IntersilISL78693单颗锂电池充电完整解决方案
Intersil公司的ISL78693是输入电压低至2.65V的单颗锂电池充电器,能和各种的AC适配器或USB端口配合工作.器件集成了功率晶体管和电流传感器,反向漏电流700nA,1%初始电压精度,可编CC电流高达1A, AEC-Q100 认证,主要用在汽车系统,eCall系统和电池备份系统.本文介绍了ISL78693主要特性,框图和应用电路,以及评估板ISL78693EVAL1Z特性和指标,电路图,材料清单和PCB设计图.
The ISL78693 is an integrated single-cell Li-ion or Li-polymer battery charger capable of operating with an input voltage as low as 2.65V (cold crank case). This charger is designed to work with various types of AC adapters or a USB port.
The ISL78693 operates as a linear charger when the AC adapter is a voltage source. The battery is charged in a Constant Current/Constant Voltage (CC/CV) profile. The charge current is programmable with an external resistor up to 1A.
The ISL78693 can also work with a current-limited adapter to minimize the thermal dissipation...
