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Weltrend

WT7513 Datasheet Preview

WT7513 Datasheet

Protection Detector

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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
  
   
   
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Weltrend

WT7513 Datasheet Preview

WT7513 Datasheet

Protection Detector

No Preview Available !

WT7513
WT7513-N142WT
ORDERING INFORMATION
Device
WT7513-N140WT
WT7513-N141WT
WT7513-N142WT
Package
DIP-14
DIP-14
DIP-14
PIN DESCRIPTION
Pin Name TYPE
PGI I
GND
P
FPOB
O
PSONB
I
IS12
I
RI I
VCC2
I
IS5 I
IS33
I
VS12
I
VS33
I
VS5 I
VCC
I
PGO
O
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
Current sense power supply
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
Power good output signal pin, open drain output
Weltrend Semiconductor, Inc.
Page 2


Part Number WT7513
Description Protection Detector
Maker Weltrend
Total Page 2 Pages
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