Texas Instruments TIC10024-Q1 Multiple Switch Detection Interface

Texas Instruments TIC10024-Q1 Multiple Switch Detection Interface (MSDI) is designed to detect external switch status in a 12V automotive system. The TIC10024-Q1 features a comparator with adjustable thresholds to monitor digital switches independently of the MCU. The device monitors 24 direct switch inputs, with ten inputs configurable to monitor switches connected to either ground or battery. Six unique wetting current settings can be programmed for each input to support different application scenarios. TIC10024-Q1 supports wake-up operation on all switch inputs to eliminate the need to continuously keep the MCU active, thus reducing the system's power consumption. The device offers integrated fault detection and ESD protection for improved system robustness. Texas Instruments TIC10024-Q1 supports two modes of operation: continuous and polling mode. In continuous mode, wetting current is supplied continuously. In polling mode, the wetting current is turned on periodically to sample the input status based on a programmable timer; thus, the system power consumption is significantly reduced.