SLVSDX8B March   2017  – December 2018 DRV8702D-Q1 , DRV8703D-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 SPI Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Bridge Control
        1. 7.3.1.1 Logic Tables
      2. 7.3.2  MODE Pin
      3. 7.3.3  nFAULT Pin
      4. 7.3.4  Current Regulation
      5. 7.3.5  Amplifier Output (SO)
        1. 7.3.5.1 SO Sample and Hold Operation
      6. 7.3.6  PWM Motor Gate Drivers
        1. 7.3.6.1 Miller Charge (QGD)
      7. 7.3.7  IDRIVE Pin (DRV8702D-Q1 Only)
      8. 7.3.8  Dead Time
      9. 7.3.9  Propagation Delay
      10. 7.3.10 Overcurrent VDS Monitor
      11. 7.3.11 VDS Pin (DRV8702D-Q1 Only)
      12. 7.3.12 Charge Pump
      13. 7.3.13 Gate Drive Clamp
      14. 7.3.14 Protection Circuits
        1. 7.3.14.1 VM Undervoltage Lockout (UVLO2)
        2. 7.3.14.2 Logic Undervoltage (UVLO1)
        3. 7.3.14.3 VCP Undervoltage Lockout (CPUV)
        4. 7.3.14.4 Overcurrent Protection (OCP)
        5. 7.3.14.5 Gate Driver Fault (GDF)
        6. 7.3.14.6 Thermal Shutdown (TSD)
        7. 7.3.14.7 Watchdog Fault (WDFLT, DRV8703D-Q1 Only)
        8. 7.3.14.8 Reverse Supply Protection
      15. 7.3.15 Hardware Interface
        1. 7.3.15.1 IDRIVE (6-level input)
        2. 7.3.15.2 VDS (6-Level Input)
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 SPI Communication
        1. 7.5.1.1 Serial Peripheral Interface (SPI)
        2. 7.5.1.2 SPI Format
    6. 7.6 Register Maps
      1. 7.6.1 DRV8703D-Q1 Memory Map
      2. 7.6.2 Status Registers
        1. 7.6.2.1 FAULT Status Register (address = 0x00h)
          1. Table 15. FAULT Status Field Descriptions
        2. 7.6.2.2 VDS and GDF Status Register Name (address = 0x01h)
          1. Table 16. VDS and GDF Status Field Descriptions
      3. 7.6.3 Control Registers
        1. 7.6.3.1 Main Control Register Name (address = 0x02h)
          1. Table 18. Main Control Field Descriptions
        2. 7.6.3.2 IDRIVE and WD Control Register Name (address = 0x03h)
          1. Table 19. IDRIVE and WD Field Descriptions
        3. 7.6.3.3 VDS Control Register Name (address = 0x04h)
          1. Table 21. VDS Control Field Descriptions
        4. 7.6.3.4 Config Control Register Name (address = 0x05h)
          1. Table 22. Config Control Field Descriptions
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 External FET Selection
        2. 8.2.2.2 IDRIVE Configuration
        3. 8.2.2.3 VDS Configuration
        4. 8.2.2.4 Current Chopping Configuration
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance Sizing
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Related Links
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHB|32
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.4 Device Functional Modes

The DRV870xD-Q1 device is active unless the nSLEEP pin is brought low. In sleep mode, the charge pump is disabled, the half-bridge FETs are disabled to the Hi-Z state, and the AVDD and DVDD regulators are disabled.

NOTE

The t(SLEEP) time must elapse after a falling edge on the nSLEEP pin before the device is in sleep mode. The DRV870xD-Q1 device is brought out of sleep mode automatically if the nSLEEP pin is brought high.

The t(WAKE) time must elapse before the outputs change state after wakeup.

On the DRV8703D-Q1 device, the SPI settings are reset when coming out of UVLO or exiting sleep mode.

While the nSLEEP pin is brought low, both external half-bridge FETs are disabled. The high-side gate pin, GH, are pulled to the output node, SH, by an internal resistor and the low-side gate pin, GL, are pulled to ground.

When the VM voltage is not applied and during the power-on time (ton) the outputs are disabled using weak pulldown resistors between the GH and SH pins and the GL and GND pins.

NOTE

The MODE pin controls the device-logic operation for the PWM input mode. This operation is latched on power up or when exiting sleep mode.