QRS2050x025xxx 18-36V Input, 5V/25A Output Leading the Advancement of Power Conver sion 5.0V 25A Quarter Brick Converter Features High efficiency, 90% (5V/25A ) Excellent thermal performance Over-voltage, over-current, short-circuit, and over temperature protection Monotonic start-up No minimum load required Fixed frequency operation Basic Insulation nd UL 60950-1 2 recognized Options Baseplate Auto-restart after fault shutdown Negative / Positive enable logic Case ground pin Various lead lengths Part Numbering System Se ri es Input Out put ON /OFF Output Pin Electrical Options Mechanical Options Name Voltage Voltage Logic Current Feature 6 QRS 2 050 N 025 N 2 RoHS6 Compliant QRS 2: 18-36V Unit: 0.1V P: positive Unit: A Regular 0: latch up 5: open frame 050: 5.0V N: negative 025:25A K: 0.110 1: parallel 6: baseplate N: 0.145 2: auto-restart 8: baseplate with case pin R: 0.180 S: SMT* *: SMT pins are metal block pins at the same locations as the through-hole pins. The recommended diameter for pad/stencil opening and solder mask opening for these pins is 0.12. A bsolute Maximum Ratings Excessive stresses over these absolute maximum ratings can cause permanent damage to the converter. Operation should be limited to the conditions outlined under the Electrical Specification Section. Parameter Symbol Min Max Unit Input Voltage (continuous) Vi -0.5 40 Vdc Input Voltage (continuous, non-operating) Vi - 50 Vdc I/O Isolation Voltage - 1,500 Vdc Operating Ambient Temperature To -40 85* C (See Thermal Consideration section) Storage Temperature Tstg -55 125 C * Derating curves provided in this datasheet end at 85C ambient temperature. Operation above 85C ambient temperature is allowed provided the temperatures of the key components or the baseplate do not exceed the limit stated in the Thermal Considerations section. UL is a registered trademark of Underwriters Laboratory Inc. www.netpowercorp.com Datasheet QRS2050x025xxx 03-20-2014 1 QRS2050x025xxx 18-36V Input, 5V/25A Output Leading the Advancement of Power Conver sion Electrical Specifications These specifications are valid over the converters full range of input voltage, resistive load, and temperature unless noted otherwise. Input Specifications Parameter Symbol Min Typ Max Unit Input Voltage Vi 18 24 36 Vdc Input Current Ii,max - - 10 A Quiescent Input Current (Typical Vin) Ii,Qsnt - 160 200 mA Standby Input Current Ii,stdby - 4 6 mA Input Reflected-ripple Current, Peak-to-peak - - 10 - mA (5 Hz to 20 MHz, 12 H source impedance) Input Ripple Rejection (120 Hz) - 60 - dB Input Turn-on Voltage Threshold - 16 17 18 V Input Turn-off Voltage Threshold - 15 16 17 V Input Voltage ON/OFF Hysteresis - 0.5 1.5 2 V Output Specifications Parameter Symbol Min Typ Max Unit Output Voltage Set Point - 4.95 5.0 5.05 Vdc (Typical Vin Io = Io,max Ta = 25C) Output Voltage Set Point (over all conditions) - 4.85 - 5.15 Vdc Output Regulation: Line Regulation (Over full input range, Io = 1/2 of load) - - 0.05 0.2 %Vo Load Regulation (Io = Io,min to Io,max, typical Vin) - - 0.05 0.2 %Vo Temperature (Ta = -40C to 85 C) - - 15 50 mV Output Ripple and Noise Voltage RMS - - - 15 mVrms Peak-to-peak (5 Hz to 20 MHz bandwidth, Vin = 48V) 50 mVp-p External Load Capacitance - - - 10,000 F Output Current Io 0 - 25 A Output Power Po 0 125 W Startup Delay (from enabling to Vo reaching 10% of set point. 1.5 ms Typical Vin Io=Io,max, Ta = 25C) Startup Time (Vo from 10% to 90% of output set point. Io = Io,min. 2 ms Ta = 25C) Output Over Current Protection trip point Io,cli 25.8 29.0 32.5 A Output Over Voltage trip point 5.6 6.2 6.8 V Output ripple frequency - 240 260 280 kHz Dynamic Response (Typical Vin Ta = 25C Load transient 0.1A/s) Load step from 50% to 75% of full load: Peak deviation 5 %Vo Settling time (to 10% band of Vo deviation) 250 s Load step from 50% to 25% of full load Peak deviation 5 %Vo Settling time (to 10% band of Vo deviation) 250 s www.netpowercorp.com Datasheet QRS2050x025xxx 03-20-2014 2