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GS120T48-3.3ELECTRICAL CHARACTERISTICS
(T
amb
= 25
°
C unless otherwisespecified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Vi
Input Voltage
Vo= 3.35V
(Operating Conditions)
Io= 0 to 35A
38
48
60
VDC
Viuv
Input Undervoltage Lockout
Vo = 3.35V
Io= 0to 35A
Vi= 0 to 60V
Io = 35A
Vi= 60V
Io= 35A
Vi= 38 to 60V
BW = 5Hz to 20MHz
Io = 35A(See fig. 2)
Vi= 38 to 60V Io= 0 to 35A
Vi= 38 to 60V Io = 0 to 35A
Vien = 0V
Vi= 38 to 60V Io = 0 to 35A
Vien = open
32
34
36
VDC
li
Average Input Current
4.2
A
lipk
Inrush Transient Peak Current
0.2
A
2
s
lir
Reflected Input Current
20
mApp
Vien
lien
Enable Input Voltage
0
1.2
V
Enable Input Current
-1
mA
Viinh
Inhibit Voltage
8
18
V
Pi
Vo
Vost
Input Power
Vi= 38 to 60V Io = 0A(No Load)
Vi= 38 to 60V Io = 0 to 35A
Vi= 38 to 60V Io = 0 to 35A
1.5
2
W
Total Output Voltage Regulation
3.25
3.35
3.45
V
Short-term Output
Voltage Regulation
3.30
3.35
3.40
V
Vots
Vol
Total Static Tolerance
Vi= 38 to 60V Io= 0 to 35A
Vi= 38 to 60V Io = 0 to 35A
3.28
3.35
3.42
V
Output Overvoltage
Limit Initiation
4
4.5
5.2
VDC
Vor
Von
Vo
Output Ripple Voltage
Vi= 38 to 60V Io= 35A
Vi= 38 to 60V Io = 35A
Vi= 38 to 60V
20
30
mVpp
Output Noise Voltage
50
80
mVpp
Total Remote Sense
Compensation
0.6
V
δ
Vo
Peak Load Transient Response
Vi= 48V
δ
Io = 5A
slope = 0.1A/
μ
s
Vi= 38 to 60V Vo= 3.35V
Vi= 48V
Vi= 48V
Vo= 0.2 to 0.5V
Vi= 48V
δ
Io = 5A
slope = 0.1A/
μ
s
Vi= 48V
Vien= fromhigh to low
Vi= 0 to 60V
Vien= low
60
mVp
Io
Iol
Iosc
Output Current
0
35
A
Overcurrent Limit Initiation
36
39
A
Shortcircuit Output Current
51
A
ts
Load Transient SettlingTime
200
μ
s
ton
Turn-on Time
Io= 35A
5
ms
Io = 35A
3
10
Vis
fs
η
Rth
Tcop
Isolation Voltage
500
V
Switching Frequency
Vi= 38 to 60V Io= 0 to 35A
Vi= 38 to 60V Io= 35A
Case toAmbient
160
175
200
kHz
Efficiency
Thermal Resistance
76
77
%
5.2
°
C/W
°
C
Operating Case
Temperature Range
– 10
+85
Tstg
Storage Temperature Range
– 40
+105
°
C
2/10
GS120/175T48 FAMILY