SY22812CFVP (SY5022CFVP)

High Frequency QR Flyback Controller with Valley Lockout, E-Mode GaN Driver and Input OVP

Parameters
Features
Description

Part number	SY22812CFVP
Pout (max) (W)	140
HV startup	YES
Operation mode	QR
Driving FETs type	GaN
No load loss (mW)	<50
Switching frequency (min)(kHz)	25
Switching frequency (max)(kHz)	300
Features	Programmable gate driver current,Valley lock,Burst mode,X-capacitor discharge
Package	SSOP9
Operating temperature range(°C)	-40 to 125
Functional safety category

DCM+QR Combined Operating Mode
Direct Enhancement-Mode (E-Mode) GaN FET Driver
Programmable Gate Driver Current
140V Internal LDO on VCCH input pin
Switching Frequency Range: 25kHz–300kHz
Automatic Valley Lockout from 1 to 6 cycles
Low Frequency Burst (1kHz)
Frequency Modulation to Reduce EMI Noise (Configurable using ZCS Resistor)
Internal Soft-Start
Integrated 700V HV Startup Circuit
Brown-In/Out Protections
X Capacitor Discharge Protection
AC Input OVP
Programmable Output OVP and UVP
Current Sense Resistor Short Protection
Internal and External OTP
Compact Package: SSOP9

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Evaluation Board

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EVB_SY22812CFVP

The EVB_SY22812CFVP is intended for evaluating High Frequency QR Flyback Controller with Input OVP

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12