JAJSTS7B March   2024  – August 2024 TMAG5213

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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 Switching Characteristics
    7. 6.7 Magnetic Characteristics
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Field Direction Definition
      2. 7.3.2 Device Output
      3. 7.3.3 Power-On Time
      4. 7.3.4 Output Stage
      5. 7.3.5 Protection Circuits
        1. 7.3.5.1 Overcurrent Protection (OCP)
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Standard Circuit
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Configuration Example
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
      2. 9.1.2 Device Markings
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Revision History
  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
8.2.1.2.1 Configuration Example

In a 3.3V system, 3.2V ≤ Vref ≤ 3.4V. Use Equation 3 to calculate the allowable range for R1.

Equation 3. V r e f   m a x 30 m A ≤ R 1 ≤ V r e f   m i n 100 μ A

For this design example, use Equation 4 to calculate the allowable range of R1.

Equation 4. 3.4 V 30 m A ≤ R 1 ≤ 3.2 V 100 μ A

Therefore:

Equation 5. 113 Ω ≤ R 1 ≤ 32 k Ω

After finding the allowable range of R1 (Equation 5), select a value between 500Ω and 32kΩ for R1.

Assuming a system bandwidth of 10kHz, use Equation 6 to calculate the value of C2.

Equation 6. 2 × f B W   H z < 1 2 π × R 1 × C 2

For this design example, use Equation 7 to calculate the value of C2.

Equation 7. 2 × 10 k H z < 1 2 π × R 1 × C 2

An R1 value of 10kΩ and a C2 value less than 820pF satisfy the requirement for a 10kHz system bandwidth.

A selection of R1 = 10kΩ and C2 = 680pF can cause a low-pass filter with a corner frequency of 23.4kHz.