SY22817AABC (SY5007AABC)

Flyback Controller with Primary Side CC/CV Control

SY22817AABC Flyback Controller with Primary Side CC/CV Control Datasheet

Parameters
Features
Description

Part number	SY22817AABC
Pout (max) (W)	75
HV startup	NO
Operation mode	QR
Driving FETs type	MOS
No load loss (mW)	<75
Switching frequency (min)(kHz)	0.5
Switching frequency (max)(kHz)	125
Features	PSR CC/CV,Cable compensation
Package	SOT23-6
Operating temperature range(°C)	-40 to 125
Functional safety category

Tight PSR CC/CV Regulation Over Entire Operating Range
QR-mode Operation for High Efficiency
PWM/PFM Control for High Average Efficiency
Fast Dynamic Load Transient Response
Cable Compensation for Better Load Regulation
Low Start Up Current: 5μA Max
Minimum Frequency Limitation 500Hz
Reliable Protections for OVP, UVP, SCP, OTP, OCP
Reliable Protections for Safety Requirement
Maximum Switching Frequency Limitation 125kHz
RoHS Compliant and Halogen Free
Compact Package: SOT23-6

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Evaluation Board

Photo of evaluation board
Photo of evaluation board

EVB_SY22817A

The EVB_SY22817A is to evaluate Flyback Controller with Primary Side CV/CC Control SY22817A.

Technical Documentation

Title	Date
Silergy_Catalog_Q3_2026	2026-11-04