DRV8872-Q1

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Automotive 45-V, 3.6-A H-bridge motor driver with fault reporting & current regulation

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 6.5 Vs (Max) (V) 45 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mOhms) 565 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation Approx. price (US$) 1.01 | 1ku Rating Automotive open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 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 Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.8-V to 45-V Operating Voltage
  • 565-mΩ Typical RDS(on) (HS + LS)
  • 3.6-A Peak Current Drive
  • PWM Control Interface
  • Integrated Current Regulation
  • Low-Power Sleep Mode
  • Fault Status Output Pin
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Fault Reporting (nFAULT)
    • Automatic Fault Recovery

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Description

The DRV8872-Q1 device is a brushed DC (BDC) motor driver for infotainment, HUD projector adjustment, motorized shifter knobs, and piezo horn drivers. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that provide bidirectional control of motors up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.

The DRV8872-Q1 device features integrated current regulation, based on an internal reference voltage and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.

The device is fully protected from faults and short circuits, including undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD). Faults are communicated by pulling the nFAULT output low. When the fault condition is removed, the device automatically resumes normal operation.

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DRV8876-Q1 PREVIEW Automotive 37-V, 3.5A brushed DC motor driver with integrated current sensing & current sense output Supports configurable current regulation and lower sleep current. Integrated power sense resistor saves power, space and cost.

Technical documentation

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Type Title Date
* Datasheet DRV8872-Q1 Automotive 3.6-A Brushed DC Motor Driver With Fault Reporting datasheet Nov. 30, 2016
Technical articles Anything but discrete: How to simplify 48-V to 60-V DC-fed three-phase inverter design Feb. 01, 2019
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Technical articles Integrated intelligence part 3: motor startup from standstill position Dec. 11, 2017
Technical articles Integrated intelligence part 2: motor startup open loop acceleration Dec. 04, 2017
Technical articles Six weird ways to design with a brushless-DC driver Aug. 28, 2017
Application notes Operating an Engine-Grille Shutter Motor With DRV8872-Q1 Dec. 01, 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
$49.00
Description

The DRV8872 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8872 integrated circuit from Texas Instruments. The EVM includes a 5V regulator and PWM generator. A single power source is required to evaluate the DRV8872.

Features
  • 6.5V to 4.5V Operating Supply Voltage Range
  • On board 5V regulator
  • Adjustable PWM duty cycle

Reference designs

REFERENCE DESIGNS Download
Automotive Brushed Motor Driver for Power Folding Side Mirrors
TIDA-00145 This TI Design features the DRV8801EVM and the DRV8872EVM. These evaluation modules (EVMs) enable an easy-to-use platform to demonstrate the capability and performance of the DRV8801 and DRV8872 motor drivers for power-folding side mirrors.

This TI Design also intends to allow easy evaluation of the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

Support & training

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Videos

Electric Motor Fundamentals - DC Brushed Motors in Automotive

An overview of the fundamental electronics for driving DC brushed motors in automotive applications.

Posted: 07-Jan-2019
Duration: 55:14

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