Product details

Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 50 Peak output current (A) 4.1 RDS(ON) (HS + LS) (mOhms) 450 Sleep current (uA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, 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) 50 Peak output current (A) 4.1 RDS(ON) (HS + LS) (mOhms) 450 Sleep current (uA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, Low-Power Sleep Mode Rating Catalog Operating temperature range (C) -40 to 150
HSOIC (DDA) 8 19 mm² 4.9 x 3.9
  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 48-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: 4.1-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Latched overcurrent protection (OCP)
    • Thermal shutdown (TSD)
  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 48-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: 4.1-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Latched overcurrent protection (OCP)
    • Thermal shutdown (TSD)

The DRV8251 device is an integrated motor driver with N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

The DRV8251 implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.

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 DRV8251 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 DRV8251 device is an integrated motor driver with N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

The DRV8251 implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.

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 DRV8251 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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Type Title Date
* Data sheet DRV8251 4.1-A Brushed DC Motor Driver with Integrated Current Regulation datasheet 18 Nov 2020
Certificate DRV8251EVM EU RoHS Declaration of Comformity (DoC) 09 Nov 2021
User guide DRV8251 Evaluation Module User's Guide 25 May 2021
Technical article Why are you still driving automotive motors with relays? 13 Jul 2017
Technical article The story of motor-drive integration 09 Jan 2017
Technical article How to create a dynamic power solution for stepper motors, relays and LEDs 01 Nov 2016
Technical article How to avoid motor and system overvoltage using AVS technology without external components 14 Oct 2016

Design & development

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Evaluation board

DRV8251EVM — DRV8251 motor driver evaluation module

The DRV8251 evaluation module (EVM) allows for easy evaluation of the DRV8251 device. The EVM has been programmed and configured to work out of the box and begin spinning motors right away.

The DRV8251 is a 4.5V to 48-V rated single H-bridge driver capable of driving up to 3.7 A. The EVM allows for (...)

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