ZHCSQ30 December   2022 DRV8317

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Output Stage
      2. 8.3.2  Control Modes
        1. 8.3.2.1 6x PWM Mode
        2. 8.3.2.2 3x PWM Mode
      3. 8.3.3  Device Interface Modes
        1. 8.3.3.1 Serial Peripheral Interface (SPI)
        2. 8.3.3.2 Hardware Interface
      4. 8.3.4  AVDD Linear Voltage Regulator
      5. 8.3.5  Charge Pump
      6. 8.3.6  Slew Rate Control
      7. 8.3.7  Cross Conduction (Dead Time)
      8. 8.3.8  Propagation Delay
      9. 8.3.9  Pin Diagrams
        1. 8.3.9.1 Logic Level Input Pin (Internal Pulldown)
        2. 8.3.9.2 Logic Level Input Pin (Internal Pullup)
        3. 8.3.9.3 Open Drain Pin
        4. 8.3.9.4 Push Pull Pin
        5. 8.3.9.5 Four Level Input Pin
      10. 8.3.10 Current Sense Amplifiers
        1. 8.3.10.1 Current Sense Amplifier Operation
      11. 8.3.11 Protections
        1. 8.3.11.1 Under Voltage Protection (UVP)
        2. 8.3.11.2 VM Under Voltage Warn (VMUV_WARN) Protection
          1. 8.3.11.2.1 VM Under Voltage Warn Automatic Retry (VMUV_WARN_MODE = 00b or 01b)
          2. 8.3.11.2.2 VM Under Voltage Warn Report Only (VMUV_WARN_MODE = 10b)
          3. 8.3.11.2.3 VM Under Voltage Warn Disabled (VMUV_WARN_MODE = 11b)
        3. 8.3.11.3 Over Current Protection (OCP)
          1. 8.3.11.3.1 OCP Latched Fault (OCP_MODE = 010b)
          2. 8.3.11.3.2 OCP Automatic Retry (OCP_MODE = 000b or 001b)
          3. 8.3.11.3.3 OCP Report Only (OCP_MODE = 011b)
        4. 8.3.11.4 VM Over Voltage Protection (OVP)
        5. 8.3.11.5 SPI Fault
        6. 8.3.11.6 System (OTP Read) Fault
        7. 8.3.11.7 Thermal Protection
          1. 8.3.11.7.1 FET Over Temperature Warning (OTW_FET)
          2. 8.3.11.7.2 FET Over Temperature Shutdown (OTS_FET)
          3. 8.3.11.7.3 LDO Over Temperature Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Functional Modes
        1. 8.4.1.1 Sleep Mode
        2. 8.4.1.2 Operating Mode
        3. 8.4.1.3 Fault Reset (FLT_CLR or nSLEEP Reset Pulse)
    5. 8.5 SPI Communication
      1. 8.5.1 Programming
        1. 8.5.1.1 SPI Format
    6. 8.6 DRV8317 Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      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. 9.2.1.2 Driver Propagation Delay and Dead Time
        3. 9.2.1.3 Delay Compensation
        4. 9.2.1.4 Current Sensing and Output Filtering
        5. 9.2.1.5 Application Curves
    3. 9.3 Alternate Applications
  11. 10Power Supply Recommendations
    1. 10.1 Bulk Capacitance
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
      1. 11.3.1 Power Dissipation and Junction Temperature Estimation
  13. 12Device and Documentation Support
    1. 12.1 支持资源
    2. 12.2 Trademarks
    3. 12.3 静电放电警告
    4. 12.4 术语表
  14. 13Mechanical, Packaging, and Orderable Information

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9.3 Alternate Applications

The DRV8317 can be used to drive brushed-DC motors and solenoid loads. The following design procedure can be used to configure the DRV8317.

GUID-20220401-SS0I-PQXS-NHKM-SRTP8JMDVV8Z-low.svg Figure 9-6 Application Schematics (DRV8317H) - Brushed-DC and Solenoid Load Drive Block Diagram

6x PWM mode or 3x PWM mode can be used to drive brushed-DC and/or solenoid loads depending on the application. A Brushed-DC motor can be connected to two OUTx phases to create an integrated full H-bridge configuration to drive the motor in both direction.

Solenoid loads can be connected from OUTx to VM or GND to use the DRV8317 as a push-pull driver in 6x PWM or 3x PWM mode. When the load is connected from OUTx to GND, the HS MOSFET sources current into the solenoid, and the LS MOSFET acts as a recirculation diode to recirculate current from the solenoid. When the load is connected from OUTx to VM, the LS MOSFET sink current from the solenoid to GND, and the HS MOSFET acts as a recirculation diode to recirculate current from the solenoid.