Infineon BTS5020-1EKA: High-Current PROFET™ Smart Switch for Automotive Applications
The increasing complexity of automotive electronic systems demands robust, intelligent, and highly reliable power management solutions. Addressing this need, the Infineon BTS5020-1EKA stands out as a high-performance PROFET™ (Protected MOSFET) smart switch designed specifically for the rigorous demands of the automotive environment. This device integrates a multitude of protection and diagnostic features into a single, compact package, making it an ideal solution for driving high-current loads such as motors, heaters, and LEDs.
Key Features and Capabilities
At its core, the BTS5020-1EKA is built around a vertical N-channel power MOSFET with an extremely low typical on-state resistance (RDS(on)) of just 2.0 mΩ. This exceptionally low resistance is a critical factor, as it minimizes power dissipation and heat generation when switching high currents up to 23 A continuously. The result is superior efficiency and reduced thermal stress, which enhances both performance and long-term reliability.
Beyond its switching prowess, the "smart" aspect of this PROFET™ device is what truly sets it apart. It offers comprehensive embedded protection features that safeguard both the switch itself and the connected load from potential damage. These include:
Overload and Short-Circuit Protection: The device automatically limits the output current in case of a fault condition.
Overtemperature Shutdown: An integrated temperature sensor shuts down the chip if the junction temperature exceeds a safe threshold, restarting automatically once it has cooled.
Overvoltage Protection: This includes load-dump protection, a common hazard in automotive electrical systems.
Ground Loss and Supply Voltage Loss Protection: Ensures predictable operation even in cases of wiring faults.
Furthermore, the BTS5020-1EKA provides sophisticated diagnostic feedback to the microcontroller via a status output pin. It can report conditions such as open-load (both in on and off-state), overtemperature pre-warning, and short-circuit to ground or battery. This capability is indispensable for advanced automotive applications, enabling predictive maintenance and enhancing overall system safety.
Designed for the Automotive Realm
The device is AEC-Q100 qualified, confirming its suitability for the harsh automotive environment. It is engineered to withstand transient electrical disturbances as outlined in the ISO 7637 standard. Housed in a TO-263-7 (D2PAK) surface-mount package, it offers an excellent power-to-volume ratio and is designed for efficient heat dissipation directly through the PCB.
Typical Applications
The BTS5020-1EKA is versatile and finds use in a wide array of automotive body and comfort control modules, including:
Heated seats and steering wheels
Power closure systems (e.g., window lifters, sunroofs, tailgates)
LED lighting modules (exterior and interior)
DC motor control for various actuators
The Infineon BTS5020-1EKA PROFET™ smart switch is a powerhouse of integration, combining a high-current switch with extensive protective and diagnostic functions. Its exceptional efficiency, proven robustness, and intelligent feedback make it a cornerstone component for developing reliable and safe next-generation automotive electronic systems.
Keywords:
1. PROFET™ Smart Switch
2. Automotive Grade
3. High-Current Switch
4. Diagnostic Feedback
5. Embedded Protection
