A3935KJP-T

Overview

The A3935KJP-T is a three-phase brushless DC motor controller manufactured by Allegro Microsystems. It operates within a supply voltage range of 4.75 V to 5.25 V and supports load voltages from 7 V to 40 V. The device features an output current capability of 40 mA and consumes 7 mA in operating power. Designed for surface mount applications, it utilizes a 48-pin LQFP package with an exposed pad. The component functions reliably across an extended temperature range, supporting minimum operating temperatures of -40°C and maximum operating temperatures up to +150°C.

Feature Summary

• Integrated control for three-phase brushless DC motors
• Supports high-side and low-side switching configurations
• Operates with wide load voltage tolerance

Applications

• Brushless DC motor control systems
• Motion control applications
• Ignition controllers

Procurement Notes

Verify the specific suffix and package variant when sourcing, as availability may vary between tape-and-reel and cut-tape formats. Confirm that the intended application falls within the specified 4.75 V to 5.25 V logic supply range. Ensure thermal management strategies account for the LQFP-48 package characteristics during operation at elevated temperatures up to 150°C.

Selection Notes

Select this component for designs requiring integrated three-phase BLDC control without external microcontrollers. It is suitable for applications needing robust performance in high-temperature environments. Consider the 40 mA output drive capability when matching motor coil requirements. Verify compatibility with the required load voltage range of 7 V to 40 V for the motor stage.

Part Context

This part belongs to the A3935 series of motor drivers and controllers. It is functionally related to the A4933 series, which serves as a suggested replacement device in some contexts. The component is categorized under PMIC and Motor/Motion/Ignition Controllers. It shares design lineage with other Allegro microstepping and BLDC driver solutions.

Replacement Considerations

The A4933KJPTR-T is identified as a suggested replacement device. Verify pinout compatibility and electrical specifications before substitution.