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65W GaN PD charger

Release time:

2023-06-16 07:57

PROJECT INTRODUCTION

This solution provides a 65W charger based on GaN device. Thecontroller is based on Champion's Dr. flyback, which integrates ahigh-side mos to achieve ZVS. High switching frequency with GaNdevice to achieve higher power density.

DESIGN SPECIFICATION

Input Voltage	90Vac~264Vac
Output Voltage	5V/9V/2V/5V/20V
Rated Power	65W
Switching Frequency	50KHz~250KHz
System Efficiency	Peak 93.8%

FEATURES

· Control strategy is better than traditional QR and ACF, high side & low sideMOSFET ZVS operation;

· Controller with built-in high-side MOS, simple control circuit, high systemreliability and low cost;

· FM & PWM mode to improve efficiency

MAIN TOPOLOGY

MAIN DEVICES

Function	Part Number	Brand
Input Fuse	044303.5	Littelfuse
GaN FET	DTA E601513SEO	Delta
Rectifier Diode	SRT1ONO47LD56TR-G	Sanrise
Controller	Dr.flyback	Champion
Output Filter Capacitor	SVZTEM221E09EOORA	Aishi