GS4T48-5
4 W DC-DC CONVERTER
June 1994
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Type
V
i
V
o
I
o
GS4T48-5
38 to 60 V
5 V
800 mA
DESCRIPTION
The GS4T48-5 is a 4W DC-DC converter designed
to provide a 5V/800mA isolated power source.
The module features a wide input voltage range (38
to 60V), low reflected input current and continuous
short-circuit protection. It is certified by UL, CSA
(level 3) and TUV as having SELV output when
provided with a SELV input.
ELECTRICAL CHARACTERISTICS (T
amb.
= 25
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Vi
Input Voltage
Vo = 5V
Io = 50 to 800mA
38
48
60
V
Ii
Input Current
Vi = 38 to 60V
Io = 800mA
140
mA
Iir
Input Reflected
Current
Vi = 48V
Vo = 5V
Io = 800mA
20
30
mApp
Vo
Output Voltage
Vi = 38 to 60V
Io = 50 to 800mA
4.8
5
5.2
V
Vor
Output Ripple Voltage
Vi = 48V
Io = 800mA
BW = 5Hz to 20MHz
30
50
mVpp
V
OL
Line Regulation
Vi = 38 to 60V
Io = 800mA
1
2
mV/V
V
OO
Load Regulation
Vi = 48V
Io = 50 to 800mA
50
75
mV/A
Io
Output Current
Vi = 38 to 60V
Vo = 5V
50
800
mA
Iosc
Output Short-circuit
Current
Vi = 48V
2
A
Vis
Isolation Voltage
500
V
DC
fs
Switching Frequency
Vi = 38 to 60V
Io = 50 to 800mA
50
200
kHz
Efficiency
Vi = 48V
Io = 800mA
70
73
%
Top
Operating Ambient
Temperature Range
Still Air
0
+55
C
Top
Operating Ambient
Temperature Range
Forced ventilation, air speed = 100 LFM
0
+65
C
Tstg
Storage Temperature
Range
40
+85
C
2/3
Package C. Dimensions in mm (inches)
CONNECTION DIAGRAM AND MECHANICAL DATA
SAFETY APPROVALS
The converter is agency certified to the following
safety requirements:
Agency
Requirements
File Number
UL
UL-STD-1950
E141284
CSA
CSA-STD-C22.2 No. 234
LR 99794-3
TUV
EN 60950
DIN VDE 0805
R 9172410
UL is a registered trademark of UNDERWRITERS LABORATORIES inc.
CSA is a registered trademark of CANADIAN STANDARDS ASSOCIATION.
TUV is a registered trademark of TUV Rheinland.
GS4T48-5
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Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics All Rights Reserved
UL is a registered trademark of UNDERWRITERS LABORATORIES inc.
CSA is a registered trademark of CANADIAN STANDARDS ASSOCIATION.
TUV is a registered trademark of TUV Rheinland.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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GS4T48-5
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