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參數(shù)資料
| 型號： | GS2TX-9A |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 2W LAN DC-DC Converter(2W LAN DC-DC轉(zhuǎn)換器) |
| 中文描述： | 2W的局域網(wǎng)的DC - DC轉(zhuǎn)換器（2W的局域網(wǎng)的DC - DC轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 41K |
| 代理商： | GS2TX-9A |
GS2TX-9A
2 W LAN DC-DC CONVERTER
April 1997
1/2
Type
V
i
V
o
I
o
GS2TX-9A
4,5 to 15,75 V
– 9 V
– 250 mA
DESCRIPTION
The GS2TX-9A 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.
An internal network is added to guarantee soft start
at switch-on.
ELECTRICAL CHARACTERISTICS
(T
amb.
= 25
°
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Vi
Iir
Input Voltage
Vo = 9V
Vi = 5V
Vo = – 9V
Vi = 12V
Vo = – 9V
Vi = 4.5 to 15.75V
Io = 0 to – 250mA
Vi = 5V
Io = 0 to – 250mA
4.5
15.75
30
V
Input Reflected
Current
Input Reflected
Current
Io = – 250mA
25
mApp
lir
Io = – 250mA
2
5
mApp
Vo
Output Voltage
– 8.55
– 9.00
– 9.45
V
Vor
Output Ripple
Voltage
Io = – 250mA
7
10
mV
RMS
Vor
Output Ripple
Voltage
Vi = 12V
Io = – 250mA
2
5
mV
RMS
δ
V
OL
δ
V
OO
Io
Vis
η
η
Top
Line Regulation
Load Regulation
Vi = 4.5 to 5.5V
Vi = 4.5 to 15.75V
Vi = 4.5 to 15.75V Vo = – 9V
Io = – 250mA
Io = – 20 to – 250mA
5
mV
5
mV
Output Current
*
0
– 250
mA
Isolation Voltage
2500
70
V
DC
%
Efficiency
Vi = 5V Io = – 250mA
Vi = 12V Io = – 250mA
73
Efficiency
75
80
%
°
C
Operating Ambient
Temperature Range
0
+70
Tstg
Storage Temperature
Range
– 40
+85
°
C
*
When the input voltage is <5V and the output current is less than 20mA, the output ripple voltage increases due to discontinuous operation.
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