TI TIC12400－Q1 12V汽车系统24路输入开关检测方案
TI公司的TIC12400-Q1是用在12V汽车系统的24路输入多路开关检测接口(MSDI)器件,集成了10位ADC来检测模拟开关多种位置,集成的比较器用来检测MCU的数字开关,检测阈值可编程,以支持各种开关拓扑和系统非理想性,工作温度–40℃ 到125℃,支持连续模式和轮询模式,主要用在12V汽车系统中的车体控制和网关,汽车照明,加热和冷却,电动座椅和镜子.本文介绍了TIC12400-Q1主要特性,框图和应用电路,以及评估模块TIC12400 EVM特性,框图,主板和开关板电路图,材料清单.
The TIC12400-Q1 is an advanced Multiple SwitchDetection Interface (MSDI) designed to detectexternal switch status in a 12-V automotive system.The TIC12400-Q1 features an integrated 10-bit ADCto monitor multi-position analog switches and acomparator to monitor digital switches independentlyof the MCU. Detection thresholds can beprogrammed for the ADC and the comparator tosupport various switch topologies and system nonidealities.
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