A3983SLP-T Equivalent & Substitute Parts

Part Overview

The A3983SLP-T is a bipolar stepper motor driver IC manufactured by Allegro MicroSystems, designed for fully integrated motor control and power stage applications. This device operates across a 3V to 5.5V supply voltage range and supports load voltages from 8V to 35V, making it suitable for general-purpose stepper motor applications requiring microstepping capability.

The A3983SLP-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this motor driver architecture.

Substiute Parts

A3983SLP-T

Allegro MicroSystemsIn Stock: 1576A3983SLP-T Datasheet

Current PartRFQ

A3983SLPTR-T

Allegro MicroSystemsIn Stock: 36600A3983SLPTR-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A3983SLP-T is determined by strict equivalence across the following critical parameters:

Motor driver architecture and control capability (bipolar stepper motor driver with fully integrated control and power stage), output configuration (four half-bridge outputs), interface type (logic-level control), technology platform (DMOS), microstepping resolution support (1, 1/2, 1/4, 1/8 step modes), output current rating (2A), supply voltage range (3V to 5.5V), load voltage range (8V to 35V), operating temperature range (-20°C to 150°C junction temperature), package form factor (24-TSSOP with exposed pad), and regulatory compliance (ROHS3 and REACH status).

The A3983SLPTR-T meets all these criteria and is classified as the manufacturer-recommended substitute. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The A3983SLPTR-T is the manufacturer-recommended substitute for the obsolete A3983SLP-T. Both parts maintain identical electrical specifications, package geometry, and regulatory compliance status. The A3983SLPTR-T is currently in active production with significantly higher inventory availability (36,587 units versus 1,494 units for the original part).

Selection between these parts should be based on product lifecycle requirements. For new designs or ongoing production requiring long-term component availability, the A3983SLPTR-T is the appropriate choice. Both parts satisfy ROHS3 and REACH compliance requirements and are suitable for applications requiring bipolar stepper motor control across the specified voltage and temperature ranges.

The difference in Moisture Sensitivity Level (MSL 1 versus MSL 2) reflects standard industry variation in packaging and storage conditions but does not affect functional equivalence or electrical performance in equivalent operating environments.

Frequently Asked Questions (FAQ)

Q: Are the A3983SLP-T and A3983SLPTR-T electrically identical?

A: Yes. Both parts are manufactured by Allegro MicroSystems and share identical electrical specifications, including output current (2A), supply voltage range (3V to 5.5V), load voltage range (8V to 35V), step resolution modes (1, 1/2, 1/4, 1/8), and operating temperature range (-20°C to 150°C junction temperature).

Q: Can the A3983SLPTR-T be used as a direct replacement in existing designs?

A: Yes. The A3983SLPTR-T is pin-compatible and functionally equivalent. Both parts use the 24-TSSOP package with identical pinout and exposed pad configuration. No circuit modifications are required for substitution.

Q: What is the significance of the different Moisture Sensitivity Levels?

A: MSL 1 (unlimited) and MSL 2 (1 year) reflect different packaging and storage specifications. This difference does not affect electrical performance or functional compatibility. Storage and handling procedures should follow the specifications for the specific part number being used.

Q: Why is the A3983SLP-T classified as obsolete?

A: The A3983SLP-T has been superseded by the A3983SLPTR-T in the manufacturer's product line. The A3983SLPTR-T is the active production equivalent and is recommended for all new applications and ongoing procurement.

Q: Are there any differences in regulatory compliance between these parts?

A: No. Both the A3983SLP-T and A3983SLPTR-T maintain identical ROHS3 compliance and REACH unaffected status. Both parts meet the same regulatory requirements for electronic component manufacturing and use.