JAJSME2A december   2022  – august 2023 TLV1851 , TLV1861

PRODMIX  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     Pin Configuration: TLV1851 and TLV1861
    2.     Pin Configurations: TLV1852 and TLV1862
    3.     Pin Configurations: TLV1854 and TLV1864
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Thermal Information
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Inputs
        1. 7.4.1.1 Operating Common-Mode Ranges
        2. 7.4.1.2 Fail-Safe Inputs
        3. 7.4.1.3 Unused Inputs
      2. 7.4.2 Internal Hysteresis
      3. 7.4.3 Outputs
        1. 7.4.3.1 TLV185x Push-Pull Output
        2. 7.4.3.2 TLV186x Open-Drain Output
      4. 7.4.4 ESD Protection
        1. 7.4.4.1 Inputs
        2. 7.4.4.2 Outputs
      5. 7.4.5 Power-On Reset (POR)
      6. 7.4.6 Reverse Battery Protection
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Comparator Definitions
        1. 8.1.1.1 Operation
        2. 8.1.1.2 Propagation Delay
        3. 8.1.1.3 Overdrive Voltage
      2. 8.1.2 Hysteresis
        1. 8.1.2.1 Inverting Comparator With Hysteresis
        2. 8.1.2.2 Non-Inverting Comparator With Hysteresis
        3. 8.1.2.3 Inverting and Non-Inverting Hysteresis using Open-Drain Output
    2. 8.2 Typical Applications
      1. 8.2.1 Window Comparator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Undervoltage Detection
      3. 8.2.3 Reverse Battery and Overvoltage Protection Scheme
    3. 8.3 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10デバイスおよびドキュメントのサポート
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 ドキュメントの更新通知を受け取る方法
    3. 10.3 サポート・リソース
    4. 10.4 Trademarks
    5. 10.5 静電気放電に関する注意事項
    6. 10.6 用語集
  12. 11Mechanical, Packaging, and Orderable Information

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

8.2.1.2 Detailed Design Procedure

Configure the circuit as shown in Figure 8-7. Connect V+ to a 3.3-V power supply and VEE to ground. Make R1, R2 and R3 each 10-MΩ resistors. These three resistors are used to create the positive and negative thresholds for the window comparator (VTH+ and VTH–).

With each resistor being equal, VTH+ is 2.2 V and VTH- is 1.1 V. Large resistor values such as 10-MΩ are used to minimize power consumption. The resistor values may be recalculated to provide the desired trip point values.

The sensor output voltage is applied to the inverting and noninverting inputs of the two comparators. Using two open-drain output comparators allows the two comparator outputs to be Wire-OR'ed together.

The respective comparator outputs will be low when the sensor is less than 1.1 V or greater than 2.2 V. The respective comparator outputs will be high when the sensor is in the range of 1.1 V to 2.2 V (within the "window"), as shown in Figure 8-8.