Infineon BTN8962TAAUMA1: High-Current Half-Bridge Motor Driver IC for Automotive Applications

The demand for robust and efficient motor control in the automotive industry is ever-increasing, driven by the proliferation of electronic systems in vehicles. From electric power steering and throttle control to advanced comfort features like power windows and seats, precise and reliable motor driving is essential. Addressing this need, the Infineon BTN8962TAAUMA1 stands out as a premier high-current half-bridge driver IC engineered specifically for the rigorous demands of automotive environments.

This device is part of Infineon's NovalithIC™ family, which integrates a P-channel high-side MOSFET and an N-channel low-side MOSFET in a single, compact package. This innovative design is a key advantage, enabling a highly integrated and space-saving solution that simplifies board layout and reduces the overall component count in electronic control units (ECUs). The BTN8962TAAUMA1 is capable of delivering a continuous output current of up to 12 A and a peak current of up to 25 A, making it suitable for driving a wide range of DC motors with significant power requirements.

A cornerstone of its design is its robust protection and diagnostic features, which are critical for automotive functional safety and reliability. The IC includes comprehensive safeguards such as overtemperature shutdown, undervoltage lockout, and overcurrent protection. Furthermore, it provides detailed diagnostic feedback to the microcontroller, including status flags for overtemperature and short-circuit conditions. This capability for predictive maintenance and system monitoring allows for proactive management, preventing catastrophic failures and enhancing the longevity of the application.

The device operates on a supply voltage from 5.5 V to 28 V, comfortably covering the standard 12 V automotive battery system and its load-dump transients. Its efficient MOSFET technology ensures low power dissipation, which minimizes heat generation and often reduces or eliminates the need for an external heatsink, further saving space and cost. Control is achieved through a simple TTL/CMOS-compatible input interface, allowing for straightforward connection to a host microcontroller.

In application, the BTN8962TA is typically used to build an H-bridge configuration (using two ICs) for bidirectional control of DC motors. Its primary use cases include:

Electric Power Steering (EPS) systems

Throttle and valve control actuators

Thermal management fans

Power tailgates and liftgates

Automotive comfort systems (e.g., power windows, sunroofs, seats)

ICGOODFIND: The Infineon BTN8962TAAUMA1 is a highly integrated, robust, and powerful half-bridge driver that encapsulates the key requirements for modern automotive motor control. Its blend of high-current capability, comprehensive protective circuitry, and diagnostic intelligence makes it an exceptional choice for designers aiming to create reliable, efficient, and compact automotive systems.

Keywords:

Automotive Motor Driver

Half-Bridge IC

High-Current Output

Integrated Diagnostics

NovalithIC Technology