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E48SC Datasheet(PDF) 2 Page - Delta Electronics, Inc.

Part # E48SC
Description  Industry standard pin out
Download  15 Pages
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Manufacturer  DELTA [Delta Electronics, Inc.]
Direct Link  http://www.deltaww.com
Logo DELTA - Delta Electronics, Inc.

E48SC Datasheet(HTML) 2 Page - Delta Electronics, Inc.

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DS_E48SC3R325_06152011
2
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
E48SC3R325 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
75
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Temperature
Refer to Figure 21 for measuring point
-40
115
°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
1.5
2.5
3.5
Vdc
Maximum Input Current
100% Load, 36Vin
2.9
A
No-Load Input Current
50
mA
Off Converter Input Current
6
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
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
3.267
3.300
3.333
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±3
±7
mV
Over Line
Vin=36V to 75V
±3
±7
mV
Over Temperature
Tc=-40°C to 85°C
±15
mV
Total Output Voltage Range
over sample load, line and temperature
3.234
3366
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
50
70
mV
RMS
Full Load, 1µF ceramic, 10µF tantalum
15
30
mV
Operating Output Current Range
0
25
A
Output DC Current-Limit Inception
Output Voltage 10% Low
112
136
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current
50% Io.max to 75% Io.max
120
mV
Negative Step Change in Output Current
75% Io.max to 50% Io.max
120
mV
Settling Time (within 1% Vout nominal)
200
us
Turn-On Transient
Start-Up Time, From On/Off Control
12
ms
Start-Up Time, From Input
12
ms
Maximum Output Capacitance
Full load; 5% overshoot of Vout at startup
20000
µF
EFFICIENCY
100% Load
91.0
%
60% Load
92.0
%
ISOLATION CHARACTERISTICS
Input to Output
1500
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
3300
pF
FEATURE CHARACTERISTICS
Switching Frequency
350
kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
0.7
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
2
18
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
0.7
V
Logic High (Module On)
Von/off at Ion/off=0.0 µA
2
18
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=15V
50
uA
Output Voltage Trim Range
Across Pins 9 & 5, Pout ≦ max rated power
-10%
10%
%
Output Voltage Remote Sense Range
Pout ≦ max rated power
10
%
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
3.8
4.46
V
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; 300LFM @25C
3.6
M hours
Weight
25
grams
Over-Temperature Shutdown
Refer to Figure 21 for measuring point
120
°C


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