18V, 18-36V or 36-75V

Independent output voltage adjustment

Remote On/Off Control and Sync pins

Synchronous rectifi er; No load operation

2" x 2" package; Industry standard pinout

IEC950/UL1950/EN60950 certifi ed

CE mark available (75V

IN models)

Input under and overvoltage shutdown

Output overvoltage protection

Thermal shutdown

Fully Isolated (1500Vdc)

–INPUT

PWM

CONTROLLER

OPTO

ISOLATION

REFERENCE &

ERROR AMP

SWITCH

CONTROL

V2 OUTPUT

SWITCH

CONTROL

OUTPUT
RETURN

V1 OUTPUT

V1 TRIM
(OPTION)

V2 TRIM

+INPUT

SYNC

(OPTION)

ON/OFF

CONTROL

INPUT UNDERVOLTAGE

AND OVERVOLTAGE

COMPARATORS

PWM

CONTROLLER

OPTO

ISOLATION

REFERENCE &

ERROR AMP

PRELIMINARY

30W, DUAL OUTPUT, MIXED-VOLTAGE DC/DC CONVERTERS

DLV Series

PART NUMBER STRUCTURE

V1 Nominal Output Voltage

3.3DLV 6-/ D48-

Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)

I

1 Maximum Output Current

Dual Low Voltage/
Mixed-Voltage Series

2.5 7/- T

V2 Nominal Output Voltage

I

2 Maximum Output Current

Add T, S, N and I suffi xes
as desired

Part Number Suffi xes

Standard DLV DC/DC’s provide a Trim function (Pin 9) for the lower

of the two output voltages. A Trim pin (Pin 5) for the higher voltage can

be added by indicating a "T" suffi x. A Sync pin can also be added and

is indicated by an "S" suffi x. An "N" suffi x indicates that the On/Off

Control function incorporates negative polarity logic. An "I" suffi x provides

independent on/off control (Pin 4) for the higher output voltage.

