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WT7525Y Datasheet PC POWER SUPPLY SUPERVISOR

Manufacturer: Weltrend Semiconductor

Overview: Weltrend Semiconductor, Inc. ` WT7525Y PC POWER SUPPLY SUPERVISOR Data Sheet REV. 0.40 Preliminary release February 21, 2005 The information in this document is subject to change without notice. ©Weltrend Semiconductor, Inc. All Rights Reserved. 24 2 2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan TEL:886-3-5780241 FAX:886-3-5794278.5770419 Email:support@weltrend.com.tw WT7525Y Preliminary release Rev. 0.

General Description

The WT7525Y 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, V12B and V12C input voltage level.

Key Features

  • The Over/Under Voltage Detector (OVD / UVD) monitors V33, V5, V12A, V12B and V12C input voltage.
  • The Over Current Detector (OCD) monitors IS33, IS5, IS12A, IS12B and IS12C input current sense.
  • Both of the power good output (PGO) and fault protection latch (FPOB) are Open Drain Output.
  • 75 / 300 ms time delay for UVD.
  • 300 ms time delay for PGO.
  • 38 ms for PSONB input signal De.
  • bounce.
  • 73 us for PGI/OVD/UVD internal signal.