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Product Detailed Parameters
- Description：IC MTR DRV BIPOLR 3-5.5V 24TSSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：Logic
- Technology：DMOS
- Step Resolution：1, 1/2, 1/4, 1/8
- Applications：General Purpose
- Current - Output：1A
- Voltage - Supply：3V ~ 5.5V
- Voltage - Load：8V ~ 35V
- Operating Temperature：-20°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：24-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The A4985SLPTR-T is a fully integrated bipolar stepper motor driver manufactured by Allegro Microsystems. It operates with a supply voltage range of 3V to 5.5V for logic and 8V to 35V for the load, delivering an output current of 1A. The device utilizes DMOS technology and supports microstepping resolutions of 1, 1/2, 1/4, and 1/8 steps. It is housed in a 24-pin TSSOP package with an exposed pad (TSSOP-EP) and functions within a temperature range of -20°C to +85°C.
Feature Summary
- Integrates control logic and power stage into a single solution
- Supports variable microstepping for smooth motion control
- Includes built-in overcurrent protection mechanisms
Applications
- General purpose stepper motor control systems
- Office automation equipment
- Security systems requiring precise positioning
Procurement Notes
Verify the specific suffix SLPTR-T against the official datasheet to confirm the tape and reel packaging configuration. Ensure the ordering quantity aligns with the manufacturer's standard reel size requirements. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning.
Selection Notes
Select this component when a compact bipolar stepper driver with integrated logic is required. It is suitable for applications needing 1A output current and multiple microstepping options. Verify that the system voltage falls within the specified 8V to 35V load range and that thermal management accommodates the TSSOP-EP package constraints.
Part Context
This part belongs to the A498x family of stepper motor drivers from Allegro MicroSystems. These devices are designed to simplify the interface between microcontrollers and stepper motors by combining all necessary drive circuitry on one chip. The family typically offers various current ratings and package options to suit different application densities.
Replacement Considerations
Consult official Allegro MicroSystems documentation for verified cross-reference part numbers. Do not assume functional compatibility with other stepper drivers without verifying pinout, voltage ratings, and control logic specifications.
