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Q48DQ3R315NRFA Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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Q48DQ3R315NRFA Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
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2 / 14 page  DS_Q48DW3R312_07202006 2 TECHNICAL SPECIFICATIONS (T A=25°C, airflow rate=200 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DW3R312NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) <100ms 100 Vdc Operating Temperature Refer to Figure 27 for measuring point -40 118 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage <1 minute 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 1 2 3 Vdc Maximum Input Current 1.8 A No-Load Input Current 40 60 mA Off Converter Input Current 5 10 mA Inrush Current(I 2t) 0.015 A 2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 5 10 mA Input Voltage Ripple Rejection 120Hz 66 dB OUTPUT CHARACTERISTICS Vout 1 1.200 1.240 1.260 Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25℃ Vout 2 3.300 3.330 3.360 Vdc Output Voltage Regulation Io1=Io, min to Io, max, Io2=0A Vout 1 Over Load Io2=Io, min to Io, max, Io1=0A Vout 2 ±5 ±15 mV Vout 1 Over Line Vin=36V to 75V,Io1=Io2=full load Vout 2 ±3 ±10 mV Cross Regulation Worse Case ±5 ±15 mV Over Temperature Tc=-40℃ to 110℃ ±15 ±50 mV Total Output Voltage Range Over sample load, line and temperature ±30 ±85 mV Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Vout 1 30 50 Peak-to-Peak Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 2 30 50 mV Vout 1 15 30 RMS Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 2 15 30 mV Vout 1 0 13 Operating Output Current Range Vout 2 0 8 A Vout 1 14.5 Output DC Current-Limit Inception Vout 2 9.5 A DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Vout 1 100 Positive Step Change in Output Current Iout1and Iout2 from 50% Io, max to 75% Io, max Vout 2 100 mV Vout 1 100 Negative Step Change in Output Current Iout2 and Iout1 from 75% Io, max to 50% Io, max Vout 2 100 mV Cross dynamic 100 mV Settling Time (within 1% Vout nominal) 100 us Turn-On Transient Delay Time, From On/Off Control 5 ms Delay Time, From Input 5 ms Start-up Time, From On/Off Control 10 ms Start-up Time, From Input 10 ms Full load; 5% overshoot of Vout at startup Vout 1 10000 Maximum Output Capacitance Vout 2 5000 µF EFFICIENCY 100% Load Iout1, Iout2 full load, 48vdc Vin 85.3 % 60% Load Iout1, Iout2 60% of full load, 48vdc Vin 86.5 % ISOLATION CHARACTERISTICS Input to Output <1 minute 1500 Vdc Input to Case Output to Case Isolation Resistance 10 MΩ Isolation Capacitance 2000 pF FEATURE CHARACTERISTICS Switching Frequency 300 kHz ON/OFF Control, (Logic Low-Module ON) Logic Low Von/off at Ion/off=1.0mA 0 0.8 V Logic High Von/off at Ion/off=0.0 µA 18 V ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 1 mA Output Voltage Trim Range Just trim Vout1, Pout ≦ max rated power -10 +10 % Output Boltage Remoote Sense Range No Remote Sense Function Output Over-Voltage Protection Over full temp range; %of nominal Vout 120 135 150 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C 2.69 M hours Weight 25 grams Over-Temperature Shutdown Refer to Figure 27 for measuring point 120 °C |
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