JAJSHW2A August   2019  – April 2020 DRV425-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Fluxgate Sensor Front-End
        1. 8.3.1.1 Fluxgate Sensor
        2. 8.3.1.2 Bandwidth
        3. 8.3.1.3 Differential Driver for the Internal Compensation Coil
        4. 8.3.1.4 Magnetic Field Range, Overrange Indicator, and Error Flag
      2. 8.3.2 Shunt-Sense Amplifier
      3. 8.3.3 Voltage Reference
      4. 8.3.4 Low-Power Operation
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Linear Position Sensing
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Current Sensing in Busbars
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Decoupling
    2. 10.2 Power-On Start-Up and Brownout
    3. 10.3 Power Dissipation
      1. 10.3.1 Thermal Pad
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 サポート・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 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

9.2.1.1 Design Requirements

For the example shown in Figure 67, use the parameters listed in Table 2 as a starting point of the design.

Table 2. Design Parameters

DESIGN PARAMETER EXAMPLE VALUE
Magnetic field range VDD = 5 V: ±2 mT (max)
VDD = 3.3 V: ±1.3 mT (max)
Supply voltage, VDD 3.0 V to 5.5 V
Reference voltage, VREFIN Range: GND to VDD
If an internal reference is used: 2.5 V, 1.65 V, or VDD / 2
Shunt resistor, RSHUNT Depends on the desired magnetic field range, reference, and supply voltage; see the DRV425 System Parameter Calculator for details.