Infineon BTS711L1XUMA1: A High-Current PROFET™ Smart High-Side Switch for Automotive and Industrial Applications

The demand for robust, intelligent power management solutions continues to grow across the automotive and industrial sectors. Addressing this need, Infineon Technologies introduces the BTS711L1XUMA1, a standout member of its PROFET™ (PROtected FET) family of smart high-side switches. This device is engineered to deliver exceptional performance and reliability in controlling high-current loads, making it an ideal solution for a wide array of demanding applications.

Designed for Demanding Environments

A key strength of the BTS711L1XUMA1 is its robust integration. It combines a vertical N-channel power MOSFET with advanced CMOS control circuitry on a single chip. This high level of integration simplifies board design, reduces component count, and enhances overall system reliability. The device is AEC-Q100 qualified, ensuring it meets the stringent quality and durability requirements for automotive electronics. It is capable of driving resistive, capacitive, and inductive loads, such as motors, valves, and lamps, with a continuous current rating of up to 7.5 A per channel (four channels total).

Comprehensive Protection and Diagnostic Features

The "smart" in this high-side switch refers to its extensive suite of integrated protection and diagnostic functions. These features safeguard both the switch and the connected load from potential damage caused by fault conditions. Key protections include:

Overload and Short-Circuit Protection: The device automatically limits the output current in case of an overload or short circuit to the battery.

Overtemperature Protection: An internal temperature sensor shuts down the chip if the junction temperature exceeds a critical threshold, reactivating once it has cooled.

Overvoltage Protection (including load dump): It can withstand voltage transients common in automotive environments.

Reverse Battery Protection: The device is protected against a reversed supply voltage, typically up to -18V.

Furthermore, it provides precise diagnostic feedback via a dedicated status output pin. This allows the microcontroller to monitor the switch's operation, detecting conditions like open-load (both ON and OFF-state), overtemperature pre-warning, and short-circuit to ground, enabling predictive maintenance and enhanced system safety.

Versatile Application Scope

The BTS711L1XUMA1 is exceptionally versatile. In the automotive domain, it is perfect for body control modules (BCMs), controlling interior and exterior lighting, seat heaters, window lifters, and other actuators. Its robustness also makes it suitable for industrial applications, such as programmable logic controllers (PLCs), factory automation systems, and solenoid control, where high-current switching in harsh environments is required.

ICGOOODFIND

The Infineon BTS711L1XUMA1 PROFET™ smart high-side switch stands out as a highly integrated and protected solution for managing high-current loads. Its blend of power handling, comprehensive diagnostic capabilities, and automotive-grade ruggedness makes it a superior choice for designers aiming to improve system reliability, safety, and efficiency in both automotive and industrial markets.

Keywords:

1. PROFET™ Smart High-Side Switch

2. Automotive Grade (AEC-Q100)

3. High-Current Switching

4. Integrated Diagnostics

5. Overload Protection