Infineon TLE7182EMXUMA1: High-Current Half-Bridge Driver IC for Automotive Motor Control Applications

The evolution of automotive systems, particularly with the rise of electrification and advanced driver-assistance systems (ADAS), demands robust and reliable electronic components. At the heart of many of these applications—from electric power steering (EPS) and electric pumps to engine cooling fans and transmission actuators—lies the critical need for precise motor control. The Infineon TLE7182EMXUMA1 stands out as a premier solution, a high-current half-bridge driver IC engineered specifically to meet the stringent requirements of the modern automobile.

This driver IC is designed to control the power stages that drive brushed DC and stepper motors, which are ubiquitous in vehicle subsystems. Its core function is to efficiently translate low-power control signals from a microcontroller (MCU) into the high-current, high-voltage signals required to swiftly switch large external N-channel power MOSFETs on and off. The TLE7182EM excels in this role, capable of delivering peak output currents of up to ±2.5 A, ensuring fast switching transitions that minimize power losses and improve overall system efficiency.

A key differentiator for any automotive-grade component is its resilience and built-in protection features. The TLE7182EMXUMA1 is architected with a comprehensive suite of safeguards to ensure operational integrity in the harsh electrical and environmental conditions of an automotive environment. It incorporates advanced protection mechanisms including under-voltage lockout (UVLO) for both the logic and driver sections, over-temperature shutdown, and a cross-current prevention feature that eliminates the risk of shoot-through currents in the half-bridge. Furthermore, its SPI interface (Serial Peripheral Interface) provides extensive diagnostic capabilities, allowing the host microcontroller to monitor status flags for errors such as overtemperature, undervoltage, and open-load conditions, enabling predictive maintenance and enhanced system safety.

The device’s AEC-Q100 qualification confirms its compliance with the rigorous quality and reliability standards mandated for automotive integrated circuits. Housed in a space-saving, thermally enhanced PG-DSO-36 package, it is optimized for compact electronic control unit (ECU) designs. Its ability to operate over a wide supply voltage range and its high noise immunity make it an exceptionally robust choice for automotive designers tackling challenges from 12V to 48V boardnet systems.

ICGOOODFIND: The Infineon TLE7182EMXUMA1 is a robust, feature-rich half-bridge driver IC that provides the muscle and intelligence for advanced automotive motor control. Its high-current drive capability, extensive diagnostic suite via SPI, and robust built-in protections make it an ideal and reliable choice for safety-critical and high-performance automotive applications, ensuring both longevity and efficiency.

Keywords: Automotive Motor Control, Half-Bridge Driver, High-Current Output, SPI Interface, AEC-Q100 Qualified.