Datasheet > SD4870CTR

SD4870CTR

更新时间： 2024-02-21 08:13:52

品牌	Logo	应用领域
士兰微 - SILAN		控制器
页数	文件大小	规格书
8页	318K
描述
CURRENT MODE PWM CONTROLLER

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中文翻译

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数据手册

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SD4870CTR 数据手册

CURRENT MODE PWM CONTROLLER

DESCRIPTION

SD4870 is a current mode PWM controller IC for high performance,

low standby power offline flyback converter application.

In no load or light load condition, the IC operates in Light Load

Mode to reduce switching loss and improve efficiency.

Large value startup resistor could be used in the startup circuit to

minimize the standby current because of low startup current.

SD4870 offers complete protection functions including cycle-by-

cycle over current protection, over load protection, VDD input

voltage over voltage and under voltage protection, etc.

Excellent EMI performance is achieved with frequency shuffling

technique and soft switching control at the totem pole gate driver

output.

SOT-23-6L

DIP-8-300-2.54 SOP-8-225-1.27

APPLICATIONS

FEATURES

* Battery Chargers

* Adapters

* Frequency shuffling to improve EMI performance

* Light Load Mode for minimum standby power

* External programmable switching frequency

* 3uA low startup current

* Set-Top Box Power Supplies

* Internal LEB circuit

* VDD over voltage and under voltage protection

* Gate output maximum voltage clamp

* Over current protection

* Over load protection

* SOT-23-6L/SOP8/DIP8 package

ORDERING INFORMATION

Part No.

SD4870TR

Package

SOT-23-6L

Marking

Material

Pb free

Packing Type

4870

Tape & Reel

Tube

SD4870A

DIP-8-300-2.54

SOP-8-225-1.27

SD4870A

SD4870C

Pb free

SD4870C

SD4870CTR

Tube

Tape & Reel

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http://www.silan.com.cn

REV:1.0

2009.09.22

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