SCPS268A September   2017  – February 2022 TIC10024-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  VS Pin
      2. 8.3.2  VDD Pin
      3. 8.3.3  Device Initialization
      4. 8.3.4  Device Trigger
      5. 8.3.5  Device Reset
        1. 8.3.5.1 VS Supply POR
        2. 8.3.5.2 Hardware Reset
        3. 8.3.5.3 Software Reset
      6. 8.3.6  VS Under-Voltage (UV) Condition
      7. 8.3.7  VS Over-Voltage (OV) Condition
      8. 8.3.8  Switch Inputs Settings
        1. 8.3.8.1 Input Current Source and Sink Selection
        2. 8.3.8.2 Input Enable Selection
        3. 8.3.8.3 Thresholds Adjustment
        4. 8.3.8.4 Wetting Current Configuration
      9. 8.3.9  Interrupt Generation and INT Assertion
        1. 8.3.9.1 INT Pin Assertion Scheme
        2. 8.3.9.2 Interrupt Idle Time (tINT_IDLE) Time
        3. 8.3.9.3 Microcontroller Wake-Up
        4. 8.3.9.4 Interrupt Enable / Disable And Interrupt Generation Conditions
        5. 8.3.9.5 Detection Filter
      10. 8.3.10 Temperature Monitor
        1. 8.3.10.1 Temperature Warning (TW)
        2. 8.3.10.2 Temperature Shutdown (TSD)
      11. 8.3.11 Parity Check And Parity Generation
      12. 8.3.12 Cyclic Redundancy Check (CRC)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Continuous Mode
      2. 8.4.2 Polling Mode
      3. 8.4.3 Additional Features
        1. 8.4.3.1 Clean Current Polling (CCP)
        2. 8.4.3.2 Wetting Current Auto-Scaling
  9. 9 Programming
    1. 9.1 SPI Communication Interface Buses
      1. 9.1.1 Chip Select ( CS)
      2. 9.1.2 System Clock (SCLK)
      3. 9.1.3 Slave In (SI)
      4. 9.1.4 Slave Out (SO)
    2. 9.2 SPI Sequence
      1. 9.2.1 Read Operation
      2. 9.2.2 Write Operation
      3. 9.2.3 Status Flag
    3. 9.3 Programming Guidelines
    4. 9.4 Register Maps
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Digital Switch Detection in Automotive Body Control Module
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
    3. 10.3 Systems Examples
      1. 10.3.1 Using TIC10024-Q1 in a 12 V Automotive System
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Community Resources
    3. 13.3 Trademarks
  14. 14Mechanical, Packaging, and Orderable Information

8.3.8 Switch Inputs Settings

IN0 to IN23 are inputs connected to external mechanical switches. The switch status of each input, whether open or closed, is indicated by the status registers. Table 8-1 below describes various settings that can be configured for each input. Note some settings are shared between multiple inputs. It is required to first stop device operation by setting the TRIGGER bit low in the register CONFIG before making any configuration changes, as described in Device Trigger.

Table 8-1 TIC10024-Q1 Wetting Current and Threshold Setting Details
InputThresholdWetting CurrentCurrent Source (CSO) / Current Sink (CSI)Supported Switch Type
IN0THRES_COMP_IN0_IN3WC_IN0_IN1CSO
CSI		Switch to GND
Switch to VBAT
IN1CSO
CSI		Switch to GND
Switch to VBAT
IN2WC_IN2_IN3CSO
CSI		Switch to GND
Switch to VBAT
IN3CSO
CSI		Switch to GND
Switch to VBAT
IN4THRES_COMP_IN4_IN7WC_IN4CSO
CSI		Switch to GND
Switch to VBAT
IN5WC_IN5CSO
CSI		Switch to GND
Switch to VBAT
IN6WC_IN6_IN7CSO
CSI		Switch to GND
Switch to VBAT
IN7CSO
CSI		Switch to GND
Switch to VBAT
IN8THRES_COMP_IN8_IN11WC_IN8_IN9CSO
CSI		Switch to GND
Switch to VBAT
IN9CSO
CSI		Switch to GND
Switch to VBAT
IN10WC_IN10CSOSwitch to GND
IN11WC_IN11CSOSwitch to GND
IN12THRES_COMP_IN12_IN15WC_IN12_13CSOSwitch to GND
IN13CSOSwitch to GND
IN14WC_IN14_15CSOSwitch to GND
IN15CSOSwitch to GND
IN16THRES_COMP_IN16_IN19WC_IN16_17CSOSwitch to GND
IN17CSOSwitch to GND
IN18WC_IN18_19CSOSwitch to GND
IN19CSOSwitch to GND
IN20THRES_COMP_IN20_IN23WC_IN20_21CSOSwitch to GND
IN21CSOSwitch to GND
IN22WC_IN22CSOSwitch to GND
IN23WC_IN23CSOSwitch to GND