Preliminary GR9230HF Multi-Mode PWM Power Switch with Integrated Protections Features Description Low Start-Up Current (<2uA) The GR9230HF is integrates a high performance Multi-Mode Operation (CCM&QR) multi-mode (QR/CCM) PWM controller and a high CCM Heavy Load and Low Line voltage power MOSFET of 650V. It minimizes the QR-Like Operation Medium Load components counts and is available in a tiny DIP-8 Green mode with Valley Skip at Light Load package. Those make it an ideal design for low cost Burst Mode at No Load application. It provides functions of low startup Accurate Over Current Protection current, green- mode power-saving operation, VCC Adjustment OVP on QRD Pin over-voltage protection, and QRD pin abnormal Output Short Protection conditions sensing to prevent the circuit being Soft Driver damaged from the abnormal conditions. 8ms Soft-start OVP (Over Voltage Protection) on Vcc Pin Applications On Chip OTP Protection Switching AC/DC power adapter Built-in 650V/8A MOSFET SMPS Power Supply DIP-8 Package Typical Application Information EMI FILTER DRAIN VCC DRAIN QRD CS GND GND COMP GR9230HF 2019.01. Ver.A Copyright Nanjing Greenchip Semiconductor Co., Ltd.( Grenergy OPTO Inc. ) www.grenergy-ic.com 1 Preliminary GR9230HF Ordering and Marking Information GR9230HF Package Code RoHS Code G: Green (Halogen Free) Device J: DIP-8 L : PB Free DIP-8 GR9230HF X X XXX Serial No. Code 1 Code 2 Code 1 8 9 A B G H I J Year 2008 2009 2010 2011 2016 2017 2018 2019 Code 2 1 2 3 4 9 A B C Month Jan. Feb. Mar. Apr. Sep. Oct. Nov. Dec. Nanjing Greenchip Semiconductor Co., Ltd.( Grenergy OPTO Inc. ) reserves the right to make changes to improve reliability or manufacture ability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Pin Configuration (TOP VIEW) DIP-8 1 8 VCC GND 2 7 COMP GND 3 6 QRD DRAIN 4 5 CS DRAIN Pin Description Pin No. Name Function 1 VCC Power supply pin Voltage feedback pin, by connecting a photo-coupler to control the duty 2 COMP cycle 3 QRD This pin is for quasi-resonant detection and OVP. Current sense pin, connected to sense resistor for sensing the 4 CS MOSFET current signal DRAIN Drain of internal HV MOSFET 5,6 7,8 GND Ground reference pin 2019.01. Ver.A Copyright Nanjing Greenchip Semiconductor Co., Ltd.( Grenergy OPTO Inc. ) www.grenergy-ic.com 2