CXA3809M PDF Datasheet – AC-DC Controller

An AC-DC controller is an electronic device that regulates and controls the conversion of alternating current (AC) power to direct current (DC) power. It plays a crucial role in power supply circuits, where it manages the process of converting high-voltage AC power from the mains into the low-voltage, regulated DC power required by various electronic devices.

Part Number: CXA3809M

Function: AC-DC Controller

Package: SOP 24 Pin Type

Manufacturer: Sony

Images:CXA3809M pdf controller



The CXA3809M has optimum configuration to realize various power supply circuits easily and compactly by including Power-factor correction, resonant controller and various protection function in one package. (Applications: Power supply circuit, etc.)


1. Power-factor correction

(1) Multiplierless critical conduction mode (CRM) control

(2) Supports W/W input

(3) Restart timer

(4) Maximum frequency limit (during overcurrent detection)

(5) Continuous overcurrent detection protection function

2. Resonant controller

(1) Timer-latch over current protection

(2) Soft start function

(3) Adjustment minimum frequency limit

(4) Pulse over current load detection

(5) Out of resonance prevention function at start-up

3. Common

(1) Adjacent 2-pin short protection

(2) Various protection functions including overvoltage and overcurrent

(3) AC off detection

(4) PFC-OK signal output […]

CXA3809M datasheet

CXA3809M PDF Datasheet