DRV8872

ACTIVE

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 Sleep current (uA) 10 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation Rating Catalog 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

  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.5-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 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with 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 device features integrated current regulation, based on an internal reference voltage and the voltage on pin ISEN, 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 (UVLO), overcurrent (OCP), and overtemperature (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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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
DRV8876 ACTIVE 37-V, 3.5-A H-bridge motor driver with integrated current sensing & current sense feedback Reduces BOM cost, board space and power consumption with integrated current sensing.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet DRV8872 3.6-A Brushed DC Motor Driver With Fault Reporting (PWM Control) datasheet (Rev. C) Jul. 05, 2016
Application note Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 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
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
User guide DRV8872 Evaluation Module User's Guide Aug. 21, 2015
Application note Calculating Motor Driver Power Dissipation Feb. 06, 2012
Application note Understanding Motor Driver Current Ratings Feb. 06, 2012
Application note PowerPAD™ Made Easy (Rev. B) May 12, 2004

Design & development

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

Hardware development

EVALUATION BOARD Download
49
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

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

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