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參數(shù)資料
| 型號(hào)： | WT7515-142WT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | provides protection circuits |
| 中文描述： | 提供保護(hù)電路 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 64K |
| 代理商： | WT7515-142WT |
Weltrend Semiconductor, Inc.
24
2
2F, No. 24, Industry E. 9
th
RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
Email:support@weltrend.com.tw
`
WT7515
GENERAL DESCRIPTION
The WT7515 provides protection circuits, power good output (PGO), fault protection latch (FPOB),
and a protection detector function (PSONB) control. It can minimize external components of switching
power supply systems in personal computer.
The Over / Under Voltage Detector (OVD / UVD) monitors 3.3V, 5V, 12V input voltage level. The Over
Current Detector (OCD) monitor IS33, IS5, IS12 input current sense. When OVD or UVD or OCD detect
the fault voltage level, the FPOB is latched HIGH and PGO go low. The latch can be reset by PSONB go
HIGH. There is 2.4 ms delay time for PSONB turn off FPOB.
When OVD and UVD and OCD detect the right voltage level, the power good output (PGO) will be
issue.
FEATURES
The Over / Under Voltage Detector (OVD / UVD) monitors 3.3V, 5V, 12V input voltage level.
The Over Current Detector (OCD) monitors IS33, IS5, IS12 input current sense.
Both of the power good output (PGO) and fault protection latch (FPOB) are Open Drain Output.
75 / 300 ms time delay for UVD.
300 ms time delay for PGO.
38 ms for PSONB input signal De–bounce.
73 us for internal signal De–glitches.
2.4 ms time delay for PSONB turn-off FPOB.
PIN ASSIGNMENT AND PACKAGE TYPE
Pin assignment
PGI
GND
FPOB
PSONB
IS12
RI
NC
PGO
VCC
V5
V33
V12
IS33
IS5
14
13
12
11
10
9
8
1
2
3
4
5
6
7
WT7515–140WT
PGI
GND
FPOB
PSONB
IS12
RI
IS5
PGO
VCC
V5
V33
VCC2
V12
IS33
14
13
12
11
10
9
8
1
2
3
4
5
6
7
WT7515–141WT
PGI
GND
FPOB
PSONB
IS12
RI
VCC2
PGO
VCC
V5
V33
V12
IS33
IS5
14
13
12
11
10
9
8
1
2
3
4
5
6
7
WT7515–142WT
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