WS2268 datasheet(1/8 Pages) WINSEMI

部品番号	WS2268

部品情報	Primary Side AC/DC Controller

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メーカー	WINSEMI [Shenzhen Winsemi Microelectronics Co., Ltd]

ホームページ	http://www.winsemi.com

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Rev. 2 Jan.2012

WS2268

T21-2

Primary Side AC/DC Controller

Features

■ Lower no-load power

■ Lower start-up current

■ Built-in cable compensation

■ Built-in peak current compensation

■ Random frequency modulation to reduce system EMI

■ Built-in leading edge blanking

■ Current limited protection in each cycle

■ Over voltage protection

■ Open circuit protection

■ Under voltage lockout

Application

■ Adapters/Chargers for Cell/Cordless phones, PDAs, MP3

and other portable apparatus

■ Standby and Auxiliary power supplies

Gerneral Description

The WS2268 is a high performance AC/DC power

supply controller for battery charger and adapter

applications. The device uses Pulse Frequency

Modulation (PFM) method to build discontinuous

conduction mode (DCM) flyback power supplies.

The WS2268 provides accurate constant voltage,

constant current (CV/CC) regulation without requiring

the opto-coupler and the secondary control circuitry.

It also eliminates the need of loop compensation

circuitry while maintaining stability.

The WS2268 achieves excellent regulation and

high

power

efficiency,

the

no-load

power

consumption is less than 100mW.

The WS2268 is available in SOP8 package.

Typical Application

WS2268

同様の部品番号 - WS2268

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