A3932SLDTR-T Equivalent & Substitute Parts

Part Overview

The A3932SLDTR-T is a motor driver integrated circuit designed for brushless DC (BLDC) motor control applications. It functions as a commutation and direction management controller with a pre-driver half-bridge output configuration, operating across a 18V to 50V supply voltage range. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

A3932SLDTR-T

Allegro MicroSystemsIn Stock: 1520A3932SLDTR-T Datasheet

Current PartRFQ

A3938SLDTR-T

Allegro MicroSystemsIn Stock: 3557A3938SLDTR-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A3932SLDTR-T is determined by strict equivalence across the following parameters:

• Motor control function (BLDC commutation and direction management)
• Output configuration (Pre-Driver - Half Bridge with 3 outputs)
• Interface protocol (Parallel and PWM control)
• Supply voltage range (18V ~ 50V)
• Operating temperature range (-20°C ~ 85°C)
• Package type (38-TFSOP surface mount)
• Technology platform (Power MOSFET pre-driver)

The A3938SLDTR-T meets all these criteria and is classified as the manufacturer-recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The A3938SLDTR-T is the direct functional equivalent of the A3932SLDTR-T. The primary distinction is product status: the A3932SLDTR-T is obsolete while the A3938SLDTR-T is active. Both devices share identical electrical specifications, package geometry, and regulatory compliance certifications (ROHS3, REACH Unaffected, EAR99). Selection of the A3938SLDTR-T ensures continued availability and support for BLDC motor driver applications requiring 18V to 50V operation with parallel PWM control interfaces.

Frequently Asked Questions (FAQ)

Q: Can the A3938SLDTR-T directly replace the A3932SLDTR-T in existing designs?

A: Yes. Both devices are housed in the 38-TFSOP package with identical pinout, electrical ratings, and functional specifications. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The A3932SLDTR-T is classified as obsolete. The A3938SLDTR-T provides the same functionality with active product status and ongoing manufacturer support.

Q: Are there differences in supply voltage or temperature operating ranges?

A: No. Both parts operate across 18V to 50V supply voltage and -20°C to 85°C temperature ranges.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99.

Q: Is the package footprint identical?

A: Yes. Both use the 38-TFSOP package with 0.173" width (4.40mm). PCB layouts are directly compatible.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have MSL 2 rating with a 1-year floor life requirement.