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EM8931S

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
杰力科技 - EXCELLIANCE		/
页数	文件大小	规格书
10页	256K
描述
Cost Effective PWM Forward Controller

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EM8931S 数据手册

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EM8931

Cost Effective PWM Forward Controller

General Description

Features

EM8931 is a high performance, low startup

current, low cost, current mode PWM controller.

The EM8931 integrates functions of Soft Start(SS),

Under Voltage Lockout(UVLO), Leading Edge

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Ultra Low Start Up Current (6uA)

Current Mode Control

Soft Start Function

Built-in Slope Compensation

Internal Leading-edge Blanking

UVLO

Blanking(LEB),

internal

Over

Temperature

Protection(OTP), internal slope compensation. The

EM8931 also features more protection like Over

Load

Protection(OLP)

and

Over

Voltage

Over Voltage Protection (OVP) on VDD pin

Over Load Protection (OLP)

Protection(OVP) to prevent circuit damage

occurred under abnormal conditions.

The EM8931 provides the users a superior

AC/DC power application of high efficiency,

excellent EMI performance, low external

component counts and lower cost solution.

Cycle-by-cycle Current Limit

Feedback Open Protection

Internal Over Temperature Protection (OTP)

Constant Output Power Limit (Full AC Input

Range)

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Excellent EMI performance

Ordering Information

Applications

Part Number

EM8931J

Package

Remark

SOT-23-6

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Switching AC/DC Adaptor and charger

Open-Frame SMPS

EM8931S

DIP-8

Typical Application Circuit

AC

INPUT

EMI

Filter

+

DC

OUTPUT

VDD

RT

GATE

CS

EM8931

COMP

GꢀD

2012/4/13

Rev.A.1

1

12 3 4 5 6 7...10

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