DS2782参考设计电路|独立式电量计应用电路
DS2782特性:精确的电压、温度和电流测量系统;准确、稳定的内部时基;精确的电池低状态报警;具有可编程从地址的工业标准两线式接口
DS2782典型应用范围:3G多媒体无线手机;数码相机;手持式PC数据终端;笔记本电脑
DS2782参考设计应用电路:
图1DS2782内部结构图
TheDS2782 measures voltage, temperature and current, and estimates available capacity for rechargeable lithium ion and lithium-ion polymer batteries. Cell characteristics and application parameters used in the calculations are stored in onchip EEPROM.
图2DS2782参考设计图
TheDS2782 operates directly from 2.5V to 4.5V and supports single cell Lithium-ion battery packs. As shown in Figure 3, the DS2782 accommodates multicell applications by adding a voltage regulator for VDD and voltage divider for VIN.
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