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E48SR2R520 Datasheet(PDF) 2 Page - Delta Electronics, Inc.

Part No. E48SR2R520
Description  Delphi Series E48SR, 66W Eighth Brick Family DC/DC Power Modules: 48V in, 2.5V/20A out
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Maker  DELTA [Delta Electronics, Inc.]
Homepage  http://www.deltaww.com
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TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
E48SR2R520 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
80
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Temperature
Refer to Fig.21 for the measuring point
-40
108
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
1500
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
1.9
A
No-Load Input Current
60
mA
Off Converter Input Current
4
mA
Inrush Current(I
2t)
1
A
2s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
25
mA
Input Voltage Ripple Rejection
120 Hz
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
2.460
2.500
2.540
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±3
±10
mV
Over Line
Vin=36V to 75V
±3
±10
mV
Over Temperature
Tc=-40°C to 85°C
±15
mV
Total Output Voltage Range
over sample load, line and temperature
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
50
80
mV
RMS
Full Load, 1µF ceramic, 10µF tantalum
15
25
mV
Operating Output Current Range
0
20
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
50% Io.max to 75% Io.max
80
mV
Negative Step Change in Output Current
75% Io.max to 50% Io.max
80
mV
Settling Time (within 1% Vout nominal)
200
us
Turn-On Transient
Start-Up Time, From On/Off Control
6
ms
Start-Up Time, From Input
6
ms
Maximum Output Capacitance
Full load; 5% overshoot of Vout at startup
10000
µF
EFFICIENCY
100% Load
89.0
%
60% Load
90.0
%
ISOLATION CHARACTERISTICS
Input to Output
1500
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)
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
3.0
V
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; Tc=40°C
3.03
M hours
Weight
19.6
grams
Over-Temperature Shutdown
Refer to Fig. 21 for the measuring point
121
°C
DS_E48SR2R520_02272007
2




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