■ Features

 Double lithium battery charge management

 Only need a few external compenents

 Pre-charge, constant current charging , constant

voltage charging mode

 Temperature detection

 Two charging status

 SOP-8 Package

■ General Description

XT9502 series is a double lithium battery charge

management chip. The chip includes a charge state

detection, the charging process,temperature detection and

so on . The chip also integrates a high-precision reference

voltage module in it. It uses the SOP-8 package.

XT9502 charge contains three modes: precharge,constant

current charging,constant voltage charging.Constant

current charging current is five times the pre-charge

current; when the voltage is lower than 6.5V into the

precharge mode; when the voltage is above 6.5V into the

conatant current charge mode, the charging current is five

times as the precharge, the charging current is dertermined

by an external resistor.

■ Applications

 Digital camera

 PDAS

 The phone lithium battery