No Suffi x Pins 3 & 5 not installed, positive polarity On/Off Control

T Suffi x Pin 5 added for higher voltage Trim option

S Suffi x Pin 3 added for Sync Option

N Suffi x Negative polarity On/Off Control

I Suffi x Pin 4 independent on/off control of Pin 6 output voltage

MEC ANICAL SPECIFI CATIONS

2

I/O Connections

Pin Function P40 Function P47 Function P48

1 +Input +Input +Input

2 –Input –Input –Input

3 Sync* Sync* Sync*

4 On/Off Control On/Off Control On/Off Control

5 +3.3V Trim* +3.3V Trim* +2.5V Trim*

6 +3.3V Output +3.3V Output +2.5V Output

7 Output Return Output Return Output Return

8 +2.5V Output +1.8V Output +1.8V Output

9 +2.5V Trim +1.8V Trim +1.8V Trim

Performance Specifi cations and Ordering Guide

➀

DLV-2.5/7-1.8/7-D12

2.5 7 75 TBD ±1% ±1%
12 10-18 TBD TBD 83% C26, P48

1.8 7 75 TBD ±1% ±1%

DLV-2.5/7-1.8/7-D24

2.5 7 75 TBD ±1% ±1%
24 18-36 TBD TBD 83% C26, P48

1.8 7 75 TBD ±1% ±1%

DLV-2.5/7-1.8/7-D48

2.5 7 75 TBD ±1% ±1%
48 36-75 TBD TBD 83% C26, P48

1.8 7 75 TBD ±1% ±1%

DLV-3.3/6-1.8/7-D12

3.3 6 75 TBD ±1% ±1%
12 10-18 TBD TBD 83% C26, P47

1.8 7 75 TBD ±1% ±1%

DLV-3.3/6-1.8/7-D24

3.3 6 75 TBD ±1% ±1%
24 18-36 TBD TBD 83% C26, P47

1.8 7 75 TBD ±1% ±1%

DLV-3.3/6-1.8/7-D48

3.3 6 75 TBD ±1% ±1%
48 36-75 TBD TBD 83% C26, P47

1.8 7 75 TBD ±1% ±1%

DLV-3.3/6-2.5/7-D12

3.3 6 75 TBD ±1% ±1%
12 10-18 TBD TBD 85% C26, P40

2.5 7 75 TBD ±1% ±1%

DLV-3.3/6-2.5/7-D24

3.3 6 75 TBD ±1% ±1%
24 18-36 TBD TBD 85% C26, P40

2.5 7 75 TBD ±1% ±1%

DLV-3.3/6-2.5/7-D48

3.3 6 75 TBD ±1% ±1%
48 36-75 TBD TBD 85% C26, P40

2.5 7 75 TBD ±1% ±1%

➀ Typical at TA = +25°C under nominal line voltage and "balanced," full-power

conditions: 3.3V @ 4.5A/2.5V @ 6A; 3.3V @ 5.2A/1.8V @ 7A; 2.5V @ 7A/1.8V @ 7A.
➁ Any combination of rated I

OUT current, not to exceed 30 Watts of output power.

(See derating graphs.)

Output

Input

R/N (mVp-p) ➂ Regulation (Max.) Effi ciency

Packag e

VOUT IOUT ➁ VIN Nom. Range IIN ➄ (Case,
Model (Volts) (Amps) Typ. Max. Line Load ➃ (Volts) (Volts) (mA) Min. Typ. Pinout)

BOTTOM VIEW

9

8

5

6

7

1

2

3
4

2.00

(50.08)

1.400
(35.56)

1.200
(30.48)

3 EQ. SP. @

0.400 (10.16)

1.800
(45.72)

0.10
(2.54)

0.10
(2.54)

0.40

(10.16)

0.600

(15.24)

3 EQ. SP. @

0.200 (5.08)

PLASTIC CASE

0.040 ±0.001 DIA.
(1.016 ±0.025)

0.20 MIN
(5.08)

2.00

(50.08)

0.48

(12.19)

STANDOFF

0.020 (0.51)

Case C26

* Optional pins

➂ Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specicfi ed with
TBD ceramic capacitors.

➃ Tested from no load to 100% load (other output at no load).
➄ Nominal line voltage, no load/balanced full-power condition.

S N I

See page 5 for ordering information.

DLV Models

30W, DUAL OUTPUT, MIXED-VOLTAGE DC/DC CONVERTERS

Performance/Functional Specifi cations

Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. ➀

Input

Input Voltage Range:

D12 Models 10-18 Volts (12V nominal)

D24 Models 18-36 Volts (24V nominal)

D48 Models 36-75 Volts (48V nominal)

Overvoltage Shutdown:

D12 Models 19-23 Volts (21V nominal)

D24 Models 37-42 Volts (40V nominal)

D48 Models 77-81 Volts (79V nominal)

Start-Up Threshold:

D12 Models 9-10 Volts (9.3V nominal)

D24 Models 16.5-18 Volts (17V nominal)

D48 Models 34.5-36 Volts (35V nominal)

Undervoltage Shutdown:

D12 Models 8.5-9.6 Volts (9.3V nominal)

D24 Models 16-17 Volts (16.5V nominal)

D48 Models 33-35 Volts (34V nominal)

Input Current:

Normal Operating Conditions See Ordering Guide

Standby Mode:

Off, OV, UV, Thermal Shutdown 10mA typical

Input Refl ected Ripple Current:

Source Impedance

D12 Models TBD

D24 Models TBD

D48 Models TBD

Internal Input Filter Type Pi (0.039µF - 2.2µH - TBD)

Reverse-Polarity Protection:

D12 Models TBD minute duration, 6A maximum

D24 Models TBD minute duration, 4A maximum

D48 Models TBD minute duration, 2A maximum

On/Off Control (Pin 4):

