WT7527
Overview
The WT7527 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 VX, V33, V5, V12A and V12B input voltage.
- The Under Voltage Detector (UVD) monitors V33, V5, V12A and V12B input voltage.
- The Over Current Detector (OCD) monitors I33&33, I5&V5, I12A&V12A and I12B&V12B input pins.
- The VX > 1.2V provide an extra protection.
- Both of the power good output (PGO) and fault protection latch (FPOB) are Open Drain Output.
- 75 / 600 ms time delay for UVD / OCD / VX .
- 300 ms time delay for PGO.
- 38 ms for PSONB input signal De-bounce.
- 14 us for OVD internal signal De-glitch.
- 60 us for UVD / VX internal signal De-gl
