A3936SEDTR

Overview

The A3936SEDTR is a fully integrated brushless DC motor controller and driver manufactured by Allegro MicroSystems. It utilizes DMOS technology to provide three half-bridge outputs capable of delivering up to 3A per phase. The device operates with a supply voltage range of 3V to 5.5V and supports load voltages from 9V to 50V. It features a parallel interface and is housed in a 44-PLCC package measuring 16.59x16.59 mm. The component is designed for operation within a junction temperature range of -20°C to 150°C.

Feature Summary

• Integrates control logic and power stage for BLDC motor commutation
• Supports parallel interface for simplified system integration
• Provides high current output capability per phase

Applications

• Brushless DC motor control systems
• General purpose motor drive applications

Procurement Notes

Verify the specific suffix 'SEDTR' against official manufacturer documentation, as standard listings often reference 'A3936SED'. Confirm RoHS compliance status, as source data indicates non-compliance for the base part. Check current product lifecycle status, as multiple sources indicate this component may be discontinued or obsolete. Ensure the 44-PLCC package dimensions match your PCB footprint requirements.

Selection Notes

Select this component when a fully integrated solution for BLDC motors is required without external gate drivers. The parallel interface suits designs where pin count is not the primary constraint. Verify that the 3A output current meets the motor phase requirements. Consider the 44-pin package size if board space is limited, as smaller alternatives like the A4936 exist.

Part Context

The A3936 series represents Allegro's family of fully integrated BLDC motor controllers. This specific variant uses DMOS technology and a 44-lead plastic leaded chip carrier (PLCC) package. It differs from other series members by its specific interface type and packaging, targeting applications requiring robust power integration in a single IC.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.