The BTS50080B is a smart high-side power switch from Infineon Technologies' PROFET™ family. It is designed for a wide range of automotive and industrial applications requiring robust protection and diagnostic features.

Applications

• Automotive body control (e.g., lighting, wipers, door locks)
• Power distribution systems in vehicles
• Industrial automation (e.g., PLC outputs, motor control)
• Actuator control (e.g., valves, relays)
• Heating applications (e.g., seat heaters)

Features

• Overload protection: Protects the switch and load from damage due to excessive current.
• Short-circuit protection: Rapidly shuts down the switch in the event of a short circuit.
• Overtemperature protection: Disables the switch to prevent thermal damage if a critical temperature is reached.
• Current limitation: Limits current during overload to prevent damage to the load and switch.
• Diagnostic feedback: Provides comprehensive status information for system monitoring and fault detection.
• Load dump protection: Protects against voltage spikes during load dump events.
• Logic Level Input: Compatible with various logic levels for microcontroller integration.
• PWM capability: Suitable for pulse-width modulation applications.

Benefits

• Increased system reliability: Integrated protection features prevent damage and ensure robust operation.
• Simplified design: Reduces external components and simplifies circuit design.
• Enhanced safety: Protects against short circuits and overtemperature conditions.
• Reduced power consumption: Low on-state resistance minimizes power losses and improves efficiency.
• Improved diagnostics: Provides detailed status information for efficient troubleshooting.

Additional Details

The BTS50080B features a very low on-state resistance (RDS(on)), which reduces power dissipation and improves thermal performance. It's typically available in a PG-DSO-12 package suitable for surface mount assembly. It operates across a wide voltage range (e.g., 5V to 34V), making it suitable for various automotive and industrial power systems. Diagnostic information includes status bits for overload, short circuit, overtemperature, and open load detection. These features can be used to build self-diagnosing and fault-tolerant systems. The device is also compliant with automotive standards, such as AEC-Q100. The integrated clamp protects the device against overvoltage. The combination of protection, diagnostics, and low power consumption makes the BTS50080B a versatile solution for high-side switching applications.