A4933KJPT – 3-Phase Power Driver IC for Automotive Steering Gear Control Module

The A4933KJPT is a three-phase power driver IC specifically designed for automotive steering gear electronic control units.

It integrates six N-channel power MOSFETs in a bridge configuration, capable of driving brushless DC motors in electric power steering systems.
This device supports motor currents up to several amperes depending on PCB thermal design, providing efficient and quiet motor commutation.

Operating voltage ranges from 5.5V to 50V, making it suitable for both 12V and 24V vehicle electrical architectures.
Integrated current sensing amplifiers allow precise motor phase current monitoring for closed-loop control algorithms.

Protection features include overcurrent shutdown, undervoltage lockout, overtemperature warning and shutdown, as well as crossover current protection.
Diagnostic outputs report fault conditions to the main microcontroller, enhancing system reliability.

The package is a compact 48-pin LQFP, optimized for automotive PCBs with limited board space.
It meets AEC-Q100 qualification, ensuring stable operation from -40°C to 150°C junction temperature.

Common applications include electric power steering (EPS) control modules, steering column actuators, and other brushless DC motor drives requiring high integration and robustness.

For demanding automotive steering applications, the A4933KJPT delivers high power density, smart protection, and smooth motor control.