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DRV8256

ACTIVE

50-V, 8-A H-bridge motor drivers with integrated current sense and smart tune technology

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Data sheet
50-V, 8-A H-bridge motor drivers with integrated current sense and smart tune technology

DRV8256

ACTIVE
Data sheet Order now

Product details

Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 50 Peak output current (A) 8 RDS(ON) (HS + LS) (mOhms) 165 Sleep current (uA) 2 Control mode PH/EN, PWM Control interface Hardware (GPIO) Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (C) -40 to 125
Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 50 Peak output current (A) 8 RDS(ON) (HS + LS) (mOhms) 165 Sleep current (uA) 2 Control mode PH/EN, PWM Control interface Hardware (GPIO) Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (C) -40 to 125
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HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 VQFN (RGE) 24 16 mm² 4 x 4
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  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed-DC motor
    • Two unidirectional brushed DC motors
  • Integrated current sensing and regulation
  • 4.5 V to 48 V Operating supply voltage range
  • Multiple control interface options
    • PHASE/ENABLE (PH/EN)
    • PWM (IN/IN)
  • Smart tune, fast and mixed decay options
  • Low RDS(ON): 165 mΩ HS + LS at 24 V, 25°C
  • High Output Current Capability: 6.4-A peak
  • Limits inrush current of brushed-DC motors
  • Configurable Off-Time PWM Chopping
    • 7, 16, 24 or 32 µs
  • Supports 1.8 V, 3.3 V, 5.0 V logic inputs
  • Low-current sleep mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)
  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed-DC motor
    • Two unidirectional brushed DC motors
  • Integrated current sensing and regulation
  • 4.5 V to 48 V Operating supply voltage range
  • Multiple control interface options
    • PHASE/ENABLE (PH/EN)
    • PWM (IN/IN)
  • Smart tune, fast and mixed decay options
  • Low RDS(ON): 165 mΩ HS + LS at 24 V, 25°C
  • High Output Current Capability: 6.4-A peak
  • Limits inrush current of brushed-DC motors
  • Configurable Off-Time PWM Chopping
    • 7, 16, 24 or 32 µs
  • Supports 1.8 V, 3.3 V, 5.0 V logic inputs
  • Low-current sleep mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)
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The DRV8256E/P devices are single H-bridge motor drivers for a wide variety of industrial applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, and protection circuitry.

Integrated current sensing allows the driver to regulate the motor inrush current during start up and high load events. A current limit can be set with an adjustable external voltage reference. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost. A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry.

Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.

The DRV8256E/P devices are single H-bridge motor drivers for a wide variety of industrial applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, and protection circuitry.

Integrated current sensing allows the driver to regulate the motor inrush current during start up and high load events. A current limit can be set with an adjustable external voltage reference. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost. A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry.

Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.

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Technical documentation

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Type Title Date
* Data sheet DRV8256E/P H-Bridge Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet (Rev. A) 12 Apr 2021
Application note Advantages of Integrated Current Sensing (Rev. A) 09 Oct 2020
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

DRV8256EEVM — DRV8256 PHASE/ENABLE control interface H-bridge motor driver evaluation module

The DRV8256E evaluation mode (EVM) allows easy evaluation of the DRV8256E device.

The DRV8932E integrates two N-channel power MOSFET H-bridges and integrated current sense and regulation circuirty. The DRV8256E device operates off a single power supply and support a wide input supply range from 4.5 (...)

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Evaluation board

DRV8256PEVM — DRV8256 PWM control interface H-bridge motor driver evaluation module

The DRV8256P evaluation module (EVM) allows easy evaluation of the DRV8256P device.

The DRV8932P integrates two N-channel power MOSFET H-bridges and integrated current sense and regulation circuirty. The DRV8256P device operates off a single power supply and support a wide input supply range from (...)

document-pdfAcrobat User guide
In stock
Limit: 5
Package Pins Download
HTSSOP (PWP) 28 View options
VQFN (RGE) 24 View options

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