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E48SC12008NTFA Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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E48SC12008NTFA Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
2 / 17 page DS_E48SC12008_03192012 2 LUO LUOTECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS E48SC12008 (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 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 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 3.5 A No-Load Input Current 80 mA Off Converter Input Current 10 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 60 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 11.88 12.00 12.12 Vdc Output Voltage Regulation Over Load Io=Io,min to Io,max ±3 ±15 mV Over Line Vin= 36V to 75V ±3 ±15 mV Over Temperature Tc= -40°C to 85°C ±100 mV Total Output Voltage Range Over sample load, line and temperature 11.76 12.25 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 40 120 mV RMS Full Load, 1µF ceramic, 10µF tantalum 15 25 mV Operating Output Current Range 0 8 A Output DC Current-Limit Inception Output Voltage 10% Low 110 140 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Positive Step Change in Output Current 25% Io.max to 50% Io.max 200 mV Negative Step Change in Output Current 50% Io.max to 25% Io.max 200 mV Settling Time (within 1% Vout nominal) 200 µs Turn-On Transient Start-Up Time, From On/Off Control 40 80 ms Start-Up Time, From Input 40 80 ms Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 2000 µF EFFICIENCY 100% Load 48Vin 92.0 % 60% Load 48Vin 90.5 % ISOLATION CHARACTERISTICS Input to Output 2250 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF FEATURE CHARACTERISTICS Switching Frequency 350 400 kHz ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) Von/off at Ion/off=1.0mA -0.7 0.8 V Logic High (Module Off) Von/off at Ion/off=0.0 µA 3.5 12 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Von/off at Ion/off=1.0mA -0.7 0.8 V Logic High (Module On) Von/off at Ion/off=0.0 µA 3.5 12 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=12V 50 µA Output Voltage Trim Range Pout ≦ max rated power -10% 10% % Output Voltage Remote Sense Range Pout ≦ max rated power 10 % Output Over-Voltage Protection Over full temperature range 13.8 15.0 16.8 V GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; 300LFM @25C 2.2 M hours Weight Without heat-spreader 21.4 grams Weight With heat-spreader 33.5 grams Over-Temperature Shutdown ( Without heat spreader, Hot spot 1) Refer to Figure 19 for Hot spot 1 location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 127 °C Over-Temperature Shutdown ( Without heat spreader, NTC Resistor) Refer to Figure 19 for NTC resistor location 123 °C Over-Temperature Shutdown (With heat spreader, Hot spot 2) Refer to Figure 21 for Hot spot 2 location (48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-) 118 °C N ote: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference. |
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