BTS500551TMCATMA1

Power Distribution Switches, Load Drivers Overview

The BTS500551TMCATMA1 is a high-side smart power switch from Infineon's PROFET series, designed for automotive power distribution. It features a single N-channel output capable of handling up to 70 A continuous current with a peak limit of 130 A. The device operates within a supply voltage range of 5 V to 34 V and includes integrated protection against over-current, over-temperature, and over-voltage conditions. Key electrical parameters include a maximum on-resistance of 6 mΩ and a typical value of 4.4 mΩ. It supports auto-restart functionality and provides diagnostic feedback via an enable pin. The component is housed in a PG-TO220-7-4 package and is qualified to AEC-Q100 standards.

Power Distribution Switches, Load Drivers Feature Summary

• Integrated high-side switching with automatic restart capability following fault conditions
• Comprehensive protection mechanisms including fixed current limiting, over-temperature shutdown, and open-load detection
• Diagnostic interface providing fault signaling to microcontrollers for system monitoring

Power Distribution Switches, Load Drivers Applications

• Automotive power distribution modules
• High-current load control in engine compartments
• Replacement for electromechanical relays and fuses in 12V/24V systems

Power Distribution Switches, Load Drivers Procurement Notes

Verify the exact suffix (TMCATMA1) against the manufacturer's official datasheet to confirm package type and qualification status. Confirm availability as this specific variant may be discontinued or subject to long lead times. Ensure compatibility with existing PCB footprints for the PG-TO220-7-4 package. Check for updated replacement recommendations from Infineon if the part is no longer in active production.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for applications requiring robust high-side switching with integrated diagnostics. The 70 A rating suits heavy loads such as heaters, pumps, and fans. Consider the TO-220-7 package for thermal management needs. Verify that the 34 V maximum voltage aligns with the system's transient voltage requirements. Ensure the microcontroller interface supports the required diagnostic signal levels.

Power Distribution Switches, Load Drivers Part Context

This device belongs to Infineon's PROFET family of smart power switches, which integrate power MOSFETs with control and protection circuitry. The PROFET series is widely used in automotive electronics to replace traditional discrete solutions, offering higher reliability and reduced board space. The BTS50055 variant specifically targets high-current applications requiring durable performance in harsh environments.

Power Distribution Switches, Load Drivers Replacement Considerations

Check Infineon's official documentation for direct replacements or updated variants within the BTS50055 series. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.