SLVSD29 October   2015 DRV8704

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 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  PWM Motor Drivers
      2. 7.3.2  Direct PWM Input Mode (Dual Brushed DC Gate Driver)
      3. 7.3.3  Current Regulation
      4. 7.3.4  Decay Modes
      5. 7.3.5  Blanking Time
      6. 7.3.6  Gate Drivers
      7. 7.3.7  Configuring Gate Drivers
      8. 7.3.8  External FET Selection
      9. 7.3.9  Protection Circuits
        1. 7.3.9.1 Overcurrent Protection (OCP)
        2. 7.3.9.2 Gate Driver Fault (PDF)
        3. 7.3.9.3 Thermal Shutdown (TSD)
        4. 7.3.9.4 Undervoltage Lockout (UVLO)
      10. 7.3.10 Serial Data Format
    4. 7.4 Device Functional Modes
    5. 7.5 Register Maps
      1. 7.5.1 Control Registers
        1. 7.5.1.1 CTRL Register (Address = 0x00h)
          1. Table 4. CTRL Register
        2. 7.5.1.2 TORQUE Register (Address = 0x01h)
          1. Table 5. TORQUE Register
        3. 7.5.1.3 OFF Register (Address = 0x02h)
          1. Table 6. OFF Register
        4. 7.5.1.4 BLANK Register (Address = 0x03h)
          1. Table 7. BLANK Register
        5. 7.5.1.5 DECAY Register (Address = 0x04h)
          1. Table 8. DECAY Register
        6. 7.5.1.6 Reserved Register Address = 0x05h
          1. Table 9. Reserved Register
        7. 7.5.1.7 DRIVE Register Address = 0x06h
          1. Table 10. DRIVE Register
        8. 7.5.1.8 STATUS Register (Address = 0x07h)
          1. Table 11. STATUS Register
  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 Current Chopping Configuration
        4. 8.2.2.4 Decay Modes
        5. 8.2.2.5 Sense Resistor
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • Pulse Width Modulation (PWM) Motor Driver
    • Drives External N-Channel MOSFETs
    • PWM Control Interface for Dual DC Motors
    • Supports 100% PWM Duty Cycle
  • 8-V to 52-V Operating Supply Voltage Range
  • Adjustable Gate Drive (4 Levels)
    • 50-mA to 200-mA Source Current
    • 100-mA to 400-mA Sink Current
  • Integrated PWM Current Regulation
  • Flexible Decay Modes
    • Automatic Mixed Decay Mode
    • Slow Decay
    • Fast Decay
    • Mixed Decay (Adjustable Percent Fast)
  • Highly Configurable SPI
  • Torque DAC to Digitally Scale Current
  • Low-Current Sleep Mode (65 μA)
  • 5-V, 10-mA LDO Regulator
  • Thermally-Enhanced Surface-Mount Package
    • 38-Pin HTSSOP (PowerPAD)

    • SPACER

  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Gate Driver Fault (PDF)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Condition Indication Pin (nFAULT)
    • Fault Diagnostics through SPI
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