SN03ACPA PDF Datasheet – Factor Flyback PWM Controller

Part Number: SN03ACPA

Function: High Power Factor Flyback PWM Controller

Package: SOP, DIP 8 Pin Type

Manufacturer: On-Bright Electronics


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SN03ACPA pdf controller


The SN03ACPA is a high power factor flyback PWM controller special for lighting applications.
SN03A features an internal start-up timer for stand-alone applications, an analog multiplier with for power factor correction (PFC), zero current detector (ZCD) to ensure TM operation, a current sensing comparator with built-in leading-edge blanking, and a totem pole output ideally suited for driving a power MOSFET.


1. Low Start-up Current and Operating Current

2. Cycle-by-Cycle Current Limiting

3. Internal Leading Edge Blanking

4. Analog multiplier for Power Factor Correction

5. Internal Startup Timer for Stand-alone Applications

6. Trimmed 1.5% Internal Band gap Reference

7. Under Voltage Lockout with Hysteresis

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SN03ACPA pinout datasheet

A Flyback PWM (Pulse Width Modulation) Controller is an essential component in a flyback converter, which is a type of switched-mode power supply (SMPS) topology commonly used for power conversion and voltage regulation. The flyback converter is known for its ability to provide galvanic isolation between the input and output, making it suitable for a wide range of applications, including power adapters, battery chargers, and LED drivers.



1. Single Stage High PF Flyback AC/DC SMPS

2. LED Lighting Power


Other data sheets are available within the file: SN03AAP, SN03ACP


SN03ACPA PDF Datasheet