JAJSI23I September   2009  – October 2019 TMP431 , TMP432

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーション回路図
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Temperature Measurement Data
      2. 8.3.2 Beta Compensation
      3. 8.3.3 Series Resistance Cancellation
      4. 8.3.4 Differential Input Capacitance
      5. 8.3.5 Filtering
      6. 8.3.6 Sensor Fault
      7. 8.3.7 THERM and ALERT/THERM2
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode (SD)
      2. 8.4.2 One-Shot Mode
    5. 8.5 Programming
      1. 8.5.1  Serial Interface
      2. 8.5.2  Bus Overview
      3. 8.5.3  Timing Diagrams
      4. 8.5.4  Serial Bus Address
      5. 8.5.5  Read and Write Operations
      6. 8.5.6  Undervoltage Lockout
      7. 8.5.7  Timeout Function
      8. 8.5.8  High-Speed Mode
      9. 8.5.9  General Call Reset
      10. 8.5.10 SMBus Alert Function
    6. 8.6 Register Maps
      1. 8.6.1  Pointer Register
      2. 8.6.2  Temperature Registers
      3. 8.6.3  Limit Registers
      4. 8.6.4  Status Registers
        1. 8.6.4.1 TMP431 Status Register
        2. 8.6.4.2 TMP432 Status Register
      5. 8.6.5  Configuration Register 1
      6. 8.6.6  Configuration Register 2
      7. 8.6.7  Conversion Rate Register
      8. 8.6.8  Beta Compensation Configuration Register
      9. 8.6.9  η-Factor Correction Register
      10. 8.6.10 Software Reset
      11. 8.6.11 Consecutive Alert Register
      12. 8.6.12 Therm Hysteresis Register
      13. 8.6.13 Identification Registers
      14. 8.6.14 Open Status Register
      15. 8.6.15 Channel Mask Register
      16. 8.6.16 High Limit Status Register
      17. 8.6.17 Low Limit Status Register
      18. 8.6.18 THERM Limit Status Register
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 関連リンク
    2. 12.2 コミュニティ・リソース
    3. 12.3 商標
    4. 12.4 静電気放電に関する注意事項
    5. 12.5 Glossary
  13. 13メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

8.6.8 Beta Compensation Configuration Register

If the Beta Compensation Configuration Register is set to 1xxx (beta correction enabled) for a given remote channel at the beginning of each temperature conversion, the TMP43x automatically detect if the sensor is diode-connected or GND collector-connected, select the proper beta range, and measure the sensor temperature appropriately.

If the Beta Compensation Configuration Register is set to 0111 (beta correction disabled) for a given channel, the automatic detection is bypassed and the temperature is measured assuming a diode-connected sensor. A PNP transistor can continue to be GND collector-connected in this mode, but no beta compensation factor is applied. When the beta correction is set to 0111 or the sensor is diode-connected (base shorted to collector), the η-factor used by the TMP43x is 1.008. When the beta correction configuration is set to 1xxx (beta correction enabled) and the sensor is GND collector-connected (PNP collector to ground), the η-factor used by the TMP43x is 1.000. Table 10 shows the read value for the selected beta ranges and the appropriate η-factor used for each conversion.

Table 10. Beta Compensation Configuration Register

BCx3-BCx0 BETA RANGE DESCRIPTION η-FACTOR TIME
1000 Automatically selected range 0 (0.10 < beta < 0.18) 1 126 ms
1001 Automatically selected range 1 (0.16 < beta < 0.26) 1 126 ms
1010 Automatically selected range 2 (0.24 < beta < 0.43) 1 126 ms
1011 Automatically selected range 3 (0.35 < beta < 0.78) 1 126 ms
1100 Automatically selected range 4 (0.64 < beta < 1.8) 1 126 ms
1101 Automatically selected range 5 (1.4 < beta < 9) 1 126 ms
1110 Automatically selected range 6 (6.7 < beta < 40) 1 126 ms
1111 Automatically selected range 7 (beta > 27) 1 126 ms
1111 Automatically detected diode connected sensor 1.008 93 ms
0000 Manually selected range 0 (0.10 < beta < 0.5) 1 93 ms
0001 Manually selected range 1 (0.13 < beta < 1) 1 93 ms
0010 Manually selected range 2 (0.18 < beta < 2) 1 93 ms
0011 Manually selected range 3 (0.3 < beta < 25) 1 93 ms
0100 Manually selected range 4 (0.5 < beta < 50) 1 93 ms
0101 Manually selected range 5 (1.1 < beta < 100) 1 93 ms
0110 Manually selected range 6 (2.4 < beta < 150) 1 93 ms
0111 Manually disabled beta correction 1.008 93 ms