➂ ➃ ➅

D12, D24, D48 Models On = open or TBD to +V

IN,

I

IN = TBDµA @ TBDV

Off = 0-0.8V, I

IN = TBD @ 0V

D12N, D24N, D48N Models On = 0-0.8V, I

IN = TBD @ 0V

Off = open or TBD to +5.5V

I

IN = TBDµA @ TBDV

Sync (Option, Pin 3): ➂ ➃

Input Threshold (Rising Edge Active) 1-2.7 Volts

Input Voltage Low 0-0.9 Volts

Input Voltage High 2.8-5 Volts
Input Resistance 35kΩ minimum

Output High Voltage (100µA load) 3.5-4.8 Volts

Output Drive Current 35mA

Input/Output Pulse Width 160-360nsec

Output

VOUT Accuracy

2.5V/1.8V Models 1.5% / 2% maximum

3.3V/1.8V Models 1% / 2% maximum

3.3V/2.5V Models 1% / 1.5% maximum

Minimum Loading Per Specifi cation No load

Ripple/Noise (20MHz BW) See Ordering Guide

Line/Load Regulation See Ordering Guide

Effi ciency See Ordering Guide/Effi ciency Cur ves

Trim Range

➇ ±5% each output

Isolation Voltage:

Input-to-Output 1500Vdc

Isolation Capacitance 470pF

Isolation Resistance 100MΩ

Output (continued)

Isolation Resistance 100MΩ

Current Limit Inception:

2.5/1.8V Models

2.5V @ 98%V

OUT TBD Amps

1.8V @ 98%V

OUT TBD Amps

3.3/1.8V Models

3.3V @ 98.5%V

OUT TBD Amps

1.8V @ 98%V

OUT TBD Amps

3.3V/2.5V Models

3.3V @ 98.5%V

OUT TBD Amps

2.5V @ 98%V

OUT TBD Amps

Short Circuit Current:

3.3V Outputs TBD Amps average, continuous

2.5V Outputs TBD Amps average, continuous

1.8V Outputs TBD Amps average, continuous

Overvoltage Protection: Comparator, magnetic feedback

2.5/1.8V Models TBD/TBD

3.3/1.8V Models TBD/TBD

3.3/2.5V Models TBD/TBD

Maximum Capacitive Loading

2.5/1.8V Models TBD/TBDµF

3.3/1.8V Models TBD/TBDµF

3.3/2.5V Models TBD/TBDµF

Temperature Coeffi cient ±0.02% per °C

Dynamic Characteristics

Dynamic Load Response:

2.5/1.8V Models

2.5V (50-100% step to 1.5%V

OUT) TBD µsec maximum

1.8V (50-100% step to 2%V

OUT) TBD µsec maximum

3.3/1.8V Models

3.3V (50-100% step to 1%V

OUT) TBD µsec maximum

1.8V (50-100% step to 2%V

OUT) TBD µsec maximum

3.3V/2.5V Models

3.3V (50-100% step to 1%V

OUT) TBD µsec maximum

2.5V (50-100% step to 1.5%V

OUT) TBD µsec maximum

Start-Up Time:

V

IN to VOUT TBD

On/Off to V

OUT TBD

Switching Frequency 225kHz (±TBD kHz)

Environmental

MTBF

D12 Models TBD hours

D24 Models TBD hours

D48 Models TBD hours

Operating Temperature (Ambient):

Without Derating:

2.5/1.8V Models

D12 Model TBD

D24 Model TBD

D48 Model TBD

3.3/1.8V Models

D12 Model TBD

D24 Model TBD

D48 Model TBD

3.3V/2.5V Models

D12 Model TBD

D24 Model TBD

D48 Model TBD

With Derating To +100°C (See Derating Curves)

Case Temperature:

Maximum Operational +100°C

For Thermal Shutdown TBD minimum, TBD maximum

Storage Temperature –40 to +120°C

3

30W, DUAL OUTPUT, MIXED-VOLTAGE DC/DC CONVERTERS

DLV Series

Physical

Dimensions 2" x 2" x 0.5" (50.8 x 50.8 x 12.7mm)

