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DRV8426E

ACTIVE

35-V, 1.5-A bipolar stepper or dual brushed  motor driver with integrated current sensing

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Data sheet
35-V, 1.5-A bipolar stepper or dual brushed  motor driver with integrated current sensing

DRV8426E

ACTIVE
Data sheet Order now

Product details

Number of full bridges 2 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 35 Full-scale current (A) 1.5 Peak output current (A) 2.5 RDS(ON) (HS + LS) (mOhms) 900 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 2 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 35 Full-scale current (A) 1.5 Peak output current (A) 2.5 RDS(ON) (HS + LS) (mOhms) 900 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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  • Dual H-bridge motor driver
    • One bipolar stepper motor
    • Dual bidirectional brushed-DC motors
    • Four unidirectional brushed-DC motors
  • Integrated current sense functionality
    • No sense resistors required
    • ±5% Full-scale current accuracy
  • 4.5- to 33-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): 900 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity Per Bridge
    • 2.5-A peak (brushed), 1.5-A Full-Scale (stepper)

    Pin to pin compatible with -

  • 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 electromagnetic interference (EMI)
  • Inrush current limiting in brushed-DC applications
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)
  • Dual H-bridge motor driver
    • One bipolar stepper motor
    • Dual bidirectional brushed-DC motors
    • Four unidirectional brushed-DC motors
  • Integrated current sense functionality
    • No sense resistors required
    • ±5% Full-scale current accuracy
  • 4.5- to 33-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): 900 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity Per Bridge
    • 2.5-A peak (brushed), 1.5-A Full-Scale (stepper)

    Pin to pin compatible with -

  • 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 electromagnetic interference (EMI)
  • Inrush current limiting in brushed-DC applications
  • Small package and footprint
  • 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 DRV8426E/P devices are dual H-bridge motor drivers for a wide variety of industrial applications. The devices can be used for driving two DC motors, or a bipolar stepper motor.

The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, charge pump regulator, current sensing and regulation, and protection circuitry. 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).

The DRV8426E/P is capable of driving a stepper motor with up to 1.5-A full scale or brushed motors with up to 2.5-A peak (dependent on PCB design).

The DRV8426E/P devices are dual H-bridge motor drivers for a wide variety of industrial applications. The devices can be used for driving two DC motors, or a bipolar stepper motor.

The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, charge pump regulator, current sensing and regulation, and protection circuitry. 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).

The DRV8426E/P is capable of driving a stepper motor with up to 1.5-A full scale or brushed motors with up to 2.5-A peak (dependent on PCB design).

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Technical documentation

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Type Title Date
* Data sheet DRV8426E Dual H-Bridge Motor Drivers With Integrated Current Sense datasheet (Rev. A) 21 Oct 2020
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) 19 Jan 2021
Application note Smart Tune for Quiet and Smooth Stepper Motor Operation (Rev. A) 01 Nov 2020
White paper Stepper Motors Made Easy with Smart Tune (Rev. C) 01 Nov 2020
User guide DRV84XX_89XX_8256X EVM GUI User's Guide (Rev. D) 30 Oct 2020
Application note Advantages of Integrated Current Sensing (Rev. A) 09 Oct 2020
Technical article Drive unipolar stepper motors as bipolar stepper motors with a simple wiring reconfiguration 09 Apr 2020
Technical article How stepper motors improve noise and efficiency in automotive system design 19 Nov 2019
Application note Open Load Detection in Intergrated Drivers (Rev. A) 07 Nov 2019
White paper How smart tune regulates current in stepper motors (Rev. A) 19 Mar 2019
Application note Smart Tuning for Efficient Stepper Driving 20 Nov 2018
Technical article Getting smart about tuning your stepper motor 23 Aug 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Technical article The story of motor-drive integration 09 Jan 2017
Application note PowerPAD™ Made Easy (Rev. B) 12 May 2004

Design & development

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

Evaluation board

DRV8426EEVM — DRV8426 PHASE/EN control interface stepper motor driver board

The DRV8426E evaluation module (EVM) allows easy evaluation of the DRV8426E device.

The DRV8426E devices are integrated motor-driver solutions for bipolar stepper motors or brushed DC motors. The device integrates two N-channel power MOSFET H-bridges, integrated current sense and regulation (...)

document-pdfAcrobat User guide
In stock
Limit: 5
Evaluation board

DRV8426PEVM — DRV8426P motor driver evaluation module

The DRV8426P evaluation module (EVM) allows easy evaluation of the DRV8426P device.

The DRV8426P devices are integrated motor-driver solutions for bipolar stepper motors or brushed DC motors. The device integrates two N-channel power MOSFET H-bridges, integrated current sense and regulation (...)

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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