Product details

Number of full bridges 1 Vs (Min) (V) 6.5 Vs ABS (Max) (V) 50 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 Operating temperature range (C) -40 to 125
Number of full bridges 1 Vs (Min) (V) 6.5 Vs ABS (Max) (V) 50 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 Operating temperature range (C) -40 to 125
HSOIC (DDA) 8 19 mm² 4.9 x 3.9
  • 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
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6.0 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery
  • 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
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6.0 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery

The DRV8870 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 DRV8870 device features integrated current regulation, based on the analog input VREF 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 (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

The DRV8870 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 DRV8870 device features integrated current regulation, based on the analog input VREF 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 (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

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Technical documentation

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Type Title Date
* Data sheet DRV88703.6-A Brushed DC Motor Driver (PWM Control) datasheet (Rev. B) 05 Jul 2016
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) 14 Oct 2021
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) 22 Jul 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) 19 Jan 2021
Technical article Overcoming design challenges for brushed-DC motors in smart sanitation systems 01 Jul 2020
Technical article Automating smart home systems with motor drivers 24 Oct 2019
Technical article Using brushed motors to improve battery life and reliability in industrial applications 17 Jul 2019
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Technical article Why are you still driving automotive motors with relays? 13 Jul 2017
User guide DRV8870 Evaluation Module User's Guide 29 Aug 2015
Application note Understanding Motor Driver Current Ratings 06 Feb 2012
Application note PowerPAD™ Made Easy (Rev. B) 12 May 2004

Design & development

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Evaluation board

DRV8870EVM — DRV8870 H-Bridge PWM Motor Driver Evaluation Module

The DRV8870 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8870 integrated circuit from Texas Instruments. The EVM includes a 5V regulator and PWM generator. A single power source is required to evaluate the DRV8870.

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Reference designs

TIDA-01588 — 10.8-V/15-W, >90% Efficiency, 2.4-cm2, Power Stage Reference Design for Brushed DC Servo Drive

This 15W, 12-mm x 20-mm, power stage reference design drives and controls the position of the brushed DC (BDC) motor operating from a three to six cell Li-ion battery. This highly efficient solution is optimized with a very small form factor that easily fits into the motor, and supports precise (...)
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SO PowerPAD (DDA) 8 View options

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