S-8426A数据手册集成电路（IC）的电源控制器监视器规格书PDF

描述 Description

The S-8426A Series is a CMOS IC designed for use in the switching circuits of primary and backup power supplies on a single chip. It consists of two voltage regulators, three voltage detectors, a power supply switch and its controller, as well as other functions.
In addition to the switching function between the primary and backup power supply, the S-8426A Series can provide the micro controllers with three types of voltage detection output signals corresponding to the power supply voltage.
Moreover adopting a special sequence for switch control enables the effective use of the backup power supply, making this IC ideal for configuring a backup system.

特性 Features

·低消耗电流
15µA 最大值 ( Vin=6V，通常工作状态时)
4.5µA 最大值 (备用时)
·电压调节器
·输出电压精度
±2%
·输出电压
2.3~5.4V (以0.1V为进阶单位来独立选择)
·内置3种 (CS, /PREEND, /RESET)电压检测器
·检测电压精度
±2%
·检测电压
2.4~5.3V (以0.1V为进阶单位来选择)
(CS电压检测器)
1.7~3.4V (以0.1V为进阶单位来选择)
(/PREEND, /RESET电压检测器)
·能以单片方式构成主电源和备用电源的切换电路
·能有效利用备用电源
·采用特殊程序
在主电源电压未达到开关单元的初始工作电压时，不会输出备用电压。
·无铅产品

应用 Application

·摄录一体机
·数码相机
·存储器卡
·其他SRAM备用装置