Multi-Mode PWM Power Switch with Integrated Protections

Features

l   Built-in 650V Power MOSFET

l   Low Start-Up Current (<2uA)

l Multi-Mode Operation

CCM @ Heavy Load and Low Line

QR-Like Operation @ Medium Load

Green mode with Valley Skip at Light Load

Burst Mode at No Load

l Accurate Over Current Protection

l   Adjustment OVP on QRD Pin

l   Output Short Protection

l   Soft Driver

l   8ms Soft-start

l   OVP (Over Voltage Protection) on VCC Pin

l   On Chip OTP Protection

l SOP-7and DIP-8 Package with Few External Components Needed

Description

The GR9230RL integrates a high performance multi-mode (QR/CCM) PWM controller and a high voltage power MOSFET of 650V. It minimizes the components counts and is available in a tiny SOP-7 and DIP-8 package. Those make it an ideal design for low cost application. It provides functions of low startup current, green- mode power-saving operation, VCC over-voltage protection, and QRD pin abnormal conditions sensing to prevent the circuit being damaged from the abnormal conditions.

Applications

    l Switching AC/DC power adapter

      l SMPS Power Supply

Typical Application Information

Package