Infineon BTS740S2: High-Current PROFET™ Smart Switch for Automotive and Industrial Applications

The Infineon BTS740S2 is a state-of-the-art four-channel smart High-Side switch based on Infineon’s advanced PROFET™ (PROtected FET) technology. Designed to meet the rigorous demands of automotive and industrial systems, it integrates four independent channels capable of driving various resistive, inductive, and capacitive loads with a continuous current of up to 7 A per channel. Its robust design and diagnostic capabilities make it an ideal solution for applications requiring high reliability, precision control, and comprehensive system feedback.

A key strength of the BTS740S2 lies in its integrated protection features, which safeguard both the device and the connected load under abnormal operating conditions. These include overload protection, short-circuit protection, and over-temperature protection, along with built-in clamping for inductive load switching. Each channel is equipped with individual status feedback, enabling real-time diagnosis of faults such as open-load, overtemperature, or short-circuit events. This diagnostic capability is communicated via a dedicated sense pin, allowing for efficient system monitoring and rapid response to failures.

The device operates with a wide supply voltage range from 5.5 V to 40 V, supporting compatibility with 12 V and 24 V battery systems commonly used in automotive and industrial environments. Its very low standby current and efficient switching performance help minimize power dissipation, contributing to improved energy efficiency in the overall system.

Typical applications include driving high-current loads such as lamps, motors, heaters, and solenoids in automotive body control modules, industrial automation systems, power distribution units, and relay replacement circuits. The BTS740S2 is housed in a compact and thermally efficient PG-DSO-36 package, enabling high power density and reliability in space-constrained designs.

ICGOOODFIND

The Infineon BTS740S2 PROFET™ smart switch stands out as a highly integrated, robust, and diagnostic-rich solution for high-current switching in demanding automotive and industrial environments, offering superior reliability and system insight.

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Keywords:

PROFET™ Smart Switch

High-Current Switching

Automotive Applications

Integrated Protection

Diagnostic Feedback