ZHCSGR5 September   2017 TIC12400

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Pin Configuration and Functions
  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. Parameter Measurement Information
  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/Sink Selection
        2. 8.3.8.2 Input Mode Selection
        3. 8.3.8.3 Input Enable Selection
        4. 8.3.8.4 Thresholds Adjustment
        5. 8.3.8.5 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
        1. 8.4.2.1 Standard Polling
        2. 8.4.2.2 Matrix Polling
      3. 8.4.3 Additional Features
        1. 8.4.3.1 Clean Current Polling (CCP)
        2. 8.4.3.2 Wetting Current Auto-Scaling
        3. 8.4.3.3 VS Measurement
        4. 8.4.3.4 Wetting Current Diagnostic
        5. 8.4.3.5 ADC Self-Diagnostic
    5. 8.5 Programming
      1. 8.5.1 SPI Communication Interface Buses
        1. 8.5.1.1 Chip Select (CS)
        2. 8.5.1.2 System Clock (SCLK)
        3. 8.5.1.3 Slave In (SI)
        4. 8.5.1.4 Slave Out (SO)
      2. 8.5.2 SPI Sequence
        1. 8.5.2.1 Read Operation
        2. 8.5.2.2 Write Operation
        3. 8.5.2.3 Status Flag
    6. 8.6 Register Maps
      1. 8.6.1  DEVICE_ID register (Offset = 1h) [reset = 20h]
      2. 8.6.2  INT_STAT Register (Offset = 2h) [reset = 1h]
      3. 8.6.3  CRC Register (Offset = 3h) [reset = FFFFh]
      4. 8.6.4  IN_STAT_MISC Register (Offset = 4h) [reset = 0h]
      5. 8.6.5  IN_STAT_COMP Register (Offset = 5h) [reset = 0h]
      6. 8.6.6  IN_STAT_ADC0 Register (Offset = 6h) [reset = 0h]
      7. 8.6.7  IN_STAT_ADC1 Register (Offset = 7h) [reset = 0h]
      8. 8.6.8  IN_STAT_MATRIX0 Register (Offset = 8h) [reset = 0h]
      9. 8.6.9  IN_STAT_MATRIX1 Register (Offset = 9h) [reset = 0h]
      10. 8.6.10 ANA_STAT0 Register (Offset = Ah) [reset = 0h]
      11. 8.6.11 ANA_STAT1 Register (Offset = Bh) [reset = 0h]
      12. 8.6.12 ANA_STAT2 Register (Offset = Ch) [reset = 0h]
      13. 8.6.13 ANA_STAT3 Register (Offset = Dh) [reset = 0h]
      14. 8.6.14 ANA_STAT4 Register (Offset = Eh) [reset = 0h]
      15. 8.6.15 ANA_STAT5 Register (Offset = Fh) [reset = 0h]
      16. 8.6.16 ANA_STAT6 Register (Offset = 10h) [reset = 0h]
      17. 8.6.17 ANA_STAT7 Register (Offset = 11h) [reset = 0h]
      18. 8.6.18 ANA_STAT8 Register (Offset = 12h) [reset = 0h]
      19. 8.6.19 ANA_STAT9 Register (Offset = 13h) [reset = 0h]
      20. 8.6.20 ANA_STAT10 Register (Offset = 14h) [reset = 0h]
      21. 8.6.21 ANA_STAT11 Register (Offset = 15h) [reset = 0h]
      22. 8.6.22 ANA_STAT12 Register (Offset = 16h) [reset = 0h]
      23. 8.6.23 CONFIG Register (Offset = 1Ah) [reset = 0h]
      24. 8.6.24 IN_EN Register (Offset = 1Bh) [reset = 0h]
      25. 8.6.25 CS_SELECT Register (Offset = 1Ch) [reset = 0h]
      26. 8.6.26 WC_CFG0 Register (Offset = 1Dh) [reset = 0h]
      27. 8.6.27 WC_CFG1 Register (Offset = 1Eh) [reset = 0h]
      28. 8.6.28 CCP_CFG0 Register (Offset = 1Fh) [reset = 0h]
      29. 8.6.29 CCP_CFG1 Register (Offset = 20h) [reset = 0h]
      30. 8.6.30 THRES_COMP Register (Offset = 21h) [reset = 0h]
      31. 8.6.31 INT_EN_COMP1 Register (Offset = 22h) [reset = 0h]
      32. 8.6.32 INT_EN_COMP2 Register (Offset = 23h) [reset = 0h]
      33. 8.6.33 INT_EN_CFG0 Register (Offset = 24h) [reset = 0h]
      34. 8.6.34 INT_EN_CFG1 Register (Offset = 25h) [reset = 0h]
      35. 8.6.35 INT_EN_CFG2 Register (Offset = 26h) [reset = 0h]
      36. 8.6.36 INT_EN_CFG3 Register (Offset = 27h) [reset = 0h]
      37. 8.6.37 INT_EN_CFG4 Register (Offset = 28h) [reset = 0h]
      38. 8.6.38 THRES_CFG0 Register (Offset = 29h) [reset = 0h]
      39. 8.6.39 THRES_CFG1 Register (Offset = 2Ah) [reset = 0h]
      40. 8.6.40 THRES_CFG2 Register (Offset = 2Bh) [reset = 0h]
      41. 8.6.41 THRES_CFG3 Register (Offset = 2Ch) [reset = X]
      42. 8.6.42 THRES_CFG4 Register (Offset = 2Dh) [reset = X]
      43. 8.6.43 THRESMAP_CFG0 Register (Offset = 2Eh) [reset = 0h]
      44. 8.6.44 THRESMAP_CFG1 Register (Offset = 2Fh) [reset = 0h]
      45. 8.6.45 THRESMAP_CFG2 Register (Offset = 30h) [reset = 0h]
      46. 8.6.46 Matrix Register (Offset = 31h) [reset = 0h]
      47. 8.6.47 Mode Register (Offset = 32h) [reset = 0h]
    7. 8.7 Programming Guidelines
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Digital IO Switches and Analog Voltage Monitoring
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 接收文档更新通知
    2. 12.2 社区资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

