Delta Electronics Delphi Series E24SR - Manual (Page 2)

DS_E24SR05012_01032008 2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
= 24 Vdc, nominal Vout unless otherwise noted.)
PARAMETER NOTES and CONDITIONS E24SR05012 (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 -40 118 °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 3.9 A
No-Load Input Current 80 150 mA
Off Converter Input Current 3 10 mA
Inrush Current (I 2 t) 0.1 A 2 s
Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 15 mA
Input Voltage Ripple Rejection 120 Hz 55 dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point Vin=24V, Io=Io.max, Tc=25°C 4.925 5.075 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 ±50 mV
Total Output Voltage Range Over sample load, line and temperature 4.875 5 5.125 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 12 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 150 250 mV
Negative Step Change in Output Current 75% Io.max to 50% Io.max 150 250 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; CR mode;5% overshoot of Vout at startup 5000 µF
EFFICIENCY
100% Load 90.5 %
60% Load 90.5 %
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; 5.75 7 V
GENERAL SPECIFICATIONS
MTBF Io=80% of Io, max; Ta=25°C, 300LFM airflow 3.86 M hours
Weight 22.0 grams
Over-Temperature Shutdown Refer to figure 21 for measuring point 123 °C