GS2T12-9S
2 W LAN DC-DC CONVERTER
December 1993
1/2
Type
V
in
V
out
I
out
GS2T12-9S
9,5 to 15,75 V
9 V
250 mA
DESCRIPTION
The GS2T12-9S is a 2.25W unregulated DC-DC
converter designed to provide power, voltage regu-
lation and isolation for Local Area Network
(CHEAPERNET and ETHERNET) transceivers
from a wide range of input voltage, according to
IEEE 802.3 Standard.
Enable function, active high, is available with
CMOS/TTL logic operation compatibility.
ELECTRICAL CHARACTERISTICS (T
amb.
= 25
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Vi
Input Voltage
Vo= -9V
Io= 0 to 250mA
9.50
12
15.75
V
Vir
Input Ripple
Vi = 12V
Io = 250mA
45
75
mVpp
Iir
Reflected Input
Current
Vi= 12V
Io= 250mA
10
20
mApp
lien
Enable Input Current
Vi = 9.50 to 15.75V
0.2
mA
Vo
Output Voltage
Vi= 9.50 to 15.75V
Io= 0 to 250mA
-8.55
-9.00
-9.45
V
Vor
Output Ripple Voltage
Vi= 12V
Io = 250mA
30
70
mVpp
Vis
Isolation Voltage
Input to Output
2500
Vdc
Efficiency
Vi= 12V
Io= 250mA
68
71
%
Top
Operating Ambient
Temperature Range
0
+70
C
Tstg
Storage Temperature
Range
-40
+85
C
2/2
Package B. Dimensions in mm (inches)
CONNECTION DIAGRAM AND MECHANICAL DATA
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
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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GS2T12-9S
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