DRV8703D-Q1

ACTIVE

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

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Product details

Parameters

Number of full bridges 1/2 Vs (Min) (V) 5.5 Vs (Max) (V) 45 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current Sense Amplifier, Smart Gate Drive Approx. price (US$) 0.69 | 1ku 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

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Type Title Date
* Datasheet DRV870xD-Q1 Automotive Half-Bridge Gate Driver datasheet (Rev. B) Sep. 20, 2018
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 Using DRV to Drive Solenoids - DRV8876/DRV8702-Q1/DRV8343-Q1 Feb. 19, 2018
Technical articles Integrated intelligence part 3: motor startup from standstill position Dec. 11, 2017
Technical articles Integrated intelligence part 1: EMI management Aug. 10, 2017
Technical articles Why are you still driving automotive motors with relays? Jul. 13, 2017
Technical articles A basic brushless gate driver design – part 1 Jun. 12, 2017
User guides DRV8703D-Q1 EVM User’s Guide Mar. 22, 2017
Application notes Relay Replacement for Brushed DC Motor Drive in Automotive Applications Nov. 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
$75.00
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

Software development

SUPPORT SOFTWARE Download
SLVC689.ZIP (80387 KB)

Design tools & simulation

SCHEMATICS Download
SLVRBF2.ZIP (12421 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

Support & training

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Videos

Smart Gate Drive Technology

This video is an introduction to TI's smart gate drive technology and its three key benefits: reduced system cost, ease of use and reliable protection.

Posted: 14-Jan-2018
Duration: 03:00

Learn More

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