ZHCSQQ0A June   2022  – October 2022 DRV8329

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specification
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings Comm
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information 1pkg
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Three BLDC Gate Drivers
        1. 8.3.1.1 PWM Control Modes
          1. 8.3.1.1.1 6x PWM Mode
          2. 8.3.1.1.2 3x PWM Mode
        2. 8.3.1.2 Device Hardware Interface
        3. 8.3.1.3 Gate Drive Architecture
          1. 8.3.1.3.1 Propagation Delay
          2. 8.3.1.3.2 Deadtime and Cross-Conduction Prevention
      2. 8.3.2 AVDD Linear Voltage Regulator
      3. 8.3.3 Pin Diagrams
      4. 8.3.4 Low-Side Current Sense Amplifiers
        1. 8.3.4.1 Current Sense Operation
      5. 8.3.5 Gate Driver Shutdown Sequence (DRVOFF)
      6. 8.3.6 Gate Driver Protective Circuits
        1. 8.3.6.1 PVDD Supply Undervoltage Lockout (PVDD_UV)
        2. 8.3.6.2 AVDD Power on Reset (AVDD_POR)
        3. 8.3.6.3 GVDD Undervoltage Lockout (GVDD_UV)
        4. 8.3.6.4 BST Undervoltage Lockout (BST_UV)
        5. 8.3.6.5 MOSFET VDS Overcurrent Protection (VDS_OCP)
        6. 8.3.6.6 VSENSE Overcurrent Protection (SEN_OCP)
        7. 8.3.6.7 Thermal Shutdown (OTSD)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Gate Driver Functional Modes
        1. 8.4.1.1 Sleep Mode
        2. 8.4.1.2 Operating Mode
        3. 8.4.1.3 Fault Reset (nSLEEP Reset Pulse)
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Three Phase Brushless-DC Motor Control
        1. 9.2.1.1 Detailed Design Procedure
          1. 9.2.1.1.1  Motor Voltage
          2. 9.2.1.1.2  Bootstrap Capacitor and GVDD Capacitor Selection
          3. 9.2.1.1.3  Gate Drive Current
          4. 9.2.1.1.4  Gate Resistor Selection
          5. 9.2.1.1.5  System Considerations in High Power Designs
            1. 9.2.1.1.5.1 Capacitor Voltage Ratings
            2. 9.2.1.1.5.2 External Power Stage Components
            3. 9.2.1.1.5.3 Parallel MOSFET Configuration
          6. 9.2.1.1.6  Dead Time Resistor Selection
          7. 9.2.1.1.7  VDSLVL Selection
          8. 9.2.1.1.8  AVDD Power Losses
          9. 9.2.1.1.9  Current Sensing and Output Filtering
          10. 9.2.1.1.10 Power Dissipation and Junction Temperature Losses
      2. 9.2.2 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Bulk Capacitance Sizing
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
      1. 11.3.1 Power Dissipation
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Device Nomenclature
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Community Resources
    6. 12.6 Trademarks
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

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机械数据 (封装 | 引脚)
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订购信息

Overview

The DRV8329 family of devices is an integrated three-phase gate driver supporting an input voltage range of 4.5-V to 60-V. These devices decrease system component count, cost, and complexity by integrating three independent half-bridge gate drivers, trickle charge pump, and a charge pump with linear regulator for the supply voltages of the high-side and low-side gate drivers. DRV8329 also integrates an accurate low voltage regulator (AVDD) capable of supporting 3.3 V at 80 mA output. A hardware interface allows for simple configuration of the motor driver and control of the motor.

The gate drivers support external N-channel high-side and low-side power MOSFETs and can drive up to 1-A source, 2-A sink peak gate drive currents with a 30-mA average output current. A bootstrap circuit with capacitor generates the supply voltage of the high-side gate drive and a trickle charge pump is employed to support 100% duty cycle. The supply voltage of the low-side gate driver is generated using a charge pump with linear regulator GVDD from the PVDD power supply that regulates to 12 V.

In addition to the high level of device integration, the DRV8329 family of devices provides a wide range of integrated protection features. These features include power supply undervoltage lockout (PVDDUV), regulator undervoltage lockout (GVDDUV), Bootstrap Voltage undervoltage lockout (BSTUV), VDS overcurrent monitoring (OCP), Sense resistor overcurrent monitoring (SEN_OCP) and overtemperature shutdown (TSD). Fault events are indicated by the nFAULT pin.

The DRV8329 is available in 0.4-mm pitch, 5 × 4 mm 36-pin QFN surface-mount packages.