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DRV8256

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48V, 8A H-bridge motor drivers with integrated current sense and smart tune technology

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 4.5 Vs (Max) (V) 48 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 open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Brushed DC (BDC) motor drivers

Features

  • 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: 5-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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open-in-new Find other Brushed DC (BDC) motor drivers

Description

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.

open-in-new Find other Brushed DC (BDC) motor drivers
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet DRV8256E/P H-Bridge Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet Dec. 14, 2020
Application note Advantages of Integrated Current Sensing (Rev. A) Oct. 09, 2020
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

Design & development

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

Hardware development

EVALUATION BOARD Download
75
Description

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 (...)

Features
  • 4.5-V to 48-V operating voltage range
  • Up to 1-A peak current
  • PWM control input interface
  • Integrated current sense
  • Selectable current regulation decay mode
EVALUATION BOARD Download
75
Description

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 4.5 (...)

Features
  • 4.5-V to 48-V operating voltage range
  • Up to 1-A peak current
  • PWM control input interface
  • Integrated current sense
  • Selectable current regulation decay mode

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 28 View options
VQFN (RGE) 24 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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