Case Material Diallyl phthalate, UL94V-0 rated

Pin Material Brass, solder coated

Weight: TBD

Primary to Secondary Insulation Level Operational

Absolute Maximum Ratings

Input Voltage:

Continuous: D12 Models 23 Volts
D2A Models 42 Volts
D48 Models 81 Volts
Transient (100msec): D12 Models 25 Volts
D24 Models 50 Volts
D48 Models 100 Volts

Input Reverse-Polarity Protection

➁ Input Current must be limited. TBD

minute duration. Fusing recommended.
D12A Models 6 Amps
D24A Models 4 Amps
D48A Models 2 Amps

Output Current

➁ Current limited. Devices can withstand

an indefi nite output short circuit.

On/Off Control (Pin 4) Max. Voltages
Referenced to –Input (pin 2)

No Suffi x +VIN

"N" Suffi x +8 Volts

Sync Control (Pin 3) Max. Voltages

"S" Suffi x +5.7 Volts

Storage Temperature –40 to +120°C

Lead Temperature (Soldering, 10 sec.) +300°C

These are stress ratings. Exposure of devices to any of these conditions may adversely

affect long-term reliability. Proper operation under conditions other than those listed in the

Performance/Functional Specifi cations Table is not implied, nor recommended.

4

Figure 2. Trim Connections Using A Trim Pot

Figure 3. Trim Connections To Decrease Output Voltages Using Fixed Resistors

➀ All models are specifi ed with external TBD ceramic output capacitors.
➁ See Technical Notes/Graphs for details.
➂ Devices may be order with opposite polarity. Sync pin available with "S" suffi x. See Part

Number Suffi xes and Technical Notes for details.
➃ Applying a voltage to On/Off Control (pin 4) or the Sync (pin 3) when no input power is

applied to the converter may cause permanent damage.
➄ Output noise may be further reduced with the installation of additional external output

capacitors. See Technical Notes.
➅ On/Off control is designed to be driven with open collector or by appropriate voltage

levels. Voltages must be referenced to the –Input (pin 2).

➆ Demonstrated MTBF available on request.
➇ Trim function for the higher of two voltages available with "T" suffi x. See Part

Number Suffi xes and Technical Notes for details.

+3.3V
LOAD

–INPUT

ON/OFF
CONTROL

+INPUT

+3.3V OUTPUT

OUTPUT
RETURN

+2.5V OUTPUT

+2.5V TRIM

7

8

1

4

9

5

6

3

2

+2.5V
LOAD

20kΩ

5-22

TURNS

20kΩ

5-22

TURNS

+3.3V TRIM *

SYNC *

* OPTIONAL PIN

+3.3V
LOAD

–INPUT

ON/OFF
CONTROL

+INPUT

+3.3V OUTPUT

OUTPUT
RETURN

+2.5V OUTPUT

+2.5V TRIM

7

8

1

4

9

5

6

3

2

+2.5V
LOAD

RTRIM DOWN

RTRIM DOWN

+3.3V TRIM *

SYNC *

* OPTIONAL PIN

TECHNICAL NOTES

Trimming Output Voltages

These DLV converters have a trim capability (pins 9 & 5) that allow users

to independently adjust the output voltages ±5%. (Note: pin 5 is an option,

see ordering information.) Adjustments to the output voltages can be accom-

plished via a trim pot, Figure 2, or a single fi xed resistor as shown in Figures

3 and 4. A single fi xed resistor can increase or decrease the output voltage

depending on its connection. Fixed resistors should have absolute TCR's less

than 100ppm/°C to minimize sensitivity to changes in temperature.

A single resistor connected from the Trim pin 9 to +Output (pin 8), see Figure

3, will decrease the lower output voltage. A resistor connected from Trim pin 9

to Output Return (pin 7) will increase the lower output voltage. See Figure 4.

Similarly, the higher output voltage can be adjusted using a single resistor

connected from the Trim (pin 5) to +Output (pin 6) or to Output Return (pin

7). See Figures 3 and 4.

