Linear LTC4000－1高压高性能多种电池充电解决方案

Linear公司的LTC4000-1是高压高性能转换器,能把许多外部补偿的DC/DC电源转换成全特性的电池充电器,并具有最大功率点控制.其最大功率点控制和太阳能板输入兼容,输入电压3V-36V,可编程充电精度±1%,可编程浮电压精度±0.25%,主要用在太阳能电池充电系统,高阻抗输入源如燃料电池或风能的电池充电器,工业电池设备或手持军用设备.本文介绍了LTC4000-1主要特性,框图和多种应用电路图.

The LTC®4000-1 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers with maximum power point control. In contrast to the LTC4000, the LTC4000-1 has an input voltage regulation loop instead of the input current regulation loop.

Features of the LTC4000-1’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.

The LTC4000-1 supports intelligent PowerPath control. An external PFET provides low loss reverse current protection.
..

查看全文