Delta Electronics Q48SP User Manual

FEATURES

 High efficiency: 92.5 % @12V/18A

 Size: 57.9x36.8x10.8mm (2.28”x1.45”x0.43”)

 Industry standard pin out

 Fixed frequency operation

 Fully protected: OTP, OVP, OCP, UVLO

 No minimum load required

 Wide output trim range: -20~+10%

 Remote sense

 Fast transient response

 Basic insulation and 2250V isolation

 ISO 9001, TL 9000, ISO 14001, QS9000,

 UL/cUL 60950-1 (US & Canada) recognized,

 CE mark meets 73/23/EEC and 93/68/EEC

(w/o heatspreader)

57.9x36.8x12.7mm (2.28”x1.45”x0.50”)

(with heatspreader)

OHSAS18001 certified manufacturing facility

TUV (EN60950-1) certified

directives

Delphi Series Q48SP, 216W Quarter Brick Family DC/DC Power Modules: 48V in, 12V/18A out

The Delphi Series Q48SP Quarter Brick, 48V input, 12V single output,

isolated, DC/DC converters are the latest offering from a world leader in

power systems technology and manufacturing ― Delta Electronics, Inc.

This product family provides up to 216 watts of power or up to 18A of

output current in an industry standard footprint. With creative design

technology and optimization of component placement, these converters

possess outstanding electrical and thermal performance, as well as

extremely high reliability under highly stressful operating conditions.

models are fully protected from abnormal input/output voltage, current,

and temperature conditions. The Q48SP Delphi Series converters meet all

safety requirements with basic insulation.

All

OPTIONS

 Latched over current protection

 Positive remote on/off

 Short lead lengths

APPLICATIONS

 Telecom/DataCom

 Wireless Networks

 Optical Network Equipment  Server and Data Storage

 Industrial/Test Equipment

DATASHEET DS_Q48SP12017_05302008

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, V

PARAMETER

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous Transient (100ms, non-operating) 100ms 100 Vdc

Operating Temperature Refer to Figure 22 for the measuring point -40 120 °C Storage Temperature Input/Output Isolation Voltage 2250 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage Input Under-Voltage Lockout

Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage

Maximum Input Current 100% Load, 36Vin 7 A No-Load Input Current 140 mA Off Converter Input Current 11 mA Inrush Current (I2t) 1 A2S Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 10 mA Input Voltage Ripple Rejection 120 Hz 50 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=48V, Io=Io.max, Ta=25C 11.8 12 12.2 Vdc Output Voltage Regulation

Over Load Io=Io,min to Io,max 6 24 mV Over Line Vin=36V to 75V 6 24 mV

Over Temperature Ta=-40C to135C 32 60 mV Total Output Voltage Range over sample load, line and temperature 11.6 12.4 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 150 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 50 mV Operating Output Current Range 0 18 A Output DC Current-Limit Inception Output Voltage 10% Low 19 21 24 A

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs

Positive Step Change in Output Current 50% Io,max to 75% Io,max 300 mV

Negative Step Change in Output Current 75% Io,max to 50% Io,max 300 mV

Settling Time (within 1% Vout nominal) 400 uS Turn-On Transient

Start-Up Time, From On/Off Control 8 mS

Start-Up Time, From Input 6 mS

Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 0 `1500 µF

EFFICIENCY

100% Load 92.5 %

ISOLATION CHARACTERISTICS

Input to Output 2250 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF

FEATURE CHARACTERISTICS

Switching Frequency 300 kHz ON/OFF Control, (Logic Low-Module ON)

Logic Low Von/off at Ion/off=1.0mA 0 1 V

Logic High Von/off at Ion/off=0.0 µA 2 15 V

ON/OFF Current Ion/off at Von/off=0.0V 1 mA

Leakage Current Logic High, Von/off=15V 50 uA Output Voltage Trim Range (not available on Exxx code) Across Pins 9 & 5, Pout <= max rated power -20 +10 % Output Voltage Remote Sense Range (not available on Exxx) Pout <= max rated power 0.5 V Output Over-Voltage Protection Over full temp range; % of nominal Vout 13.5 16.5 V

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; Ta=25°C 2.40 M hours Weight 45 grams Over-Temperature Shutdown Refer to Figure 22 for the measuring point 130 °C

=48Vdc, nominal Vout unless otherwise noted; mounted on board.)

NOTES and CONDITIONS Q48SP12017NRFA

Min. Typ. Max. Units

-0.5 80 Vdc

-40 105 °C

36 48 75 Vdc

33 34 36 Vdc 30 32 34 Vdc

1 2 3 Vdc

DS_Q48SP12017_05302008

ELECTRICAL CHARACTERISTICS CURVES

EFFICIENCY(%)

24681012141618

36V 48V 75V

OUTPUT CURRENT(A)

Figure 1: Efficiency vs. load current for minimum, nominal, and

maximum input voltage at 25°C.

LOSS(W)

2 4 6 8 10 12 14 16 18

36V 48V 75V

OUTPUT CURRENT(A)

Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C.

Figure 3: Turn-on transient at zero load current. Top Trace:

Vout; 5V/div; Bottom Trace: ON/OFF input: 2V/div

DS_Q48SP12017_05302008

Figure 4: Turn-on transient at load full rated current. Top Trace:

Vout: 5V/div; Bottom Trace: ON/OFF input: 2V/div

ELECTRICAL CHARACTERISTICS CURVES

Figure 5: Output voltage response to step-change in load

current (50%-75% of Io, max: di/dt =0.1A/µs). Load cap:1µF ceramic capacitor and 10uF Tantalum capacitor. Top Trace: Vout (200mV/div), Bottom Trace: Iout (5

/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module.

7.0

6.5

6.0

5.5

5.0

4.5

4.0

INPUT CURREN (A)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0 30 35 40 45 50 55 60 65 70 75

Io=17A Io=10.2A Io =1.7A

INPUT VOLTAGE (V)

Figure 6: Output voltage response to step-change in load current

(75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10uf tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div), Bottom Trace: Iout (5

/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module..

OUTPUT VOLTAGE (V) )

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

0 2 4 6 8 10 12 14 16 18

LOAD CURRENT (A)

Figure 7: Typical input characteristics at room temperature Figure 8:Output characteristics at room temperature

DS_Q48SP12017_05302008

ELECTRICAL CHARACTERISTICS CURVES

)

Figure 9: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple

Current. Note: Measured input reflected-ripple current with a simulated source Inductance (L offset possible battery impedance. Measure current as shown above.

of 12 μH. Capacitor Cs

TEST

Figure 10: Input reflected ripple current, i

source inductor at nominal input voltage and rated load current

(20 mA/div).

through a 12µH

DS_Q48SP12017_05302008

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