A3984SLP-T Equivalent & Substitute Parts

Part Overview

The A3984SLP-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 supply voltage range of 3V to 5.5V with load voltage capability from 8V to 35V, delivering 2A output current per channel. The A3984SLP-T is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

A3984SLP-T

Allegro MicroSystemsIn Stock: 20127A3984SLP-T Datasheet

Current PartRFQ

A3984SLPTR-T

Allegro MicroSystemsIn Stock: 13722A3984SLPTR-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The A3984SLPTR-T qualifies as a direct substitute for the A3984SLP-T based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

Motor driver function and output configuration remain unchanged (Bipolar Stepper, Half Bridge 4-channel, Fully Integrated Control and Power Stage).

Electrical specifications are identical: Supply voltage 3V to 5.5V, load voltage 8V to 35V, output current 2A, step resolution options 1/1/2/1/4/1/16, operating temperature -20°C to 150°C.

Package and pinout are identical: 24-TSSOP with exposed pad, surface mount configuration.

Interface and technology specifications match: Logic interface, DMOS technology.

Compliance certifications are equivalent: Both parts are ROHS3 compliant and REACH unaffected.

The primary distinction is product status: A3984SLPTR-T is active, while A3984SLP-T is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The A3984SLPTR-T is the direct substitute for the A3984SLP-T. Both parts maintain identical electrical performance, pinout, and package specifications. The A3984SLPTR-T is the preferred selection for new designs and production applications due to its active product status and continued manufacturer support. Both parts satisfy ROHS3 compliance and REACH requirements, ensuring regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can A3984SLPTR-T replace A3984SLP-T in existing designs?

A: Yes. The A3984SLPTR-T is electrically and mechanically identical to the A3984SLP-T. Pinout, package, and all functional specifications are equivalent. No circuit modifications are required.

Q: What is the difference between A3984SLP-T and A3984SLPTR-T?

A: The primary difference is product status. A3984SLP-T is obsolete, while A3984SLPTR-T is active. Packaging differs: A3984SLP-T uses standard packaging, while A3984SLPTR-T is available in Cut Tape and Digi-Reel formats. Moisture sensitivity levels differ slightly (MSL 1 vs. MSL 2), but both are suitable for standard industrial applications.

Q: Are there any compatibility concerns when switching from A3984SLP-T to A3984SLPTR-T?

A: No compatibility concerns exist. Both parts use identical 24-TSSOP packages with exposed pads and surface mount configuration. Electrical specifications, voltage ranges, current ratings, and temperature operating ranges are identical.

Q: Which part should be used for new production?

A: Use A3984SLPTR-T for all new designs and production. This part is active and supported by Allegro MicroSystems, ensuring long-term availability and technical support.

Q: Do both parts meet the same compliance standards?

A: Yes. Both A3984SLP-T and A3984SLPTR-T are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.