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-7 and DIP-8 Package with Few External Components Needed
Description
The GR9230HK is 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 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
