Datasheet > PS223

PS223

更新时间： 2022-12-21 15:34:57

品牌	Logo	应用领域
点晶 - SITI		监控
页数	文件大小	规格书
11页	133K
描述
4-Channel Secondary Monitoring IC With 4-Channel OCP And an Additional OTP

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PS223 数据手册

點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

PS223

4-Channel Secondary Monitoring IC

With 4-Channel OCP

And an Additional OTP

General Description

PS223 is specially designed for switching power supply system. Four important

functions of PS223 are the followings: over-voltage protection, over-current protection,

under-voltage protection and power good signal generating.

OVP/UVP (Over-Voltage/Under-Voltage Protection) monitors 3.3V, 5V and double

12V to protect our power supply and PC, FPO/ goes to high when one of these supply

voltages exceeds their normal operation voltage range.

OCP(Over Current Protection) monitors IS33, IS5, IS12A, IS12B input current

sense. An adjustable over-current condition composed of Iref and “protection current

range resistor” helps users design OCP easily.

An additional OTP channel helps users monitor if there have any over temperature

occur.

Power good signal generating notifies personal computer when power supply is

ready or power supply is going to shutdown, therefore it can provide a reliable power

supply environment.

Features

• Over/Under-voltage protection and lock out

• Over-current protection and lock out

• Over-temperature protection

• Fault protection output with open drain output stage

• Open drain power good output signal for power good input

• Built-in 300mS power good delay

• AC on 75ms delay for UV/OC protection

• 38mS PSON/ control de-bounce

• 73uS de-bounce for noise immunity

• Wide power supply range

• Special care for AC power off

4-Channel Secondary Monitoring IC

Version：A.006

-1-

123 4 5 6 7...11

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