WT7525数据手册Weltrend中文资料规格书

描述 Description

The WT7525 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, V12A and V12B input voltage level. The Over Current Detector (OCD) monitor V33&I33, V5&I5, V12B&I12AB and V12A&I12AB input current sense. When OVD or UVD or OCD detect the fault voltage level, the FPOB is latched HIGH and PGO go low. The latch can be reset by PSONB go HIGH. There is 3.5 ms delay time for PSONB turn off FPOB. When OVD and UVD and OCD detect the right voltage level, the power good output (PGO) will be issue.

特性 Features

●The Over/Under Voltage Detector (OVD / UVD) monitors V33, V5, V12A and V12B input voltage.
●The Over Current Detector (OCD) monitors V33&I33, V5&I5, V12B&I12AB and V12A&I12AB input current sense.
●Both of the power good output (PGO) and fault protection latch (FPOB) are Open Drain Output.
●75ms / 300ms time delay for UVD and OCD.
●300ms time delay for PGO.
●38ms for PSONB input signal De–bounce.
●73us for PGI/OVD/UVD internal signal De–glitches.
●1.2ms / 20ms for OCD internal signal De–glitches.
●3.5ms time delay for PSONB turn-off FPOB.
●Package: SOP/DIP 14/16/18