DRV8703-Q1

ACTIVE

Automotive 45-V H-bridge smart gate driver with SPI control

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 5.5 Vs (Max) (V) 45 RDS(ON) (HS + LS) (mOhms) 0 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 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 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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Description

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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NEW DRV8705-Q1 PREVIEW 37V, automotive brushed-DC smart gate driver with offline diagnostics Improved diagnostics, bidirectional current sensing and lower sleep current. Allows more granular configuration of various specs such as gate driver current.
NEW DRV8706-Q1 PREVIEW 37V, automotive H-bridge smart gate driver with inline current sense amplifier Improved diagnostics and specs along with more configurability. Inline current sensing allows 100% current sensing and enables support for ripple counting.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 16
Type Title Date
* Datasheet DRV870x-Q1 Automotive H-Bridge Gate Driver datasheet (Rev. D) 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
User guides DRV8703-Q1 EVM User’s Guide (Rev. A) Oct. 11, 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
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

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
75
Description
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 (...)
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

Design tools & simulation

SIMULATION MODELS Download
SLVMAR3A.ZIP (90 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Automotive power seat reference design
TIDA-020008 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive Power Trunk Lift Motor Drive Reference Design
TIDA-060009 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Small-Footprint Sunroof Motor Module Reference Design
TIDA-01389 — The TIDA-01389 is a small-footprint motor control module intended for sunroof and window lift applications. This TI 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 layout (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

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