SLVAG33 August   2026 DRV8904-Q1 , DRV8906-Q1 , DRV8908-Q1 , DRV8910-Q1 , DRV8912-Q1

 

  1.   1
  2.   Abstract
  3. 1Application Background
    1. 1.1 Device Overview
    2. 1.2 Overview of OLD Function
  4. 2OLD Application Issues and Analysis
    1. 2.1 Problem 1: OLD False Alarms Under Active Freewheeling with PWM Control
      1. 2.1.1 Problem Description
      2. 2.1.2 Cause Analysis
      3. 2.1.3 Application Recommendations
    2. 2.2 Problem 2: How to Maintain Output in the OLD State Through a Sleep-Wake Cycle
      1. 2.2.1 Problem Description
      2. 2.2.2 Cause Analysis
      3. 2.2.3 Waveform Verification
      4. 2.2.4 Application Recommendations
    3. 2.3 Problem 3: How LOLD (Low-Current Open-Load Detection) is Triggered
      1. 2.3.1 Problem Description
      2. 2.3.2 Cause Analysis
      3. 2.3.3 Waveform Verification
      4. 2.3.4 Application Recommendations
  5. 3Conclusion
  6. 4References
Application Note

DRV89xx-Q1 Open Load Detection (OLD) Application Guide and Analysis of Typical Problems