ZHCS490B November   2011  – December 2018 TMP104

PRODUCTION DATA.  

  1. 1特性
  2. 2应用
  3. 3说明
    1.     Device Images
      1.      典型应用
  4. 4修订历史记录
  5. 5Pin Configuration and Functions
    1.     Pin Functions
  6. 6Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Thermal Information
    4. 6.4 Electrical Characteristics
    5. 6.5 Typical Characteristics
  7. 7Detailed Description
    1. 7.1 Overview
    2. 7.2 Feature Description
      1. 7.2.1 Timeout Function
      2. 7.2.2 Noise
      3. 7.2.3 SMAART Wire™ Interface Timing Specifications
    3. 7.3 Programming
      1. 7.3.1 Communication Protocol
      2. 7.3.2 Command Register
      3. 7.3.3 Global Initialization and Address Assignment Sequence
      4. 7.3.4 Global Read and Write
      5. 7.3.5 Global Clear Interrupt
      6. 7.3.6 Global Software Reset
      7. 7.3.7 Individual Read and Write
    4. 7.4 Register Maps
      1. 7.4.1 Temperature Register
      2. 7.4.2 Configuration Register
        1. 7.4.2.1 Temperature Watchdog Function (FH, FL)
        2. 7.4.2.2 Conversion Rate (CR1, CR0)
        3. 7.4.2.3 Conversion Modes
          1. 7.4.2.3.1 Shutdown Mode (M1 = 0, M0 = 0)
          2. 7.4.2.3.2 One-Shot Mode (M1 = 0, M0 = 1)
          3. 7.4.2.3.3 Continuous Conversion Mode (M1 = 1)
        4. 7.4.2.4 Interrupt Functionality (INT_EN)
      3. 7.4.3 Temperature Limit Registers
  8. 8器件和文档支持
    1. 8.1 接收文档更新通知
    2. 8.2 社区资源
    3. 8.3 商标
    4. 8.4 静电放电警告
    5. 8.5 术语表
  9. 9机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YFF|4
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.4.2.1 Temperature Watchdog Function (FH, FL)

The TMP104 contains a watchdog function that monitors device temperature and compares the result to the values stored in the temperature limit registers (THIGH and TLOW) in order to determine if the device temperature is within these set limits. If the temperature of the TMP104 becomes greater than the value in the THIGH register, then the flag-high bit (FH) in the Configuration Register is set to '1'. If the temperature falls below value in the TLOW register, then the flag-low bit (FL) is set to '1'. If both flag bits remain '0', then the temperature is within the temperature window set by the temperature limit registers, as shown in Figure 13.

TMP104 ai_output_transfer_bos564.gifFigure 13. Temperature Flag Functional Diagram

The latch bit (LC) in the Configuration Register is used to latch the value of the flag bits (FH and FL) until the master issues a read command to the Configuration Register. The flag bits are set to '0' if a read command is received by the TMP104, or if LC = 0 and the temperature is within the temperature limits. The power-on default values for these bits are FH = 0, FL = 0, and LC = 0.