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Q48VDB12003NRMNFA Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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Q48VDB12003NRMNFA Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
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2 / 13 page  DS_Q48DB12003_04182006 2 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DB12003NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Temperature Refer to Figure 20 for measuring point -40 123 °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 1 2 3 Vdc Maximum Input Current 100% Load, 36Vin 2.4 A No-Load Input Current 100 200 mA Off Converter Input Current 5 10 mA Inrush Current(I 2t) 0.01 A 2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 10 20 mA Input Voltage Ripple Rejection 120Hz 66 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, lo=lo. Max, Tc=25℃ Vout 1,2 ± 12.00 ± 12.10 ± 12.20 V Output Voltage Regulation Over Load lo1or lo2=lo, min to lo, max | Io1-Io2| <20% Io,max Vout 1,2 120 180 mV Over Line Vin=36V to 75V,Io1=Io2=full load Vout 1,2 60 120 mV Cross Regulation Worse Case 100 220 mV Over Temperature Tc=-40℃ to 115℃ 100 200 mV Total Output Voltage Range Over all load, line and temperature ±11.700 ±12.500 mV Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 1, 2 50 80 mV RMS Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum Vout 1, 2 25 50 mV Operating Output Current Range Vout 1, 2 0 2.7 A Output DC Current-Limit Inception Lout 1＋ lout 2 115 150 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Vout 1 200 400 Positive Step Change in Output Current Iout1 or Iout2 from50% Io, max to 75% Io, max Vout 2 200 400 mV Vout 1 200 400 Negative Step Change in Output Current Iout2 or Iout1 from 75% Io, max to 50% Io, max Vout 2 200 400 mV Cross dynamic Settling Time (within 1% Vout nominal) 100 us Turn-On Transient Delay Time, From On/Off Control 10 ms Delay Time, From Input 10 ms Start-up Time, From On/Off Control 10 ms Start-up Time, From Input 10 ms Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 5000 µF EFFICIENCY 100% Load Iout1, Iout2 full load 90 % 60% Load Iout1, Iout2 60% of full load 88 % ISOLATION CHARACTERISTICS Input to Output <1 minute 1500 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1800 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 300 uA Output Voltage Trim Range Pout ≦ max rated power - 10 +10 % Output Voltage Remote Sense Range Pout ≦ max rated power Output Over-Voltage Protection Over full temp range; %of nominal Vout 115 122 145 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=40°C 2.09 M hours Weight 25 27.7 30 grams Over-Temperature Shutdown Refer to hot spot temperature 130 °C |
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