Product details

Number of full bridges 1 Vs (Min) (V) 5.5 Vs ABS (Max) (V) 47 RDS(ON) (HS + LS) (mOhms) 0 Sleep current (uA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current Sense Amplifier, Smart Gate Drive Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125
Number of full bridges 1 Vs (Min) (V) 5.5 Vs ABS (Max) (V) 47 RDS(ON) (HS + LS) (mOhms) 0 Sleep current (uA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current Sense Amplifier, Smart Gate Drive Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45-V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • 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 (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45-V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • 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 (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or 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 DRV870x-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.

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or 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 DRV870x-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

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Type Title Date
* Data sheet DRV870x-Q1 Automotive H-Bridge Gate Driver datasheet (Rev. E) 13 Nov 2018
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) 14 Oct 2021
Application note Understanding Smart Gate Drive (Rev. D) 01 Mar 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) 19 Jan 2021
Functional safety information DRV8703-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 29 May 2020
Application note Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers 29 May 2020
White paper Smart Gate Drive 02 Jul 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 19 Feb 2019
Application note External or internal FETs for motor drive in automotive applications (Rev. A) 11 Feb 2019
User guide DRV8703-Q1 EVM User’s Guide (Rev. A) 11 Oct 2018
Application note Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) 20 Aug 2018
Application note Using DRV to Drive Solenoids - DRV8876/DRV8702-Q1/DRV8343-Q1 19 Feb 2018
Technical article Why are you still driving automotive motors with relays? 13 Jul 2017
Technical article The story of motor-drive integration 09 Jan 2017
Application note Relay Replacement for Brushed DC Motor Drive in Automotive Applications 14 Nov 2016
Technical article How to create a dynamic power solution for stepper motors, relays and LEDs 01 Nov 2016
Technical article How to avoid motor and system overvoltage using AVS technology without external components 14 Oct 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DRV8703-Q1EVM — DRV8703-Q1 Automotive Brushed DC Gate Driver Evaluation Module

The DRV8703-Q1EVM (evaluation module) serves as an evaluation kit to demonstrade TI's DRV8703-Q1 H-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 DRV8703-Q1. The power stage is created using (...)
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Simulation model

DRV8701E Transient Simulation Model (Rev. A)

SLVMAR3A.ZIP (90 KB) - PSpice Model
Reference designs

TIDA-01389 — Small-Footprint Sunroof Motor Module Reference Design

This reference design is a small-footprint motor control module intended for sunroof and window-lift applications. This design uses the DRV8703-Q1 gate driver with an integrated current-shunt amplifier alongside two dual-package automotive-qualified MOSFETs to create a very small power-stage (...)
Reference designs

TIDA-020008 — Automotive power seat reference design

This reference design provides the drive and control circuits for motor-driven applications such as automotive power seats, using both bi-directional and unidirectional motor drives. It demonstrates how to drive brushed DC motors with a small board footprint, a high degree of robustness and full (...)
Reference designs

TIDA-060009 — Automotive Power Trunk Lift Motor Drive Reference Design

This design describes how to drive an automotive trunk lift or rear gate lift.

In this design, a brushed BD lift motor and electromagnetic clutch drive mechanisms for a typical gear driven lift. This design includes a warning beeper, LED indicator, and directional control that uses an automotive (...)
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VQFN (RHB) 32 View options

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