Automotive 47-V H-bridge smart gate driver


Product details


Number of full bridges 1 Vs (Min) (V) 5.5 Vs ABS (Max) (V) 47 Sleep current (uA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) 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 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


  • 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)

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open-in-new Find other Brushed DC (BDC) motor drivers


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.

open-in-new Find other Brushed DC (BDC) motor drivers
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NEW DRV8706-Q1 ACTIVE Automotive 40-V H-bridge smart gate driver with offline diagnostics & inline current sense am Improved diagnostics and specs along with more configuration. Inline current sensor allows 100% current sensing and enables support for ripple counting.

Technical documentation

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Type Title Date
* Data sheet DRV870x-Q1 Automotive H-Bridge Gate Driver datasheet (Rev. E) Nov. 13, 2018
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) Jan. 19, 2021
Functional safety information DRV8702-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Dec. 10, 2020
Application note Understanding Smart Gate Drive (Rev. D) Nov. 06, 2020
Technical article How to efficiently drive 12-V and 24-V engine loads in automotive systems Jul. 09, 2020
Application note Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers May 29, 2020
White paper Smart Gate Drive Jul. 02, 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) Feb. 19, 2019
Application note External or internal FETs for motor drive in automotive applications (Rev. A) Feb. 11, 2019
Application note Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Application note Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) Aug. 20, 2018
Application note Using DRV to Drive Solenoids - DRV8876/DRV8702-Q1/DRV8343-Q1 Feb. 19, 2018
Technical article Why are you still driving automotive motors with relays? Jul. 13, 2017
Technical article The story of motor-drive integration Jan. 09, 2017
Application note Relay Replacement for Brushed DC Motor Drive in Automotive Applications Nov. 14, 2016
Technical article How to create a dynamic power solution for stepper motors, relays and LEDs Nov. 01, 2016
User guide DRV8702-Q1 EVM User’s Guide Oct. 26, 2016

Design & development

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

Hardware development

document-generic User guide
The DRV8702-Q1EVM (evaluation module) serves as an evaluation kit to demonstrade TI's DRV8702-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 DRV8702-Q1. The power stage is created using (...)
  • 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

Design tools & simulation

SLVMAR3A.ZIP (90 KB) - PSpice Model

Reference designs

Automotive Windshield Wiper Drive Reference Design
TIDA-01530 — This reference design drives a two-speed front windshield wiper, one or two rear wipers, and the pump, which sprays the front and back windshields in an automobile. In addition to controlling the brushed motors for the wipers and pump, this design includes inputs for wiper parking signals as well as (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

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