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H48SN28012NRFA Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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H48SN28012NRFA Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
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2 / 13 page  TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=600 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS H48SN28012 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Operating Temperature Please refer to Fig.21 for measuring point -40 110 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 36 48 75 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 33 35 Vdc Turn-Off Voltage Threshold 31 33 Vdc Lockout Hysteresis Voltage 1 3 Vdc Maximum Input Current 100% Load, 36Vin 12.6 A Minimum -Load Input Current 260 mA Off Converter Input Current Per ETSI EN300 132-2 15 mA Inrush Current(I 2t) 0.2 1 A 2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 12 mA Input Voltage Ripple Rejection 120 Hz 60 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 27.72 28.00 28.28 Vdc Output Voltage Regulation Over Load Io=Io,min to Io,max ± 20 ± 112 mV Over Line Vin=36V to 75V ± 20 ± 56 mV Over Temperature Tc=-40°C to 100°C ± 250 ± 300 mV Total Output Voltage Range over sample load, line and temperature 27.25 28.00 28.75 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF Low ESR cap 60 150 mV RMS Full Load, 1µF ceramic, 10µF Low ESR cap 14 40 mV Operating Output Current Range 0.3 12.5 A Output DC Current-Limit Inception Output Voltage 10% Low 120 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 48V, Tested with a aluminum ,10µF Low ESR cap and 1µF Ceramic load cap, ΔIo/Δt=1A/10µS Positive Step Change in Output Current 50% Io.max to 75% Io.max 150 mV Negative Step Change in Output Current 75% Io.max to 50% Io.max 150 mV Settling Time (within 1% Vout nominal) 300 us Turn-On Transient Start-Up Time, From On/Off Control 20 35 ms Start-Up Time, From Input 20 35 ms Output Capacitive Load Full load; 5% overshoot of Vout at startup 330 5000 µF EFFICIENCY 100% Load 91.0 % 60% Load 91.5 % ISOLATION CHARACTERISTICS Input to Output 2250 Vdc Input to Case 2250 Vdc Output to Case 500 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1900 pF FEATURE CHARACTERISTICS Switching Frequency 330 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 15 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 15 V ON/OFF Current Ion/off at Von/off=0.0V 1 mA Leakage Current Logic High, Von/off=15V 50 uA Output Voltage Trim Range Across Pins 9 & 5, Pout ≦ max rated power -40 +10 % Output Voltage Remote Sense Range Pout ≦ max rated power 0.5 V Output Over-Voltage Protection Over full temp range; % of nominal Vout 115 140 % GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C 1.35 M hours Weight 62 grams Over-Temperature Shutdown Please refer to Fig.21 for measuring point 115 °C H48SN28012_09262006 2 |
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