特性

  • 工作电源电压 (VS) 范围为 6.5V 至 35V,具有过压和欠压警告
  • 监控多达 24 路直接开关输入,并可配置其中 10 路输入以监控接地或连接到电源的开关
  • 开关输入可接受 40V 电压和低至 -24V 的反向供电条件
  • 6 种可配置的湿性电流设置:
    (0mA、1mA、2mA、5mA、10mA 和 15mA)
  • 适用于多位模拟开关监控的 10 位集成 ADC
  • 适用于输入监控并具有 4 个可编程阈值的集成比较器
  • 在轮询模式下具有超低工作电流:
    典型值为 68μA(tPOLL = 64ms,tPOLL_ACT = 128μs,
    全部 24 路输入均处于活动状态,比较器模式,所有开关均打开)
  • 使用 3.3V/5V 串行外设接口 (SPI) 协议直接与 MCU 连接
  • 可产生中断来支持所有输入的唤醒操作
  • 集成电源和温度传感
  • 采用适当的外部组件根据 IEC 61000-4-2 在输入引脚上实现 ±8kV 接触放电 ESD 保护
  • 38 引脚 TSSOP 封装

应用

  • 信号测量
  • PLC、DCS 和 PAC
  • 仪表

说明

TIC12400 是一款先进的多开关检测接口 (MSDI) 器件,用于检测外部开关状态。TIC12400 支持 24 路直接输入,并可配置其中 10 路输入以监控数字 I/O 开关。可为每路输入设定 6 种湿性电流设置,从而支持不同的应用场景。TIC12400 采用了 集成的 10 位 ADC 对多位模拟开关进行监控,并采用比较器来独立于 MCU 对数字开关进行监控。该器件支持所有开关输入的唤醒操作,因此无需持续使 MCU 保持活动状态,进而可降低系统功耗。TIC12400 支持 2 种工作模式:连续模式和轮询模式。连续模式下将连续提供湿性电流。轮询模式下将根据可编程计时器来定期接通湿性电流以对输入状态进行采样,从而显著降低系统功耗。TIC12400 还提供各种故障检测和诊断 特性 以提高系统稳健性。

器件信息(1)

器件型号 封装 封装尺寸(标称值)
TIC12400 TSSOP (38) 9.70 mm x 4.40 mm
  1. 如需了解所有可用封装,请参阅产品说明书末尾的可订购产品附录。

简化电路原理图

TIC12400 App_diagram.gif