AP3302 Series

Pure QR Mode Operation

Catalog

Pure QR Mode Operation

Part	Mounting Type	Voltage - Start Up	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Fault Protection	Output Isolation	Supplier Device Package	Internal Switch(s)	Frequency - Switching	Package / Case
Diodes Inc AP3302K6TR-G1	Surface Mount	15.8 V	Flyback	85 °C	-40 °C	Current Limiting Over Voltage	Isolated	SOT-26		120 kHz	SOT-23-6

Catalog

Pure QR Mode Operation

Key Features

• Very Low Start-Up Current

• Quasi-Resonant Operation with Valley Lock under All Line and Load Condition

• Non-Audible-Noise Quasi-Resonant Control

• Soft Start During Startup Process

• Frequency Fold Back for High Average Efficiency

• Constant Over Current Protection

• Secondary Winding Short Protection with FOCP

• Frequency Dithering for Reducing EMI

• VCC Maintain Mode

• Useful Pin Fault Protection: SENSE Pin Floating

• FB/Opto-Coupler Open/Short

• Comprehensive System Protection Feature:

• VCC Over Voltage Protection (VOVP)

• Over Load Protection (OLP)

• Brown Out Protection (BNO)

• Secondary Side OVP (SOVP) and UVP (SUVP)

• Mini Size Package of SOT26

Description

The AP3302 is a Peak-Current control, Quasi-Resonant (QR) PWM controller which is optimized for high performance, low standby power and cost effective offline flyback converters.