WT7513 [ETC]
provides protection circuits, power good output(PGO); 提供保护电路，电源良好输出（ PGO ）
| 型号： | WT7513 |
| 厂家： | 
ETC |
| 描述： | provides protection circuits, power good output(PGO) |
| 文件： | 总2页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Weltrend Semiconductor, Inc.
WT7513
GENERAL DESCRIPTION
The WT7513 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 Voltage Detector(OVD) monitors 3.3V, 5V, 12V input voltage level. The Over Current
Detector (OCD) monitor IS33, IS5, IS12 input current sense :
(1).When OVD or OCD detect the fault voltage level or current sense, the FPOB is latched HIGH.
The PSONB will resets the fault protection latch from LOW to HIGH.
(2).When OVD and OCD and UVD detect the right voltage level, the power good output(PGO) from
LOW to HIGH will be issue.
Add an external resistor between RI pin and GND pin to get an accurate current IRI.
FEATURES
•
The Over Voltage Detector(OVD) monitors 3.3V, 5V, 12V input voltage level.
• The Over Current Detector (OCD) monitor IS33, IS5, IS12 input current sense.
• Provide OVD/OCD and lock out for input voltage 3.3V, 5V, 12V
•
•
•
•
•
Both of the power good output(PGO) & fault protection latch(FPOB) with Open Drain Output Stage.
300 ms time delay for PGO.
38 ms for PSONB input signal Debounce.
73 us for internal signal De-glitches.
1.2 ms time delay for PSONB turn-off FPOB.
PIN CONFIGURATION
WT7513-N141WT
WT7513-N140WT
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢅꢆꢉꢊꢋ24ꢌ2ꢍ
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
Email:support@weltrend.com.tw
WT7513
WT7513-N142WT
ORDERING INFORMATION
Device
Package
WT7513-N140WT
WT7513-N141WT
WT7513-N142WT
DIP-14
DIP-14
DIP-14
PIN DESCRIPTION
Pin Name
PGI
GND
FPOB
PSONB
IS12
TYPE
I
P
O
I
Description
Power good input signal pin
Ground
Fault protection output pin, open drain output
On/Off switch input
12V over current protection sense input
Current sense adjust input
I
I
RI
Current sense power supply
VCC2
IS5
IS33
VS12
VS33
VS5
I
I
I
I
I
I
I
5V over current protection sense input
3.3V over current protection sense input
12V over voltage detect input pin
3.3V over voltage/under voltage input pin
5V over voltage/under voltage input pin
Power supply
VCC
Power good output signal pin, open drain output
PGO
O
Weltrend Semiconductor, Inc.
Page 2
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