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WT7522 - POWER SUPPLY PWM SUPERVISOR

General Description

The WT7522 is a pulse

width modulation (PWM) control circuit with complete protection circuits for used in the SMPS (Switched Mode Power Supply).

Key Features

  • Complete PWM Control and Protection Circuitry.
  • Over Voltage Protection for 3.3V / 5V / V12 / PT.
  • 3.3V / 5V / 12V Under Voltage Warning for PG Low.
  • Under Voltage Protection for 3.3V / 5V / V12.
  • Two Opamp loop function.
  • 300ms PG Time Delay.
  • Power Good Output is Open Drain Output.
  • Push-pull PWM Output.
  • Remote ON/OFF function De.
  • bounce Time.
  • Soft-Start function built-in.
  • 20.
  • Pin Dual In.

📥 Download Datasheet

Datasheet Details

Part number WT7522
Manufacturer Weltrend
File Size 136.63 KB
Description POWER SUPPLY PWM SUPERVISOR
Datasheet download datasheet WT7522 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Weltrend Semiconductor, Inc. WT7522 POWER SUPPLY PWM SUPERVISOR Data Sheet Version 1.10 April 29, 2009 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. WT7522 Data Sheet Rev. 1.10 GENERAL DESCRIPTION The WT7522 is a pulse–width modulation (PWM) control circuit with complete protection circuits for used in the SMPS (Switched Mode Power Supply). It contains various functions, which are Over Voltage Protection, Under Voltage Protection, Power Good Output (PG), Remote On/Off control, Opamp and etc. It can minimize external components of switching power supply systems in personal computer.