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DRV8703D-Q1

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Automotive 45-V, half-bridge smart gate driver with SPI control

Data sheet
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Automotive 45-V, half-bridge smart gate driver with SPI control

DRV8703D-Q1

ACTIVE
Data sheet Order now

Product details

Parameters

Number of full bridges 1/2 Vs (Min) (V) 5.5 Vs (Max) (V) 45 Sleep current (uA) 14 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current Sense Amplifier, Smart Gate Drive Rating Automotive open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Brushed DC (BDC) motor drivers

Features

  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Single Half-Bridge Gate Driver
    • Drives Two External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45-V Operating Supply-Voltage Range
  • PWM Control Interface
  • Serial Interface for Configuration (DRV8703D-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703D-Q1)
    • Fault-Condition Output (nFAULT)

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Description

The DRV870xD-Q1 devices are small half bridge gate drivers that use two external N-channel MOSFETs targeted to drive unidirectional brushed-DC motors or solenoid loads.

A PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch. Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870xD-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet DRV870xD-Q1 Automotive Half-Bridge Gate Driver datasheet (Rev. B) Sep. 20, 2018
Application notes Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers May 29, 2020
Application notes Various Reference Voltage Driving Techniques for Motor Drive Current Regulation (Rev. A) Jan. 27, 2020
White papers Smart Gate Drive Jul. 02, 2019
Application notes Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) Feb. 19, 2019
Application notes External or internal FETs for motor drive in automotive applications (Rev. A) Feb. 11, 2019
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Application notes Understanding Smart Gate Drive (Rev. C) Nov. 27, 2018
Application notes Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) Aug. 20, 2018
Application notes Using DRV to Drive Solenoids - DRV8876/DRV8702-Q1/DRV8343-Q1 Feb. 19, 2018
Technical articles Why are you still driving automotive motors with relays? Jul. 13, 2017
User guides DRV8703D-Q1 EVM User’s Guide Mar. 22, 2017
Technical articles The story of motor-drive integration Jan. 09, 2017
Application notes Relay Replacement for Brushed DC Motor Drive in Automotive Applications Nov. 14, 2016
Technical articles How to create a dynamic power solution for stepper motors, relays and LEDs Nov. 01, 2016
Technical articles How to avoid motor and system overvoltage using AVS technology without external components Oct. 14, 2016

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
75
Description
The DRV8703D-Q1EVM (evaluation module) serves as an evaluation kit to demonstrate TI's DRV8703D-Q1 Half-bridge gate driver. An MSP430G2553 is used to control the duty cycle and direction of the motor, while also monitoring the motor current reported from the DRV8703D-Q1. The power stage is created (...)
Features
  • 5.9 V to 45 V Operating Voltage Range
  • 15 A continuous / 20 A peak H-bridge output current
  • Driver a single bidirectional brushed DC motor or two unidirectional brushed DC motors
  • Compact 3.5" x 2.2" form factor
  • User-friendly GUI via MSP430 and USB Interface
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Package Pins Download
VQFN (RHB) 32 View options

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