The TIC12400 is an advanced Multiple Switch Detection Interface (MSDI) device designed to detect external switch statuses. The TIC12400 supports 24 direct inputs, with 10 inputs configurable to monitor digital I/O switches. 6 wetting current settings can be programmed for each input to support different application scenarios. The TIC12400 features an integrated 10-bit ADC to monitor multi-position analog switches and a comparator to monitor digital switches independently of the MCU. The device supports wake-up operation on all switch inputs to eliminate the need to keep the MCU active continuously, thus reducing power consumption of the system. The TIC12400 supports 2 modes of operations: continuous and polling mode. In continuous mode, wetting current is supplied continuously. In polling mode, wetting current is turned on periodically to sample the input status based on a programmable timer, thus the system power consumption is significantly reduced. The TIC12400 also offers various fault detection and diagnostic features for improved system robustness.
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|Part number||Order||Number of inputs||Operating voltage (Min) (V)||Operating voltage (Max) (V)||I/O voltage (Min) (V)||I/O voltage (Max) (V)||IO current (mA)||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||Interface||Features||Diagnostics||Logic voltage (Min) (V)||Logic voltage (Max) (V)|
|-40 to 105||HTSSOP | 38||38HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 38)||SPI||
Integrated 10-bit ADC
Configurable wetting current
Interrupt wake-up operation
Withstands load dump condition and reverse polarity condition
Wetting Current Diagnostic
||8||10||34||-0.3||36||0.2 to 5.2||-40 to 125||HTSSOP | 28||28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)||SPI||Over Temperature||Overtemperature diagnostics||2||0.8|