ZHCSDX1B June   2015  – September 2018 TPL5111

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化应用电路原理图
  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 Ratings
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 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 DRVn
      2. 7.3.2 DONE
    4. 7.4 Device Functional Modes
      1. 7.4.1 Start-Up
      2. 7.4.2 Timer Mode
      3. 7.4.3 One-Shot Mode
    5. 7.5 Programming
      1. 7.5.1 Configuring the Time Interval With the DELAY/M_DRV Pin
      2. 7.5.2 Manual Power ON Applied to the DELAY/M_DRV Pin
        1. 7.5.2.1 DELAY/M_DRV
        2. 7.5.2.2 Circuitry
      3. 7.5.3 Selection of the External Resistance
      4. 7.5.4 Quantization Error
      5. 7.5.5 Error Due to Real External Resistance
  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 术语表
  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

8.2.2 Detailed Design Procedure

When the primary constraint is battery life, the selection of a low power voltage regulator or DC-DC converter to power the µC is mandatory. The first step in the design is to calculate the power consumption of each device in the different modes of operation. An example is the HDC1000 digital humidity and temperature sensor combined with an RF micro. In measurement mode, the RF micro is in normal operating and transmission mode. The LDO or DC-DC converter should be selected to provide the necessary current source. For example, the HDC1000 consumes a maximum of 220 µA during a humidity measurement, and 300 µA during start-up. The CC2531 consumes 29 mA in TX mode. The LDO should be capable of sourcing > 30 mA, which is an easy requirement to meet.

Assuming the desired wake-up interval is 30 seconds, then referring to Table 3, the values for parallel REXT resistors are 32.4 kΩ and 34.8 kΩ.