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A4989SLDTR-T The Allegro MicroSystems A4989SLDTR-T is a Dual Full-Bridge MOSFET Driver IC designed for high-power industrial bipolar stepper motors. It operates over a wide supply voltage range.
Mfr Part #:

A4989SLDTR-T

Available from 3 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro MicroSystems A4989SLDTR-T is a Dual Full-Bridge MOSFET Driver IC designed for high-power industrial bipolar stepper motors. It operates over a wide supply voltage range.
✓ Total Stock: 2,383 pcs
$ Price Range: $2.25

A4989SLDTR-T Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,900 pcs
On Request
1900 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
480 pcs
On Request
480 pcs On Request 1 On Request On Request 22+ On Request On Request
Braun Electronic Components ✓
Non-Authorised Inventory information
3 pcs
On Request
3 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A4989SLDTR-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
SVHC Present
Step Resolution
Supplier Device Package
Supplier Package
Technology
Voltage
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A4989SLDTR-T Description

Short technical summary and product information.

The Allegro MicroSystems A4989SLDTR-T is a Dual Full-Bridge MOSFET Driver IC featuring an integrated microstepping translator. It is suitable for driving higher power industrial bipolar two-phase stepper motors, supporting supply voltages from 12V to 50V.

 

This device integrates sinusoidal DACs for current control and a fixed off-time PWM current controller. It offers microstepping control at full-, half-, quarter-, and sixteenth-step resolutions, with adjustable decay modes for reduced motor noise and improved accuracy. The interface is a simple two-wire step and direction control, minimizing microcontroller complexity.

 

Key features include dual full-bridge gate drive for N-channel MOSFETs, synchronous rectification, cross-conduction protection, and integrated circuit protection such as thermal shutdown and undervoltage lockout. The component is supplied in a 38-pin TSSOP package, suitable for surface mounting.

 

This driver is designed for applications requiring precise control of stepper motors in industrial settings. Its robust features and wide operating voltage range make it a versatile choice for various motor control systems.

A4989SLDTR-T Quick Information

Product Type: Motor Driver IC
Canonical Name: Dual Full-Bridge MOSFET Driver with Microstepping Translator
Subcategory: MOSFET Driver

A4989SLDTR-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A4989SLDTR-T Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

A4989SLDTR-T Features

  • Dual full-bridge gate driver for N-channel MOSFETs.
  • Operates over 12V to 50V supply voltage range.
  • Integrated microstepping translator for precise control.
  • Fixed off-time PWM current control.
  • 38-pin TSSOP package for surface mounting.

A4989SLDTR-T Applications

  • Drives higher power industrial stepper motors.
  • Suitable for microstepping applications.
  • Reduces audible motor noise.
  • Increases step accuracy.
  • Reduces power dissipation.

A4989SLDTR-T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the A4989SLDTR-T?

The supply voltage range is 12V to 50V.

What is the operating temperature range?

The operating temperature range is -20°C to 85°C.

What package type is the A4989SLDTR-T supplied in?

It is supplied in a 38-TSSOP package.

What step resolutions does this motor driver support?

It supports full, half, quarter, and sixteenth step resolutions.

What type of motor does the A4989SLDTR-T drive?

It is designed to drive bipolar stepper motors.

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