ZHCSGB8C May   2017  – October 2019 TMP464

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用电路原理图
  4. 4 修订历史记录
  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 Two-Wire Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Temperature Measurement Data
      2. 7.3.2 Series Resistance Cancellation
      3. 7.3.3 Differential Input Capacitance
      4. 7.3.4 Sensor Fault
      5. 7.3.5 THERM Functions
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode (SD)
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
        1. 7.5.1.1 Bus Overview
        2. 7.5.1.2 Bus Definitions
        3. 7.5.1.3 Serial Bus Address
        4. 7.5.1.4 Read and Write Operations
          1. 7.5.1.4.1 Single Register Reads
          2. 7.5.1.4.2 Block Register Reads
        5. 7.5.1.5 Timeout Function
        6. 7.5.1.6 High-Speed Mode
      2. 7.5.2 TMP464 Register Reset
      3. 7.5.3 Lock Register
    6. 7.6 Register Maps
      1. 7.6.1 Register Information
        1. 7.6.1.1  Pointer Register
        2. 7.6.1.2  Local and Remote Temperature Value Registers
        3. 7.6.1.3  Software Reset Register
        4. 7.6.1.4  THERM Status Register
        5. 7.6.1.5  THERM2 Status Register
        6. 7.6.1.6  Remote Channel Open Status Register
        7. 7.6.1.7  Configuration Register
        8. 7.6.1.8  η-Factor Correction Register
        9. 7.6.1.9  Remote Temperature Offset Register
        10. 7.6.1.10 THERM Hysteresis Register
        11. 7.6.1.11 Local and Remote THERM and THERM2 Limit Registers
        12. 7.6.1.12 Block Read - Auto Increment Pointer
        13. 7.6.1.13 Lock Register
        14. 7.6.1.14 Manufacturer and Device Identification Plus Revision Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12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

7.3.1 Temperature Measurement Data

The local and remote temperature sensors have a resolution of 13 bits (0.0625°C). Temperature data that result from conversions within the default measurement range are represented in binary form, as shown in the Standard Binary column of Table 1. Negative numbers are represented in two's-complement format. The resolution of the temperature registers extends to 255.9375°C and down to –256°C, but the actual device is limited to ranges as specified in the Electrical Characteristics table to meet the accuracy specifications. The TMP464 device is specified for ambient temperatures ranging from –40°C to +125°C; parameters in the Absolute Maximum Ratings table must be observed to prevent damage to the device.

Table 1. Temperature Data Format (Local and Remote Temperature)

TEMPERATURE
(°C)		 LOCAL OR REMOTE TEMPERATURE REGISTER VALUE
(0.0625°C RESOLUTION)
STANDARD BINARY(1)
BINARY HEX
–64 1110 0000 0000 0000 E0 00
–50 1110 0111 0000 0000 E7 00
–25 1111 0011 1000 0000 F3 80
–0.1250 1111 1111 1111 0000 FF F0
–0.0625 1111 1111 1111 1000 FF F8
0 0000 0000 0000 0000 00 00
0.0625 0000 0000 0000 1000 00 08
0.1250 0000 0000 0001 0000 00 10
0.1875 0000 0000 0001 1000 00 18
0.2500 0000 0000 0010 0000 00 20
0.3125 0000 0000 0010 1000 00 28
0.3750 0000 0000 0011 0000 00 30
0.4375 0000 0000 0011 1000 00 38
0.5000 0000 0000 0100 0000 00 40
0.5625 0000 0000 0100 1000 00 48
0.6250 0000 0000 0101 0000 00 50
0.6875 0000 0000 0101 1000 00 58
0.7500 0000 0000 0110 0000 00 60
0.8125 0000 0000 0110 1000 00 68
0.8750 0000 0000 0111 0000 00 70
0.9375 0000 0000 0111 1000 00 78
1 0000 0000 1000 0000 00 80
5 0000 0010 1000 0000 02 80
10 0000 0101 0000 0000 05 00
25 0000 1100 1000 0000 0C 80
50 0001 1001 0000 0000 19 00
75 0010 0101 1000 0000 25 80
100 0011 0010 0000 0000 32 00
125 0011 1110 1000 0000 3E 80
127 0011 1111 1000 0000 3F 80
150 0100 1011 0000 0000 4B 00
175 0101 0111 1000 0000 57 80
191 0101 1111 1000 0000 5F 80
(1) Resolution is 0.0625°C per count. Negative numbers are represented in two's-complement format.

Both local and remote temperature data use two bytes for data storage with a two's-complement format for negative numbers. The high byte stores the temperature with 2°C resolution. The second or low byte stores the decimal fraction value of the temperature and allows a higher measurement resolution, as shown in Table 1. The measurement resolution for both the local and the remote channels is 0.0625°C.
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