JAJSSF8 December   2023 LDC5071-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Diagnostics
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Input Supply Voltage
      2. 6.3.2 Excitation Signal
      3. 6.3.3 Signal Processing Block
        1. 6.3.3.1 Demodulation
        2. 6.3.3.2 Fixed Gain Control
        3. 6.3.3.3 Automatic Gain Control
      4. 6.3.4 Output Stage
      5. 6.3.5 Diagnostics
        1. 6.3.5.1 Undervoltage Diagnostics
        2. 6.3.5.2 Initialization Diagnostics
        3. 6.3.5.3 Normal State Diagnostics
        4. 6.3.5.4 Fault State Diagnostics
    4. 6.4 Device Functional Modes
      1. 6.4.1 IDLE State
      2. 6.4.2 DIAGNOSTICS State
      3. 6.4.3 NORMAL State
      4. 6.4.4 FAULT State
      5. 6.4.5 DISABLED State
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 5-V Supply Mode
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 VREG and VCC
          2. 7.2.1.2.2 Output Capacitors
          3. 7.2.1.2.3 Automatic Gain Control (AGC) Mode
        3. 7.2.1.3 Application Curve
      2. 7.2.2 3.3-V Supply Mode
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
          1. 7.2.2.2.1 VREG and VCC
          2. 7.2.2.2.2 Output Capacitors
          3. 7.2.2.2.3 Fixed Gain Mode
      3. 7.2.3 Redundancy Mode
      4. 7.2.4 Single-Ended Mode
      5. 7.2.5 External Diagnostics Required for Loss of VCC or GND
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Mode 1: VCC = 5 V, VREG = 3.3 V
      2. 7.3.2 Mode 2: VCC = VREG = 3.3 V
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 サポート・リソース
    3. 8.3 Trademarks
    4. 8.4 静電気放電に関する注意事項
    5. 8.5 用語集
  10. 9 Revision History
  11. 10Mechanical, 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
7.2.1.2.1 VREG and VCC

A short circuit to battery is possible, therefore the VCC must be supplied by a 5-V rail. In this application, the VREG pin requires an external capacitor for regulation. The device will automatically detect the 5-V supply and turn the VREG LDO on for operation.