WT7512数据手册Weltrend中文资料规格书

描述 Description

The WT7512 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 / Under Voltage Detector (OVD / UVD) monitors 3.3V, 5V, 12V 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 2.4mS 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. The WT7512 is similar to WT7510. It added under voltage detector of 12V and the short power–on
protection. And the delay time 1.2mS is changed to 2.4mS.

特性 Features

• The Over / Under Voltage Detector (OVD / UVD) monitors 3.3V, 5V, 12V input voltage level.
• Both of the power good output (PGO) and fault protection latch (FPL_N) are Open Drain Output.
• 75 / 300 ms time delay for UVD.
• 300 ms time delay for PGO.
• 38 ms for PDON_N input signal De–bounce.
• 73 us for internal signal De–glitches.
• 2.4 ms time delay for PDON_N turn-off FPL_N.