[原创] ADI AD8452模拟前端控制器和SMPS PWM驱动器解决方案

ADI公司的AD8452是单一的硅芯片平台,集成了精密模拟前端控制器和开关电源(SMPS)脉宽调制器(PWM)驱动器,以实现大规模电池测试和化成生产.精密仪器放大器以优于 ±0.1% 的精度测量电池充电/放电电流和测量电池电压.具有供出色的性能,功能和总体可靠性,简化了设计,工作温度范围为−40℃至+85℃,主要用在电池化成和测试,具有回收功能的高效电池测试系统和电池调节(充电和放电)系统.本文介绍了AD8452主要特性,功能框图和应用电路,以及评估板AD8452-EVALZ主要特性,测试建立图,电路图和材料清单与PCB设计图.

The AD8452 combines a precision analog front-end controllerand switch mode power supply (SMPS), pulse-width modulator(PWM) driver into a single silicon platform for high volumebattery testing and formation manufacturing. A precisioninstrumentation amplifier (in-amp) measures the battery charge/discharge current to better than ±0.1% accuracy, while an equallyaccurate difference amplifier measures the battery voltage.

Internal laser trimmed resistor networks establish the in-ampand difference amplifier gains (66 V/V and 0.4 V/V, respectively),and stabilize the AD8452 performance across the ratedoperating temperature range.
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