Infineon TLE8110EE: A High-Current Embedded Power Switch for Automotive Applications

The increasing electrification of modern vehicles demands robust, intelligent, and highly integrated electronic components. At the heart of many of these systems are embedded power switches, which act as the critical interface between low-power control units and high-power actuators. The Infineon TLE8110EE stands out as a premier solution in this category, engineered specifically to meet the stringent requirements of the automotive industry.

This device is a fully protected dual-channel low-side switch, capable of delivering a continuous current of up to 5.5 A per channel. Its primary function is to drive highly inductive loads, such as solenoids, valves, and motors, which are ubiquitous in applications like transmission control, exhaust gas recirculation, and engine management systems.

The TLE8110EE's architecture is a testament to intelligent integration. It incorporates a range of advanced diagnostic and protection features that are crucial for ensuring system safety and reliability. These include protection against over-load, short-circuit to battery and ground, over-temperature, and over-voltage. Crucially, it offers sophisticated diagnostic feedback to the microcontroller, including current sense with programmable threshold for detecting open-load conditions both in on and off-state, which is vital for predictive maintenance and functional safety compliance.

Designed for resilience, the IC operates within a wide supply voltage range and is qualified according to AEC-Q100, ensuring it can withstand the harsh environmental conditions of an automotive application, including extreme temperatures and voltage transients. Its SPI interface allows for flexible configuration and detailed communication of status and fault conditions back to the host processor, simplifying software design and enabling a high level of control.

ICGOOODFIND: The Infineon TLE8110EE is a highly integrated, intelligent, and robust dual-channel low-side switch designed for demanding automotive environments. It excels in driving high-current inductive loads while providing comprehensive diagnostic and protection features, making it an ideal choice for enhancing the reliability and functionality of automotive electronic systems.

Keywords:

1. Automotive

2. Low-Side Switch

3. Diagnostic Features

4. AEC-Q100

5. SPI Interface