–28.7

DOWN

RT (kΩ) =

3.3 – V

O

3.48(VO – 1.577)

L
N

L

N

–19.7

DOWN

RT (kΩ) =

2.5 – V

O

2.41(VO – 1.18)

L
N

L

N

2.5 Volt Trim Down

–14.17

DOWN

RT (kΩ) =

1.8 – V

O

1.73(VO – 0.86)

L
N

L

N

1.8 Volt Trim Down

3.3 Volt Trim Down

DLV Models

30W, DUAL OUTPUT, MIXED-VOLTAGE DC/DC CONVERTERS

Higher Voltage Control of "Higher" Independent On/Off
Trim Sync Function Positive/Negative Output Voltage Control, Both Outputs
(Pin 5 Installed) (Pin 3 Installed) Logic (Via Pin 4) (Via Pin 4) Suffi x

Positive

No Yes No Suffi x

No

Yes No I

Negative

No Yes N

No

Yes No NI

Positive

No Yes S

Ye s

Yes No SI

Negative

No Yes SN

Yes No SNI

Positive

No Yes T

No

Yes No TI

Negative

No Yes TN

Ye s

Yes No TNI

Positive

No Yes TS

Ye s

Yes No TSI

Negative

No Yes TSN

Yes No TSNI

Ordering Information

DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do
not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

DATEL (UK) LTD. Tadley, England Tel: [phone]

DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: [phone]
DATEL GmbH München, Germany Tel: [phone]
DATEL KK Tokyo, Japan Tel: [phone], Osaka Tel: [phone]

DATEL, Inc. 11 Cabot Boulevard, Mansfi eld, MA 02048-1151
Tel: [phone] [phone] Fax: [phone]
Internet: www.datel.com Email: [e-mail]

ISO 9001 REGISTERED

INNOVATION and EX C ELL E N C

E

®

®

DS-0490 12/00

Figure 4. Trim Connections To Increase Output Voltages Using Fixed Resistors

+3.3V
LOAD

+3.3V TRIM *

–INPUT

SYNC *

ON/OFF
CONTROL

+INPUT

* OPTIONAL PIN

+3.3V OUTPUT

OUTPUT

RETURN

+2.5V OUTPUT

+2.5V TRIM

7

8

1

4

9

5

6

3

2

+2.5V
LOAD

RTRIM UP

RTRIM UP

PART NUMBER STRUCTURE

V1 Nominal Output Voltage

3.3DLV 6-/ D48-

Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)

I

1 Maximum Output Current

Dual Low Voltage/
Mixed-Voltage Series

2.5 7/- T

V2 Nominal Output Voltage

I2 Maximum Output Current

Add T, S, N and I suffi xes
as desired

S N I

Part Number Suffi xes

Standard DLV DC/DC’s provide a Trim function (Pin 9) for the lower

of the two output voltages. A Trim pin (Pin 5) for the higher voltage can

be added by indicating a "T" suffi x. A Sync pin can also be added and

is indicated by an "S" suffi x. An "N" suffi x indicates that the On/Off

Control function incorporates negative polarity logic. An "I" suffi x provides

independent on/off control (Pin 4) for the higher output voltage.

No Suffi x Pins 3 & 5 not installed, positive polarity On/Off Control

T Suffi x Pin 5 added for higher voltage Trim option

S Suffi x Pin 3 added for Sync Option

N Suffi x Negative polarity On/Off Control

I Suffi x Pin 4 independent on/off control of Pin 6 output voltage

Note: Resistor values are in kΩ. Accuracy

of adjustment is subject to

tolerances of resistors and fac-

tory-adjusted output accuracy.

V

O = desired output voltage.

5

–28.7

UP

RT (kΩ) =

V

O – 3.3

5.88

L
N

L

N

–19.7

UP

RT (kΩ) =

V

O – 2.5

2.84

L
N

L

N

2.5 Volt Trim Up

–14.17

UP

RT (kΩ) =

V

O – 1.8

1.49

L
N

L

N

1.8 Volt Trim Up

3.3 Volt Trim Up