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
WT7510
GENERAL DESCRIPTION
The WT7510 provides protection circuits, power good output (PGO), fault protection latch (FPL_N),
and a protection detector function (PDON_N) 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 Under Voltage
Detector (UVD) monitors 3.3V, 5V input voltage level. When OVD or UVD detect the fault voltage level,
the FPL_N is latched HIGH and PGO go low. The latch can be reset by PDON_N goo HIGH. There is 2.4
ms delay time for PDON_N turn off FPL_N.
When OVD and UVD detect the right voltage level, the power good output (PGO) will be issue.
FEATURES
The Over Voltage Detector (OVD) monitors 3.3V, 5V, 12V input voltage level.
The Under Voltage Detector (UVD) monitors 3.3V, 5V input voltage level.
Both of the power good output (PGO) and fault protection latch (FPL_N) are Open Drain Output.
75 ms time delay for UVD.
300 ms time delay for PGO.
38 ms for PDON_N input signal Debounce.
73 us for internal signal Deglitches.
2.4 ms time delay for PDON_N turn-off FPL_N.
PIN ASSIGNMENT AND PACKAGE TYPE
PIN DESCRIPTION
Pin No. Pin Name TYPE
Description
1
PGI
I
power good input pin
2
GND
P
Ground
3
FPL_N
O
fault protection latch output pin(open drain output)
4
PDON_N
I
protection detector function ON/OFF control input pin
5
V33
I
3.3V input pin
6
V5
I
5V input pin
7
VCC
I
Supply voltage / 12V input pin
8
PGO
O
power good output pin(open drain output)
8
7
6
5
1
2
3
4
PGI
GND
FPL_N
PDON_N
PGO
VCC
V5
V33
Package type
ORDERING INFORMATION
8Pin Plastic DIP
WT7510N080WT12
8Pin Plastic SOIC WT7510S080WT12
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