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S48SA3R310 Datasheet(PDF) 2 Page - Delta Electronics, Inc.

Part # S48SA3R310
Description  UL/cUL 60950 (US & Canada) recognized
PDF  13 Pages
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Manufacturer  DELTA [Delta Electronics, Inc.]
Direct Link  http://www.deltaww.com
Logo DELTA - Delta Electronics, Inc.

S48SA3R310 Datasheet(HTML) 2 Page - Delta Electronics, Inc.

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DS_S48SA3R310_10112013
TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
S48SA3R310NRFA
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
80
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Temperature
Refer to Figure 18 for measuring point
-40
108
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
1 minute
1500
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
36
48
75
V
Input Under-Voltage Lockout
Turn-On Voltage Threshold
32.5
34
35.5
V
Turn-Off Voltage Threshold
30.5
32
33.5
V
Lockout Hysteresis Voltage
1
2
3
V
Maximum Input Current
100% Load, 36Vin
1.3
A
No-Load Input Current
35
mA
Off Converter Input Current
7
mA
Inrush Current (I
2t)
0.01
A
2s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
5
mA
Input Voltage Ripple Rejection
120 Hz
50
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=50%Io.max, Ta=25℃
3.25
3.30
3.35
V
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±2
±10
mV
Over Line
Vin=36V to75V
±2
±5
mV
Over Temperature
Ta=-40℃ to 85℃
100
300
ppm/℃
Total Output Voltage Range
Over sample load, line and temperature
3.16
3.44
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
25
mV
Operating Output Current Range
0
10
A
Output DC Current-Limit Inception
Output Voltage 10% Low
11
13
15
A
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
35
100
mV
Negative Step Change in Output Current
75% Io,max to 50% Io.max
35
100
mV
Settling Time to 1% of Final value
200
µs
Turn-On Transient
Start-Up Time, From On/Off Control
6
12
ms
Start-Up Time, From Input
6
12
ms
Maximum Output Capacitance
Full load; 5% overshoot of Vout at startup
2200
µF
EFFICIENCY
100% Load
88
90.5
%
ISOLATION CHARACTERISTICS
Isolation Voltage
1500
V
Isolation Resistance
10
MΩ
Isolation Capacitance
1500
pF
FEATURE CHARACTERISTICS
Switching Frequency
330
kHz
ON/OFF Control, (Logic Low-Module ON)
Logic Low
Von/off at Ion/off=1.0mA
0
0.8
V
Logic High
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 Trim Pin & +Vo or
–Vo, Pout≦max rated
-10
+10
%
Output Over-Voltage Protection(Hiccup)
Over full temp range; % of nominal Vout
115
125
140
%
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; Tc=40°C
4.85
M hours
Weight
18
grams
Over-Temperature Shutdown
Refer to figure 18 for the measuring point
115
°C
2



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