The TIC12400-Q1 is an advanced Multiple Switch Detection Interface (MSDI) designed todetect external switch status in a 12-V automotive system. The TIC12400-Q1 features an integrated10-bit ADC to monitor multi-position analog switches and a comparator to monitor digital switchesindependently of the MCU. Detection thresholds can be programmed for the ADC and the comparator tosupport various switch topologies and system non-idealities. The device monitors 24 direct switchinputs, with 10 inputs configurable to monitor switches connected to either ground or battery. 6unique wetting current settings can be programmed for each input to support different applicationscenarios. The device supports wake-up operation on all switch inputs to eliminate the need to keepthe MCU active continuously, thus reducing power consumption of the system. The TIC12400-Q1 alsooffers integrated fault detection, ESD protection, and diagnostic functions for improved systemrobustness. The TIC12400-Q1 supports 2 modes of operations: continuous and polling mode. Incontinuous mode, wetting current is supplied continuously. In polling mode, wetting current isturned on periodically to sample the input status based on a programmable timer, thus the systempower consumption is significantly reduced.