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A3985SLDTR-T The A3985SLDTR-T is a bipolar stepper motor driver controller from Allegro Microsystems. It supports 12V to 50V supply voltage and SPI interface in a 38-TSSOP surface mount package.
Mfr Part #:

A3985SLDTR-T

Available from 2 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The A3985SLDTR-T is a bipolar stepper motor driver controller from Allegro Microsystems. It supports 12V to 50V supply voltage and SPI interface in a 38-TSSOP surface mount package.
✓ Total Stock: 3,200 pcs
$ Price Range: $2.25

A3985SLDTR-T Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Seba Components ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
1,200 pcs
On Request
1200 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.

A3985SLDTR-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
Step Resolution
Supplier Device Package
Supply Voltage
Technology
Voltage
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A3985SLDTR-T Description

Short technical summary and product information.

The A3985SLDTR-T is a bipolar stepper motor driver controller from Allegro Microsystems. It supports commutation and direction management for general purpose motor drive applications. The device uses a pre-driver half bridge output configuration with four half bridges and power MOSFET technology.

 

The device operates with a supply voltage from 12V to 50V. Its logic supply voltage and logic input/output voltage have a maximum rating of 7V. The SPI interface is used for control, and step resolution supports full-step and half-step (1, 1/2). Integrated features include fixed off-time PWM current control, synchronous rectification, cross-conduction protection, adjustable mixed decay, low-current idle mode, and a dual 6-bit DAC current reference.

 

The A3985SLDTR-T is rated for an operating temperature range of -20°C to 85°C. It is available in 38-TSSOP and 38-TFSOP surface mount packages. Tape and reel packaging is provided at 4000 pieces per reel.

A3985SLDTR-T Quick Information

Product Type: MOSFET Driver
Canonical Name: A3985SLDTR-T Dual Full-Bridge MOSFET Driver

A3985SLDTR-T Compliance

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

A3985SLDTR-T Estimated Pricing

Qty Low High
1+ $2.25 $2.25

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

A3985SLDTR-T Features

  • Operates from 12V to 50V supply.
  • Supports SPI interface control.
  • Full-step and half-step resolution.
  • Fixed off-time PWM current control.
  • Available in 38-TSSOP package.

A3985SLDTR-T Applications

  • Drives bipolar stepper motors in industrial applications
  • Controls 2-phase brushless DC motors
  • Drives solenoid actuators for precision positioning
  • Used in torque motor control systems
  • Suitable for industrial automation motor drivers

A3985SLDTR-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the A3985SLDTR-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 is the A3985SLDTR-T available in?

The device is available in 38-TSSOP and 38-TFSOP surface mount packages.

What is the maximum logic supply voltage?

The maximum logic supply voltage is 7V.

What motor types does the A3985SLDTR-T support?

It drives bipolar stepper motors.

What interface does the A3985SLDTR-T use?

It uses an SPI interface.

What step resolutions are supported?

Full-step and half-step (1, 1/2) resolutions are supported.

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