ZHCSRG7 January   2023 DRV2901

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Block Diagrams
    2. 7.2 Feature Description
      1. 7.2.1 Error Reporting
      2. 7.2.2 Device Reset
      3. 7.2.3 Device Protection System
        1. 7.2.3.1 Overcurrent (OC) Protection With Current Limiting and Overload Detection
        2. 7.2.3.2 Overtemperature Protection
        3. 7.2.3.3 Undervoltage Protection (UVP) and Power-On Reset (POR)
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
  9. 9 Power Supply Recommendations
    1. 9.1 System Power-up/power-down Sequence
      1. 9.1.1 Powering Up
      2. 9.1.2 Powering Down
    2. 9.2 System Design Recommendations
      1. 9.2.1 VDD Pin
      2. 9.2.2 VREG Pin
      3. 9.2.3 OTW Pin
  10. 10Mechanical, Packaging, and Orderable Information

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7.2.3.2 Overtemperature Protection

The DRV2901 has a two-level temperature-protection system that asserts an active-low warning signal ( OTW) when the device junction temperature exceeds 125°C (nominal) and, if the device junction temperature exceeds 155°C (nominal), the device is put into thermal shutdown, resulting in all half-bridge outputs being set in the high-impedance (Hi-Z) state and SD being asserted low. OTE is latched in this case and RESET_AB must be asserted low.