ZHCSQQ0A June   2022  – October 2022 DRV8329

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 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. 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. 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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订购信息

8.3.6 Gate Driver Protective Circuits

The DRV8329 are protected against PVDD undervoltage and overvoltage, AVDD power-on reset, bootstrap undervoltage, GVDD undervoltage, MOSFET VDS and VSENSE overcurrent events.

Table 8-5 Fault Action and Response
FAULTCONDITIONCONFIGURATIONREPORTGATE DRIVERLOGICRECOVERY
PVDD undervoltage
(PVDD_UV)		VPVDD < VPVDD_UV-nFAULTDisabled1DisabledAutomatic:
VPVDD > VPVDD_UV
AVDD POR
(AVDD_POR)		VAVDD < VAVDD_POR-nFAULTDisabled1DisabledAutomatic:
VAVDD > VAVDD_POR
GVDD undervoltage
(GVDD_UV)		VGVDD < VGVDD_UV-nFAULTPulled Low 2ActiveLatched:
nSLEEP Reset Pulse
BSTx undervoltage
(BST_UV)		VBSTx - VSHx < VBST_UV and INHx = High-nFAULTPulled Low 2ActiveLatched:
nSLEEP Reset Pulse
VDS overcurrent
(VDS_OCP)		VDS > VDS_LVL0.1V < VVDSLVL < 2.5VnFAULTPulled Low 2ActiveLatched:
nSLEEP Reset Pulse
VDSLVL pin 100kΩ tied to GVDD NoneActiveActiveNo action
VSENSE overcurrent
(SEN_OCP)		VSP > VSENSE_LVL-nFAULTPulled Low 2ActiveLatched:
nSLEEP Reset Pulse
VDSLVL pin 100kΩ tied to GVDD NoneActiveActiveNo action
Thermal shutdown
(OTSD)		TJ > TOTSD-nFAULTPulled Low 2ActiveLatched:
nSLEEP Reset Pulse
  1. Disabled: Passive pull down for GLx and semiactive pull down for GHx
  2. Pulled Low: GHx and GLx are actively pulled low by the gate driver
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