Table of Contents
Advertisement
TECHNICAL SPECIFICATIONS
(T
=25°C, airflow rate=300 LFM, V
A
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
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
Input Over-Voltage Lockout
Turn-Off Voltage Threshold
Turn-On 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
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 Power Range
Output Current Protection
Current share accuracy (2 units in parallel)
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time (Vo deviation recover to 10% of max
deviation)
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)
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
DS_E48SB12020_05222008
=48Vdc, nominal Vout unless otherwise noted.)
in
NOTES and CONDITIONS
Refer to Figure 18 for the measuring point
P-P thru 12µH inductor, 5Hz to 20MHz
Vin=48V, Io=no load, Ta=25°C
over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
Output current range when Vin below 44V
Output power range when Vin=44V and above
% of rated output current
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
Logic High, Von/off=15V
Refer to Figure 18 for the measuring point
100% Load, 44V Vin
Io=Io,min to Io,max
Vin=38V to 55V
Tc=-40°C to 105°C
Vin=38V to 55V
100% Load
100% Load
Von/off
Von/off
Von/off
Von/off
Ion/off at Von/off=0.0V
Io=80% of Io, max;
E48SB12020 (Standard)
Min.
Typ.
Max.
60
-40
128
-55
125
2250
38
48
55
35
36
37
33
34
35
1
2
3
57.5
58.5
59.7
55.5
56.5
57.5
1
2
3
5.68
85
100
10
11
0.02
10
20
11.85
300
400
4.3
4.5
250
8.9
13.75
80
100
25
40
0
22.3
0
240
110
130
10
0
0
0
10
16
16
28
3000
96.3
95.8
2250
10
1000
190
-0.7
0.8
2
18
-0.7
0.8
2
18
0.25
0.3
30
2.01
M hours
31.76
130
Units
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
2
A
s
mA
Vdc
mV
V
mV
V
mV
mV
A
W
%
%
mV
mV
us
ms
ms
µF
%
%
Vdc
MΩ
pF
kHz
V
V
V
V
mA
uA
grams
°C
2
Advertisement
Table of Contents
