QR-Mode Flyback Converter with Integrated Protections

Features

l  Built-in 650V GaN Power Devices

l  Low Start-Up Current

l  Soft Driving to Reduce EMI

l  Multi-Mode Operation (QR/DCM/Burst) QR Operation @ Full/Medium Load

DCM Operation @ Light Load

Burst Mode at No Load

l  Switching frequency is up to 160KHz

l  8ms Soft-start

l  Over Current Protection (OCP)

l  Over Load Protection (OLP)

l  Short Circuit Protection (SCP)

l  Brown in/out on ZCD Pin

l  Over Voltage Protection on VCC Pin

l  Output Over Voltage Protection on ZCD Pin

l  On Chip OTP Protection

l  ESOP7 Package

Description

GN9235  is  a  high  performance  multi-mode (QR/DCM/Burst)  PWM converter  integrated a 650V   GaN   power   MOSFET.   It   could   turn standby mode to green mode for high switching efficiency.  It provides functions of low startup current,  over  current  protection,  over  voltage protection, short circuit protection, brown in/out protection,  and  internal  OTP  to  prevent  the circuit being damaged.

Application

l  PD+QC Charger

l  Switching Mode Power Supply

Typical Application Information