Linear LTC4000高压电池充电解决方案

Linear公司的LTC4000是高压高性能电池充电控制器,输入和输出电压宽达3V到60V,输入和充电电流精度在±1%,可编程浮电压精度±0.25%,可选择的定时器和终止充电电流,采用NTC热电阻的温度补偿充电,自动再充电,不良电池检测和用于深度放电电池的C/10涓流充电以及状态指示输出.主要用在大功率电池充电系统,高性能手持仪表,笔记本/亚笔记本电脑等.本文介绍了LTC4000主要特性,方框图, 用于三个LiFePO4电池的48-10.8V/10A降压充电器电路图以及用于单个和多个锂离子电池充电器电路图.

The LTC®4000 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers. Features of the LTC4000’s battery charger include: accurate (±0.25%) programmable float voltage, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. The battery charger also includes precision current sensing that allows lower sense voltages for high current applications.
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