The Power MOSFET / Power Stage is a critical component in the Electric Power Steering (EPS) system, which is part of the broader Chassis & Vehicle Dynamics domain within Automotive Electronics. This module plays a key role in controlling the electric motor that assists the driver in steering the vehicle. The Power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is responsible for switching high currents efficiently, enabling precise and responsive power assistance.
In modern vehicles, the EPS system enhances driving comfort, improves fuel efficiency, and increases safety by providing variable steering assistance based on speed and driving conditions. The Power Stage, often integrated with the MOSFET, amplifies the control signals from the ECU (Electronic Control Unit) to drive the motor effectively. It ensures reliable operation under various environmental conditions, including temperature fluctuations and electrical noise.
This technology is widely used in passenger cars, commercial vehicles, and electric vehicles, where smooth and accurate steering is essential. Its compact design and high performance make it suitable for both conventional and advanced driver-assistance systems (ADAS). The Power MOSFET / Power Stage contributes to the overall reliability, efficiency, and safety of the vehicle’s steering system, making it an indispensable part of modern automotive electronics.

| Series Name | Description | Manufacturer Name | Attribute Description |
|---|---|---|---|
| Renesas Electronics Corporation | N-channel MOSFET, 75A, 40V, 10mΩ Rds(on), 10V Vgs, TO-220AB package, suitable for high-efficiency power conversion and motor control applications. | ||
| STMicroelectronics | 32-bit ARM Cortex-M3 microcontroller, 128 KB flash, 16 KB RAM, 48 MHz CPU, embedded CAN FD, LIN, SPI, I2C, 12-bit ADC, operating voltage 2.7-5.5V, 48-pin LQFP package. |