WT7502 Description
The WT7502 provides protection circuits, power good output (PGO), fault protection latch (FPOB), and a protection detector function (PSONB) control. It can minimize external ponents of switching power supply systems in personal puter. The Over / Under Voltage Detector (OVD / UVD) monitors V33, V5 and VCC input voltage level.
WT7502 Key Features
- The Over / Under Voltage Detector (OVD / UVD) monitors V33, V5 and VCC input voltage
- Both of the power good output (PGO) and fault protection latch (FPOB) are Open Drain Output
- 75 ms time delay for UVD
- 300 ms time delay for PGO
- 38 ms for PSONB input signal De-bounce
- 73 us for PGI / UVD internal signal De-glitches
- 55 us for OVD internal signal De-glitches
- 3.5 ms time delay for PSONB turn-off FPOB
- The UVD would been disabled when PGI < 1.2V
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