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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fpdf%2Fslvubn5″>View Datasheet

Texas Instruments DRV8705S-Q1EVM Gate Driver Evaluation Module

Texas Instruments DRV8705S-Q1EVM Gate Driver Evaluation Module (EVM) is designed to evaluate the DRV8705S-Q1. The DRV8705S-Q1 is an integrated automotive-qualified brushed DC motor driver. The DRV8705S-Q1 is a highly integrated half-bridge gate driver capable of driving high-side and low-side N-channel power MOSFETs. It generates the proper gate drive voltages, using an integrated doubler charge pump for the high side and a linear regulator for the low side.

The Texas Instruments DRV8705S-Q1EVM has a half-bridge consisting of four N-channel MOSFETs that drive motors bi-directionally up to 15ARMS, 20A peak current. The evaluation module operates from a single power supply for the analog power and from the USB line for the digital power, which can be customized to be externally supplied. A negative 18V reverse battery protection circuit, along with a 20ARMS rated PI filter, is provided to clean up the power supply input and protect against incorrect battery connections.

Features

  • H-bridge smart gate driver evaluation module for automotive applications
    • –40°C to +125°C, TA temperature grade 1
    • 4.9V to 37V operating range
    • Doubler charge pump for 100% PWM
    • Half-bridge and H-bridge control modes
    • SPI interface for simple configuration
  • Smart gate drive architecture
    • Adjustable slew rate control
    • 1.0mA to 62mA peak source current output
    • 1.0mA to 62mA peak sink current output
    • Integrated dead-time handshaking
    • MOSFET drain to source and gate monitors
  • Current shunt amplifier
    • Low side sensing
    • Adjustable gain settings (10, 20, 40, 80V/V)
    • Integrated feedback resistors
  • Integrated protection features
    • Dedicated driver disable pin (DRVOFF)
    • Supply and regulator undervoltage monitors
    • MOSFET VDS overcurrent monitors
    • MOSFET VGS gate fault monitors
    • Charge pump for reverse polarity MOSFET
    • Device thermal warning and shutdown
    • Fault condition interrupt pin (n fault)

Board Layout

Mechanical Drawing - Texas Instruments DRV8705S-Q1EVM Gate Driver Evaluation Module

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Texas Instruments DRV8705S-Q1EVM Gate Driver Evaluation Module