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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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Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 4.5 Vs (Max) (V) 48 Full-scale current (A) 1.5 Peak output current (A) 2.5 RDS(ON) (HS + LS) (mOhms) 900 Sleep current (uA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Micro-stepping levels 256 Features Integrated Current Sensing, Smart Tune open-in-new Find other Stepper motor drivers

Package | Pins | Size

HTSSOP (PWP) 28 VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Stepper motor drivers

Features

  • 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)

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Description

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, fast, 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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Sample availability and other info

PWP package is in preview. Preproduction samples are available (PDRV8436PWPR).  Request now

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 is the same.

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
NEW DRV8434 ACTIVE 48-V, 2.5-A bipolar stepper motor driver with integrated current sensing and 1/256 microstepping 48V, 2.5A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet DRV8436 Stepper Driver With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and Smart Tune Technology datasheet (Rev. A) Aug. 28, 2020
Application note Smart Tune for Quiet and Smooth Stepper Motor Operation (Rev. A) Oct. 07, 2020
White paper Stepper Motors Made Easy with Smart Tune (Rev. C) Oct. 07, 2020
User guide DRV84xxEVM GUI User’s Guide (Rev. A) May 18, 2020
Technical articles Drive unipolar stepper motors as bipolar stepper motors with a simple wiring reconfiguration Apr. 09, 2020
Application note Various Reference Voltage Driving Techniques for Motor Drive Current Regulation (Rev. A) Jan. 27, 2020
Technical articles How stepper motors improve noise and efficiency in automotive system design Nov. 19, 2019
Application note Open Load Detection in Intergrated Drivers (Rev. A) Nov. 07, 2019
User guide DRV8436EVM User's Guide (Rev. A) Aug. 02, 2019
White paper How smart tune regulates current in stepper motors (Rev. A) Mar. 19, 2019
Application note Advantages of Integrated Current Sensing Jan. 07, 2019
Application note Smart Tuning for Efficient Stepper Driving Nov. 20, 2018
Technical articles Getting smart about tuning your stepper motor Aug. 23, 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 2018
Technical articles The story of motor-drive integration Jan. 09, 2017
Application note PowerPAD™ Made Easy (Rev. B) May 12, 2004

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 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 (...)

Features
  • 4.5-V to 48-V operating voltage range
  • 2.5-A peak current
  • A simple STEP/DIR interface
  • Integrated current sense and microstepping indexer
  • Smart tune technology

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
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  • Qualification summary
  • Ongoing reliability monitoring

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