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A4935KJPTR-T

A4935KJPTR-T

Allegro MicroSystems
Motor Driver Power MOSFET PWM 48-LQFP-EP (7x7)
Active12,760 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The A4935KJPTR-T is an automotive-grade MOSFET pre-driver designed for three-phase brushless DC (BLDC) motor control. It operates with a wide load voltage range from 5.5V to 50V and features an integrated charge pump that allows for full gate drive at supply voltages as low as 7V.

Why Choose This Part

This controller offers extensive diagnostic outputs and cross-conduction protection to ensure system safety in harsh environments. It includes an uncommitted current sense amplifier and is compatible with both 3.3V and 5V logic, simplifying the interface between the power stage and the microcontroller.

Applications

Automotive Electric Power Steering (EPS)
Provides high-current gate drive for the power stage in critical vehicle steering systems with high reliability.
Engine Cooling Fans
Efficiently manages variable speed BLDC fans for thermal management in automotive engine bays.
Electric Water and Oil Pumps
Drives the brushless motors used in modern powertrain auxiliary cooling and lubrication systems.
Industrial Robotics
Utilizes the integrated current sense amplifier and SPI interface for precise torque and position control in robotic actuators.

Key Specifications

Function Controller - Commutation, Direction Management
Interface PWM
Technology Power MOSFET
Mounting Type Surface Mount
Package / Case 48-LQFP Exposed Pad
Voltage - Load 5.5V ~ 50V
Voltage - Supply 3V ~ 5.5V
Motor Type - AC, DC Brushless DC (BLDC)
Output Configuration Pre-Driver - Half Bridge (3)
Operating Temperature -40degC ~ 150degC (TA)
Supplier Device Package 48-LQFP-EP (7x7)

Getting Started

Designers should focus on the PCB layout of the 48-LQFP exposed pad for thermal dissipation and minimize trace inductance for high-speed PWM switching. An external microcontroller with an SPI peripheral is required to configure the internal registers and monitor diagnostic status.

Also Consider

DRV8301 TITexas Instruments - Offers an integrated buck converter and two current sense amplifiers for a more compact system design.

Categories

Automotive > EV & Power Electronics