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DRV8436

ACTIVE

48-V, 1.5-A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping

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Data sheet

DRV8436

ACTIVE
Data sheet Order now

Product details

Number of full bridges 2 Vs (min) (V) 4.5 Vs ABS (max) (V) 50 Full-scale current (A) 1.5 Peak output current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 900 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features 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) 50 Full-scale current (A) 1.5 Peak output current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 900 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • PWM microstepping stepper motor driver
    • Simple STEP/DIR interface
    • Up to 1/256 Microstepping indexer
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • Smart tune decay technology, Fixed slow, and mixed decay options
  • 4.5 to 48-V Operating supply voltage range
  • Low RDS(ON): 900 mΩ HS + LS at 24 V, 25°C
  • High current capacity per bridge: 2.4 A peak, 1.5 A Full-Scale, 1.1 A rms
  • Configurable off-time PWM chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs.
  • Supports 1.8-V, 3.3-V, 5.0-V logic inputs
  • Low-current sleep mode (2 µA)
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)
  • PWM microstepping stepper motor driver
    • Simple STEP/DIR interface
    • Up to 1/256 Microstepping indexer
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • Smart tune decay technology, Fixed slow, and mixed decay options
  • 4.5 to 48-V Operating supply voltage range
  • Low RDS(ON): 900 mΩ HS + LS at 24 V, 25°C
  • High current capacity per bridge: 2.4 A peak, 1.5 A Full-Scale, 1.1 A rms
  • Configurable off-time PWM chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs.
  • Supports 1.8-V, 3.3-V, 5.0-V logic inputs
  • Low-current sleep mode (2 µA)
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)

The DRV8436 is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8436 is capable of driving up to 1.1-A rms (dependent on PCB design).

The DRV8436 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8436 is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8436 is capable of driving up to 1.1-A rms (dependent on PCB design).

The DRV8436 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.
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Important information

Three evaluation modules are available. Request now

Note: DRV8436 HTSSOP has undergone a pin out change from 24 pin to 28 pin making it P2P with the rest of the DRV84xx family. Functionally both the 24 pin and 28 pin version of the DRV8436 are the same.

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Technical documentation

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Type Title Date
* Data sheet DRV8436 Stepper Driver With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and Smart Tune Technology datasheet (Rev. B) PDF | HTML 20 Apr 2021
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20 Jun 2022
Application note How to Drive Unipolar Stepper Motor with the DRV8xxx PDF | HTML 03 Dec 2021
Application note How to Improve Motion Smoothness and Accuracy of Stepper Motors (Rev. A) PDF | HTML 11 Oct 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 19 Jan 2021
User guide DRV84xxEVM GUI User’s Guide (Rev. A) 18 May 2020
Application note How to Reduce Audible Noise in Stepper Motors PDF | HTML 21 Apr 2020
Technical article Drive unipolar stepper motors as bipolar stepper motors with a simple wiring recon PDF | HTML 09 Apr 2020
EVM User's guide DRV8436EVM User's Guide (Rev. A) 02 Aug 2019
White paper How smart tune regulates current in stepper motors (Rev. A) 19 Mar 2019
Application brief Smart Tuning for Efficient Stepper Driving 20 Nov 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application brief PowerPAD™ Made Easy (Rev. B) 12 May 2004

Design & development

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Evaluation board

DRV8436EVM — DRV8436 stepper drivers evaluation module

The DRV8436 evaluation module (EVM) allows easy evaluation of the DRV8436 device.

The DRV8436 devices are integrated motor-driver solutions for bipolar stepper motors. The device integrates two N-channel power MOSFET H-bridges, integrated current sense and regulation circuitry, and a microstepping (...)

User guide: PDF
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HTSSOP (PWP) 28 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian
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