The TIC12400-Q1 is an advanced Multiple Switch Detection Interface (MSDI) designed to detect external switch status in a 12-V automotive system. The TIC12400-Q1 features an integrated 10-bit ADC to monitor multi-position analog switches and a comparator to monitor digital switches independently of the MCU. Detection thresholds can be programmed for the ADC and the comparator to support various switch topologies and system non-idealities. The device monitors 24 direct switch inputs, with 10 inputs configurable to monitor switches connected to either ground or battery. 6 unique wetting current settings can be programmed for each input to support different application scenarios. 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-Q1 also offers integrated fault detection, ESD protection, and diagnostic functions for improved system robustness. The TIC12400-Q1 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.
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| 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) |
| TIC12400-Q1 | TIC10024-Q1 |
|---|---|
| 24 | 24 |
| 4.5 | 4.5 |
| 35 | 35 |
| -24 | -24 |
| 40 | 40 |
|
1 2 5 10 15 |
1 2 5 10 15 |
| -40 to 125 | -40 to 125 |
| HTSSOP | 38 | HTSSOP | 38 |
| 38HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 38) | 38HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 38) |
| SPI | SPI |
|
Integrated 10-bit ADC Polling mode Configurable wetting current Overvoltage warning Undervoltage warning SPI Interrupt wake-up operation Withstands load dump condition and reverse polarity condition |
Polling mode Configurable wetting current Overvoltage warning Undervoltage warning SPI Interrupt wake-up operation Withstands load dump condition and reverse polarity condition |
|
Wetting Current Diagnostic ADC Self-Diagnostic |
|
| 3 | 3 |
| 5.5 | 5.5 |
| Order now | Order now |
