DC-DC Power Supplies QSB400 400 Watts Up to 89% efficiency 4:1 input range Industry standard full brick package -40 C to +100 C operating temperature Baseplate-cooled 1500VDC isolation Remote on/off & remote sense 3 year warranty This specification describes the features and functions of QSB400 series of isolated Dimensions: DC-DC Converters. These are highly efficient, reliable and compact, high power QSB400: density, single output baseplate cooled DC/DC converters packaged in an industry 4.6 x 2.4 x 0.5(116.8 x 61.0 x 12.7 mm) standard full brick format. Models & Ratings Input Current (2 (1) Input Voltage Output Voltage Output Current Efficiency Max Capacitive Load Model Number No Load Full Load 5.0 V 80.0 A 600 mA 19.05 A 87.5% 10000 F QSB40024S05 12.0 V 33.3 A 120 mA 19.36 A 86.0% 10000 F QSB40024S12 9-36 V 24.0 V 16.6 A 120 mA 19.19 A 87.0% 4700 F QSB40024S24 28.0 V 14.3 A 120 mA 19.19 A 87.0% 4700 F QSB40024S28 48.0 V 8.30 A 120 mA 19.19 A 86.5% 2200 F QSB40024S48 5.0 V 80.0 A 300 mA 9.36 A 89.0% 10000 F QSB40048S05 12.0 V 33.3 A 60 mA 9.41 A 88.5% 10000 F QSB40048S12 18-75 V 24.0 V 16.6 A 60 mA 9.28 A 90.0% 4700 F QSB40048S24 28.0 V 14.3 A 60 mA 9.27 A 90.0% 4700 F QSB40048S28 48.0 V 8.30 60 mA 9.27 A 89.5% 2200 F QSB40048S48 Notes 1. Add suffix P to the model number to receive the unit with positive logic. Module on: <1 mA or open circuit, module off: 1-10 mA 2. Minimum of 330 F capacitance required on output to mantain regulation. Except S05 models which require 680 F Mechanical Details 4.10 (104.1) 8- 0.04 PIN CONNECTIONS (1.0) Pin Function 3.35 (85.1) 8- 0.08 1 -Vin (2.0) 2 +Vin 16 15 14 13 12 11 3 -On/Off 4 +On/Off 5-7 +Vout 1 0.15 (3.81) 1.40 8-10 -Vout (35.6) 11 -Sense 2 BOTTOM VIEW 2.40 2.00 1.70 12 +Sense (61.0) (50.8) (43.2) 13 Trim 3 2.25 14 Parallel 1.30 4 (57.2) (33.0) 15 DC OK 4 x Mounting Holes, 3.5 mm 16 Aux Notes 0.20 (5.1) 0.90 (22.9) 4.20 (106.7) 0.75 (19.1) 1. All dimensions are in inches (mm) 2. Weight: 0.485 lbs (220 g) approx 3. Tolerances: X.XX = 0.02 (X.X = 0.5) 0.22 X.XXX = 0.01 (X.XX = 0.25) (5.5) 4. Small or large pin diameter: 0.004 (0.1) 4.60 (116.8) 5. Small pin pitch 0.15 (3.81) 0.50 (12.7) www.xppower.com 1 0.40 (10.2) 0.90 (22.9) 0.50 (12.7) 0.20 (5.1)DC-DC Power Supplies QSB400 Input Characteristic Minimum Typical Maximum Units Notes & Conditions Input Voltage 9/18 36/75 VDC 24 V/48 V Input Current See Models and Ratings table Idle Current 50 mA When inhibited Input Reverse Voltage Protection None Input Filter Pi Network Turn On: 8.5 Turn Off: 7.5 24 Vin Undervoltage Lockout V Turn On: 17.0 Turn Off: 15.5 48 Vin Turn On: 40.0 Turn Off: 42.0 24 Vin Overvoltage Lockout V Turn On: 80.0 Turn Off: 83.0 48 Vin Output Characteristic Minimum Typical Maximum Units Notes & Conditions Output Voltage Trim -20 +10 % Of nominal output, see Application Notes Initial Set Accuracy 1.5 % Minimum Load No minimum load Start Up Time 120 ms Line Regulation 0.2 % Measured from high line to low line Load Regulation 0.5 % Measured from 0-100% load Deviation, recovery to within 1% in 500 s, Transient Response 5 % 25% step load change 100 mV pk-pk 5 V models. Ripple & Noise 1 % pk-pk Other models 1% pk-pk, 20 MHz bandwith (see note 1) Overvoltage Protection 115 140 % Overload Protection 110 150 % Nominal output Short Circuit Protection Continuous, constant current Thermal Shutdown Case temperature 110 C typical Temperature Coefficient 0.03 %/C Notes 1. Output Ripple and Noise measured with 10 F tantalum and 1 F ceramic capacitor across output. General Characteristic Minimum Typical Maximum Units Notes & Conditions Efficiency 86 90 % See Models and Ratings table 1500 VDC Isolation: Input to Output Input to Case 1500 VDC Output to Case 1500 VDC Isolation Resistance 10 M Isolation Capacitance 4000 pF Switching Frequency 230 kHz Case Material Plastic (DAP) UL94V-0 with aluminium base plate Potting Material Epoxy UL94V-0 Pin Material Copper with nickel and matte tin plating Solder Profile Peak temperature 260 C, above 250 C for 3-6 s. With iron 450C for < 5s 3 Power Density 79 W/in Mean Time Between Failure 340 kHrs MIL-HDBK-217F at 25 C GB Weight 0.485 (220) lb (g) Environmental Characteristic Minimum Typical Maximum Units Notes & Conditions Operating Base Plate Temperature -40 +100 C Storage Temperature -55 +105 C Sawtooth wave for 10ms, 3 pulses per face, all 6 faces Shock 75 g/pk tested on all 3 axes Humidity 90 %RH Non-condensing Cooling Baseplate-cooled www.xppower.com 2