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DRV8231A

ACTIVE

35-V, 3.7-A H-bridge motor driver with integrated current regulation & current-sense feedback

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Data sheet

DRV8231A

ACTIVE
Data sheet Order now

Product details

Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 35 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 600 Sleep current (µA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, Integrated Current Sensing, Low-Power Sleep Mode Rating Catalog Operating temperature range (°C) -40 to 150
Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 35 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 600 Sleep current (µA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, Integrated Current Sensing, Low-Power Sleep Mode Rating Catalog Operating temperature range (°C) -40 to 150
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 WSON (DSG) 8 4 mm² 2 x 2

  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 33-V operating supply voltage range

  • Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)

    • DRV8870: 6.5-V to 45-V, 565-mΩ, shunt

    • DRV8251: 4.5-V to 48-V, 450-mΩ, shunt

    • DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror

    • DRV8231: 4.5-V to 33-V, 600-mΩ, shunt

    • DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror

  • High output current capability: 3.7-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated IPROPI current sensing for stall detection and current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Auto-retry overcurrent protection (OCP)
    • Thermal shutdown (TSD)

  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 33-V operating supply voltage range

  • Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)

    • DRV8870: 6.5-V to 45-V, 565-mΩ, shunt

    • DRV8251: 4.5-V to 48-V, 450-mΩ, shunt

    • DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror

    • DRV8231: 4.5-V to 33-V, 600-mΩ, shunt

    • DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror

  • High output current capability: 3.7-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated IPROPI current sensing for stall detection and current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Auto-retry overcurrent protection (OCP)
    • Thermal shutdown (TSD)

The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall events without interaction from a microcontroller.

A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.

The DRV8231A is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall events without interaction from a microcontroller.

A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.

The DRV8231A is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

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Technical documentation

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* Data sheet DRV8231A 3.7-A Brushed DC Motor Driver with Integrated Current Sense and Regulation datasheet PDF | HTML 19 Nov 2020
Technical article Using brushed motors to improve battery life and reliability in vacuum robots PDF | HTML 17 Jul 2019

Design & development

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Evaluation board

DRV8251AEVM — DRV8251A motor driver evaluation module

The DRV8251A evaluation module (EVM) allows for easy evaluation of the DRV8251A device. The EVM has been programmed and configured to work out of the box and begin spinning motors right away.

The DRV8251A is a 4.5V to 48-V rated single H-bridge driver capable of driving up to 3.7 A. The EVM allows (...)

User guide: PDF
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Package Pins CAD symbols, footprints & 3D models
HSOIC (DDA) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian
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