DC-DC Converter QHL300 Series 300 Watts 180 - 425VDC Input Range xxx Series Regulated Single Output Industry Standard Half Brick 3kVAC Isolation Output Trim -20% to +10% Remote On/Off Overtemperature Protection -40C to +100C Operation 3 Year Warranty Dimensions: The QHL300 series offers a compact 300W DC-DC solution in an industry standard half brick QHL300: 2.4 x 2.28 x 0.5 (61.0 x 57.9 x 12.7 mm) package. This series of modules enables effective construction of distributed power architectures from AC front ends, PFC front ends and battery systems. Models & Ratings (1) Input Current Ripple & noise Efficiency at Vin Nominal Maximum Input Voltage Output Voltage Output Current Model Number Full Load at Vin pk-pk with full load Capacitive Load No Load Nominal 5V 60A 1.12A 120mV 89% 10000 F QHL300300S05 12V 25A 1.13A 150mV 88% 10000 F QHL300300S12 300V 24V 12.5A 10mA 1.11A 240mV 90% 6000 F QHL300300S24 (180-425V) 28V 10.7A 1.11A 280mV 90% 6000 F QHL300300S28 48V 6.25A 1.11A 480mV 90% 3000 F QHL300300S48 Notes 1. Measured at 300VDC nominal input. 2. Peak to peak measured at 20MHz bandwidth and i) 47F tantalum and 1F ceramic capacitor across output for 5V model ii) 10F al. and 1F ceramic capacitor across output for 48V model iii) 10F tantalum and 1F ceramic capacitor across output for 12V, 24V and 28V models 3. Recommended input capacitance of 330F required to reduce input ripple voltage at -40C operation or 150F for operation to -20C. See application notes. Mechanical Details 0.18 (4.6) 0.5 Mounting holes M3*0.5 - 4 places (12.7) Pin Connections 2 0.08 Pin Function (2.03) 2.4 1 +Vin (61.0) 2 Remote On/Off 3 4 2.0 3 -Vin (50.8) Bottom View 4 -Vout 5 1.4 5 -Sense (35.5) 6 6 Trim 0.6 7 +Sense (15.2) 2 7 8 +Vout 6 0.04 1 8 (1.02) Notes 1. All dimensions are in inches (mm) 2. Weight: 0.198 lbs (90 g) approx. 3. Tolerance: x.xx = 0.02 (x.x = 0.5) x.xxx = 0.01 (x.xx = 0.25) 1.9 (48.3) 2.28 (57.9) www.xppower.com 1DC-DC Converter QHL300 Series Input Characteristic Minimum Typical Maximum Units Notes & Conditions Input Voltage Range 180 425 VDC Input Current 1.9 A 180VDC input, 100% load 170 On Undervoltage Lockout VDC 160 Off Lockout Hysteresis 10 VDC Input Transient Voltage 500 VDC For 100ms Idle Current 10 mA No load Standby Mode 3 mA When module inhibited 2 Inrush Current 0.1 A s ETS300 132-2 Recommended Input Fuse 5 A Time delay type, see application note Input Reflected Ripple Current 50 mA pk-pk Through 10H inductor Output Characteristic Minimum Typical Maximum Units Notes & Conditions Output Voltage 5 48 VDC See Models and Ratings table Output Trim -20 +10 % See Application Note Initial Set Accuracy 1 % At full load Minimum Load 0 % No minimum load required Line Regulation 0.2 % From minimum to maximum input at full load Load Regulation 0.2 % From 0% to full load Maximum deviation, recovering to less than 1% in Transient Response 5.0 % 250s for 25% step load change. Start Up Time 300 ms Output Voltage Rise Time 10 ms Ripple & Noise mV pk-pk See models and ratings table Overload Protection 110 125 140 % Short Circuit Protection Continuous hiccup mode, with auto recovery Maximum Capacitive Load See Models and Ratings table Temperature Coefficient 0.02 %/ C Overvoltage Protection 115 125 140 % Of nominal input voltage (non latching) Output is on if remote on/off (pin 2) is open or high (3.5-75VDC) with respect to pin 4 or -Vin (Non latching clamp) Remote On/Off Output turns off if remote on/off (pin 2) is low (<1.2VDC max) with respect to pin 4 or -Vin General Characteristic Minimum Typical Maximum Units Notes & Conditions Efficiency 90 % See Models and Ratings table Isolation: Input to Output 3000 VAC 60s reinforced Isolation: Input to Case 2500 VAC 60s basic Isolation: Output to Case 500 VAC 60s functional Switching Frequency 270 300 330 kHz Fixed PWM Isolation Resistance 100 M Case Material Plastic (DAP) with aluminium base plate. UL94V-0 rated. Potting Material Epoxy UL94V-0 Pin Material Copper with nickel and matte tin plate Solder Profile 260 C With iron 450C, 5s max.1.5mm from case 10s max Water Wash Use deionized water, do not soak. Dry thoroughly 3 Power Density 109 W/in 470 5V models, MIL-HDBK-217F, +25 C GB, full load Mean Time Between Failure 590 kHrs 12V models, MIL-HDBK-217F, +25 C GB, full load 760 Others, MIL-HDBK-217F, +25 C GB, full load Weight 0.198 (90.0) lb (g) www.xppower.com 2