Datasheet > AP3772H

AP3772H

更新时间： 2024-11-24 01:07:35

品牌	Logo	应用领域
BCDSEMI		/
页数	文件大小	规格书
12页	258K
描述
Low-Power Off-line Primary Side Regulation Controller

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AP3772H 数据手册

Preliminary Datasheet

Low-Power Off-line Primary Side Regulation Controller AP3772H

Features

General Description

•

Primary Side Control for Tight Constant Current

and Constant Voltage

30mW No-load Input Power

Excellent Dynamic Performance with AP4340

Bipolar Junction Transistor (BJT) Driving

Proprietary Adjustable Line Compensation for

CC Variation

Constant and Built-in 6%, 3% and No Cable

Voltage Drop Compensation

Enhanced Audio Noise Suppression

Open Circuit Protection

Over Voltage Protection

Short Circuit Protection

SOT-23-6 package

The AP3772H 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 AP3772H provides accurate constant voltage,

constant current (CV/CC) regulation without

requiring an opto-coupler and the secondary control

circuitry. It also eliminates the need of loop

compensation circuitry while maintaining good

stability. The AP3772H can achieve excellent

regulation and high average efficiency, yet meets

no-load consumption less than 30mW. It can also

achieve excellent dynamic performance while

maintaining 30mW standby power with AP4340.

•

Applications

The AP3772H has a built-in fixed cable voltage drop

compensation function. The magnitude of the cable

compensation voltage is set as 3% of the rated output

voltage. It also has an adjustable built-in line

compensation function to achieve tight CC.

•

Adapters/Chargers for Cell/cordless Phones,

PDAs, MP3 and Other Portable Devices

LED Driver

•

Standby and Auxiliary Power Supplies

The AP3772H is available in SOT-23-6 package.

SOT-23-6

Figure 1. Package Type of AP3772H

Dec. 2012 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

12 3 4 5 6 7...12

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