Datasheet > ACT355AUC-T

ACT355AUC-T

更新时间： 2024-11-18 05:34:47

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ACT355AUC-T深圳德江源电子 0755-82966416

ACT355A

Rev2, 13-Aug-08

ActivePSR^TMPrimary Switching Regulators

The ACT355A ensures safe operation with com-

plete protection against all fault conditions. Built-in

protection circuitry is provided for output short-

circuit, line under-voltage, and over-temperature

conditions.

FEATURES

• Multiple Patent-Pending Primary Side

Regulation Technology

• No Opto-coupler

The ACT355A ActivePSR is optimized for cost-

• Best Constant Voltage, Constant Current

sensitive applications, and utilizes Active-semi’s

proprietary primary-side feedback architecture to

provide accurate constant voltage, constant current

(CV/CC) regulation without the need of an opto-

coupler or reference device. Integrated line and

primary inductance compensation circuitry provides

accurate constant current operation despite wide

variations in line voltage and primary inductance.

Integrated output cord resistance compensation

further enhances output accuracy. These products

achieve excellent regulation and transient re-

sponse, yet requires less than 250mW of standby

power.

Over All Accuracy

• Minimum External Components

• Integrated Line and Primary Inductance

Compensation

• Integrated Output Cord Resistance Compen-

sation

• Line Under-Voltage Protection

• Short Circuit Protection

• Over Temperature Protection

• Flyback Topology in DCM Operation

The ACT355A is optimized for 2.5W to 3.5W appli-

cations (such as 5V/500mA to 5V/700mA CV/CC

chargers). It is available in space-saving 4-pin SIP-

4 and 5-pin SOT23-5 packages.

• Complies with all Global Energy Efficient

Regulations: 0.3W Standby Power and CEC

Average Efficiency

Figure 1:

• SIP-4 and SOT23-5 Packages

Typical Application Circuit

APPLICATIONS

• Chargers for Cell Phones, PDAs, MP3,

Portable Media Players, DSCs, and Other

Portable Devices and Appliances

HIGH VOLTAGE DC

CV/CC

N_P

N_S

OUTPUT

• RCC Adapter Replacements

• Linear Adapter Replacements

• Standby and Auxiliary Supplies

GENERAL DESCRIPTION

VDD

The ACT355A belongs to the high performance, mul-

tiple patent-pending ActivePSR^TMFamily of univer-

sal-input AC/DC off-line controllers for battery

charger and adapter applications. It is designed for

the flyback topology working in a discontinuous con-

duction mode (DCM). In addition to being the indus-

try’s most accurate primary side regulator, the

ACT355A meets all of the global energy efficiency

regulations (CEC, European Blue Angel, and US

Energy Star standards) while using very few external

components.

N_A

ACT355A

Innovative Power^TM

- 1 -

www.active-semi.com

Active-Semi Proprietary―For Authorized Recipients and Customers

ActivePSR^TMis a trademark of Active-Semi.

12 3 4 5 6 7...9

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与ACT355AUC-T相关器件

型号	品牌	获取价格	描述	数据表
ACT361	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT361_12	ACTIVE-SEMI	获取价格	High Performance ActivePSR Primary Switching Regulator
ACT361US-T	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT364	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT364_12	ACTIVE-SEMI	获取价格	High Performance ActivePSR Primary Switching Regulator
ACT364US-T	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT365	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT365_12	ACTIVE-SEMI	获取价格	High Performance ActivePSR Primary Switching Regulator
ACT365SH-T	ACTIVE-SEMI	获取价格	High Performance ActivePSR? Primary Switching Regulator
ACT366	ACTIVE-SEMI	获取价格	High Performance ActivePSRTM Primary Switching Regulator

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