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Q48SQ12018PRFA Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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Q48SQ12018PRFA Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
2 / 13 page DS_Q48SQ12018_08092013 2 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted; PARAMETER NOTES and CONDITIONS Q48SQ12018 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Ambient Temperature -40 85 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 1500 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 75 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 33 34 35 Vdc Turn-Off Voltage Threshold 31 32 33 Vdc Lockout Hysteresis Voltage 2 Vdc Maximum Input Current 9 A No-Load Input Current Vin=48V, Io=0A 100 mA Off Converter Input Current Vin=48V, Io=0A 9 13 mA Inrush Current (I 2t) 1 A 2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 20 mA Input Voltage Ripple Rejection 120 Hz -30 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=0, Tc=25°C 11.88 12.00 12.12 Vdc Output Voltage Regulation Over Load Vin=48V, Io=Io,min to Io,max ±10 ±30 mV Over Line Vin=36V to 75V, Io=Io min ±10 ±30 mV Over Temperature Vin=48V, Tc=-40°C to 85°C ±60 mV Total Output Voltage Range over sample load, line and temperature 11.64 12.36 Vdc Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 100 150 mV RMS Full Load, 1µF ceramic, 10µF tantalum 25 50 mV Operating Output Current Range 0 18 A Output DC Current-Limit Inception Output Voltage 10% Low 21 23 25 A DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 100uF Al Ecap,10µF Tan & 1µF Ceramic load cap, 0.1A/µs Positive Step Change in Output Current 50% Io.max to 75% Io.max 200 mV Negative Step Change in Output Current 75% Io.max to 50% Io.max 200 mV Settling Time (within 1% Vout nominal) 300 us Turn-On Transient Start-Up Time, From On/Off Control 100 ms Start-Up Time, From Input 100 ms Maximum Output Capacitance Low ESR CAP (OSCON), 100% load; 0 5500 µF EFFICIENCY 100% Load Vin=48V 94.7 % 60% Load Vin=48V 94.9 % ISOLATION CHARACTERISTICS Input to Output 1500 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 6800 pF FEATURE CHARACTERISTICS Switching Frequency 130 kHz ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) Von/off at Ion/off=1.0mA 0 0.8 V Logic High (Module Off) Von/off at Ion/off=0.0 µA 2 50 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Von/off at Ion/off=1.0mA 0 0.8 V Logic High (Module On) Von/off at Ion/off=0.0 µA 2 50 V ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 1 mA Leakage Current (for both remote on/off logic) Logic High, Von/off=15V 50 uA Output Over-Voltage Protection Over full temp range; % of nominal Vout 115 125 140 % Output voltage trim range Pout≤Max rated power -20 10 % GENERAL SPECIFICATIONS MTBF(with heat spreader) Io=80% of Io, max; Tc=25°C;Airflow=300LFM 2 M hours Weight(without heat spreader) 50.0 grams Weight(with heat spreader) 65.5 grams Over-Temperature Shutdown (without heat spreader) Refer to Figure 21 for Hot spot location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 130 °C Over-Temperature Shutdown (with heat spreader) Refer to Figure 23 for Hot spot location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 123 °C Over-Temperature Shutdown (NTC Resistor) Refer to Figure 21 NTC resistor location 125 °C Note: Pleas e attach thermocouple on NTC resistor to test OTP function, the hot spot’s temperature is just for reference. |
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