Infineon BTS50080-1TEA: High-Current PROFET™ Smart Switch for Automotive Applications
The increasing complexity of automotive electrical systems demands robust, intelligent, and highly efficient power management solutions. Addressing this need, Infineon Technologies introduces the BTS50080-1TEA, a standout member of its renowned PROFET™ (Protected MOSFET) family of smart high-side switches. This device is engineered specifically for demanding automotive applications, providing a reliable and protected interface between microcontrollers and high-current loads.
At its core, the BTS50080-1TEA is a single-channel switch integrating a low-ohmic N-channel power MOSFET with a typical on-state resistance (RDS(on)) of just 0.8 mΩ. This exceptionally low resistance is pivotal for achieving high efficiency and minimal power dissipation, even when handling continuous currents up to 80 A. This capability makes it an ideal solution for controlling heavy loads such as heating elements, power seats, window lifters, and advanced lighting systems.
Beyond its raw switching power, the "smart" functionality of the BTS50080-1TEA is what truly sets it apart. It incorporates a comprehensive suite of integrated protection features that safeguard both the switch itself and the connected load from potential damage in the harsh automotive environment. These include:
Overload and Short-Circuit Protection: Automatically limits output current in fault conditions.
Overtemperature Shutdown: Disables the switch if the junction temperature exceeds a safe threshold, restarting automatically upon cooling.
Overvoltage Protection (including load-dump): Shields the device from voltage transients common in automotive systems.
Ground Loss and Supply Loss Protection: Ensures correct operation even during wiring faults.
Advanced Diagnostic Feedback: Provides precise current sense (IS) and status flag signals to the microcontroller for real-time system monitoring and diagnostics, which is crucial for functional safety and predictive maintenance.
Designed for quality and reliability, the device is AEC-Q100 qualified and housed in a TO-263-7 (D2PAK) package, offering an excellent power-to-size ratio and superior thermal performance for PCB mounting. Its reverse polarity protection further enhances system robustness.
ICGOODFIND: The Infineon BTS50080-1TEA PROFET™ is a premier high-current smart switch that delivers exceptional power handling, superior energy efficiency, and a robust array of integrated protective and diagnostic features. It represents an optimal solution for designers building next-generation automotive body electronics and power distribution systems, ensuring reliability, safety, and reduced system complexity.
Keywords:
1. PROFET™ Smart Switch
2. High-Current (80A)
3. Integrated Protection
4. Automotive Grade
5. Diagnostic Feedback
