WT7502R

The WT7502R 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 V33, V5 and VCC input voltage level. When OVD or UVD detects the fault voltage level, the FPOB is latched HIGH and PGO goes low. When PGI detects the fault voltage level, the FPOB would be kept LOW and PGO goes low. The latch can be reset by PSONB going HIGH. There is 3.5 ms delay time for PSONB turning off FPOB.
When PGI, OVD and UVD detect the right voltage level, the power good output (PGO) will be issued.