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E24SR Datasheet(PDF) 2 Page - Delta Electronics, Inc. |
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E24SR Datasheet(HTML) 2 Page - Delta Electronics, Inc. |
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2 / 14 page  DS_E24SR12005_10282013 2 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=24 Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS E24SR12005 (Standard) Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 36 Vdc Transient (100ms) 100ms 50 Vdc Operating Temperature Refer to figure 21 for measuring point 117 °C Storage Temperature -55 125 °C Input/Output Isolation Voltage 2250 Vdc INPUT CHARACTERISTICS Operating Input Voltage 18 36 Vdc Input Under-Voltage Lockout Turn-On Voltage Threshold 16 17 17.8 Vdc Turn-Off Voltage Threshold 15 16 17 Vdc Lockout Hysteresis Voltage 0.7 1 1.5 Vdc Maximum Input Current 100% Load, 18Vin 3.8 A No-Load Input Current 150 180 mA Off Converter Input Current 3 10 mA Inrush Current (I 2t) 0.1 A 2s Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 10 mA Input Voltage Ripple Rejection 120 Hz 55 dB OUTPUT CHARACTERISTICS Output Voltage Set Point Vin=24V, Io=Io.max, Tc=25°C 11.82 12 12.18 Vdc Output Voltage Regulation Over Load Io=Io, min to Io, max ±3 ±10 mV Over Line Vin=18V to36V ±3 ±10 mV Over Temperature Tc=-40°C to100°C ±100 mV Total Output Voltage Range Over sample load, line and temperature 11.76 12.24 V Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 50 100 mV RMS Full Load, 1µF ceramic, 10µF tantalum 15 30 mV Operating Output Current Range 0 5 A Output Over Current Protection Output Voltage 10% Low 110 140 % DYNAMIC CHARACTERISTICS Output Voltage Current Transient 10µF Tan & 1µF Ceramic load cap, 0.1A/µs Positive Step Change in Output Current 50% Io.max to 75% Io.max 180 250 mV Negative Step Change in Output Current 75% Io.max to 50% Io.max 180 250 mV Settling Time (within 1% Vout nominal) 150 us Turn-On Transient Start-Up Time, From On/Off Control 5 ms Start-Up Time, From Input 5 ms Back bias start-up 90% of nominal output voltage Back drive current limit while pin on-off is enabled Io=0A 0.1 A Back drive current limit while pin on-off is disabled Io=0A 50 mA Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 2000 µF EFFICIENCY 100% Load 90.5 % 60% Load 90 % ISOLATION CHARACTERISTICS Input to Output 2250 Vdc Isolation Resistance 10 MΩ Isolation Capacitance 1500 pF FEATURE CHARACTERISTICS Switching Frequency 350 kHz ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) -0.7 0.5 V Logic High (Module Off) 3 18 V ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) -0.7 0.5 V Logic High (Module On) 3 18 V On/off pin open circuit voltage 9.6 V On/off pin pull down resistance 12 Kohm 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 temp range; 13.8 16.8 V GENERAL SPECIFICATIONS MTBF Io=80% of Io, max; Ta=25°C, 300LFM airflow 2.81 M hours Weight 22.0 grams Over-Temperature Shutdown Refer to figure 21 for measuring point 130 °C |
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