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TECHNICAL SPECIFICATIONS
T
= 25°C, airflow rate = 300 LFM, V
A
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient(100ms)
Operating Temperature
Storage Temperature
Input/Output Isolation Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
2
Inrush Current (I
t)
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time (within 1% Vout nominal)
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Maximum Output Capacitance
EFFICIENCY
100% Load
60% Load
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Logic High (Module Off)
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Logic High (Module On)
ON/OFF Current (for both remote on/off logic)
Leakage Current (for both remote on/off logic)
Output Voltage Trim Range
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
DS_S48SE05003_12292006
= 48 Vdc, nominal Vout unless otherwise noted.
in
NOTES and CONDITIONS
Refer to Figure 20 for measuring point
100% Load, 36Vin
P-P thru 12µH inductor, 5Hz to 20MHz
Vin=48V, Io=Io.max, Tc=25°C
Io=Io, min to Io, max
Tc=-40°C to
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
Output Voltage 10% Low
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
Full load; 5% overshoot of Vout at startup
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Across Trim Pin & +Vo or –Vo, Pout≦max rated
Over full temp range;
Io=80% of Io, max; Ta=25°C, 300LFM
Refer to Figure 20 for measuring point
100ms
120 Hz
Vin=36V to 75V
100°C
Von/off
Von/off
Von/off
Von/off
S48SE05003 (Standard)
Min.
Typ.
Max.
80
100
-40
109
-55
125
2250
36
75
33
34
35
31
32
33
1.0
2
3.0
0.5
18
30
7
0.01
15
60
4.925
5.0
5.075
±3
±10
±3
±10
±50
4.85
5.15
50
12
0
3
110
140
100
100
250
16
25
16
25
1000
87.0
86.0
2250
10
1000
400
-0.7
0.8
2
18
-0.7
0.8
2
18
0.25
30
-10%
10%
5.75
7.5
5.71
9.2
115
Units
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
2
A
s
mA
dB
Vdc
mV
mV
mV
V
mV
mV
A
%
mV
mV
us
ms
ms
µF
%
%
Vdc
MΩ
pF
kHz
V
V
V
V
mA
uA
%
V
M hours
grams
°C
2
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