Infineon BTS5200-1ENA High-Side Power Switch: Features, Applications, and Technical Overview
The Infineon BTS5200-1ENA is a state-of-the-art high-side power switch belonging to the company's esteemed PROFET™ (PROtected Field Effect Transistor) family of smart power devices. Engineered for robust performance in demanding automotive and industrial environments, this device integrates a vertical power MOSFET with comprehensive protection and diagnostic features into a single, compact package. It is designed to serve as a reliable and intelligent interface between low-power control units (like microcontrollers) and high-power loads.
Key Features
At the heart of the BTS5200-1ENA's appeal is its integration of advanced protective functions and diagnostic capabilities. Key features include:
High-Side Switching: Controls the positive power supply rail to the load, simplifying wiring and enhancing safety.
Low On-State Resistance (RDS(on)): Typically 20 mΩ, which minimizes conduction losses and improves energy efficiency, reducing heat generation.
High Continuous Current Capability: Rated for a maximum continuous current of 5.5 A, making it suitable for a wide range of medium-power applications.
Over-Current Shutdown (OCD): Protects the device and the load from damage caused by short circuits or excessive current draw.
Over-Temperature Shutdown (OTSD): Shuts off the power stage if the junction temperature exceeds a safe threshold, preventing thermal destruction.
Over-Voltage Protection (OVP): Includes active clamp for handling inductive load dump conditions, which are common in automotive environments.
Load Current Proportional (IS) Pin: Provides a diagnostic output signal that is proportional to the load current, enabling real-time monitoring and detection of issues like open loads or short circuits.
Green Product (RoHS compliant): Manufactured with environmentally friendly materials.
Primary Applications
The BTS5200-1ENA is predominantly designed for the harsh automotive electronics market but is equally effective in industrial control systems. Its typical applications include:
Automotive Body Control Modules (BCM): Driving various resistive, inductive, and capacitive loads such as lights, heaters, and small motors.
Power Seat Modules: Controlling seat adjustment motors and heating elements.
Steering Column Modules: Operating indicators, wiper controls, and other functions.
Industrial Solenoids and Valves: Providing reliable switching for actuator control.
General Purpose DC Load Switching: Any application requiring a protected, microcontroller-driven power switch.
Technical Overview
The device operates from a nominal supply voltage of 12 V, with a maximum operating voltage of 40 V, allowing it to withstand automotive load dump transients. Control is achieved via a 3.3 V and 5 V logic-compatible input pin, allowing for direct connection to most microcontrollers without the need for level-shifting circuitry.
The integrated diagnostic feedback through the IS pin is a critical technical advantage. By measuring the voltage on this pin, the system's microcontroller can determine if the switch is functioning normally, is in an over-current condition, has an open load, or is experiencing an overtemperature event. This facilitates predictive maintenance and enhances system reliability.
Housed in a PG-TO252-5 (DPAK) package, the BTS5200-1ENA offers an excellent power-to-size ratio and is designed for efficient heat dissipation when mounted on a PCB.
ICGOODFIND Summary
The Infineon BTS5200-1ENA stands out as a highly integrated and protected high-side switch solution. Its combination of low power dissipation, comprehensive diagnostic features, and robust protection mechanisms makes it an ideal choice for designers seeking to improve reliability, simplify circuit design, and enhance the intelligence of power distribution systems in automotive and industrial applications.
Keywords:
High-Side Switch
PROFET™
Over-Current Protection
Load Current Proportional (IS)
Automotive Electronics
