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BTS436L2

BTS436L2 Description

The BTS436L2 from Infineon Technologies is a high-side power switch designed for robust general-purpose load driving applications. Part of the PROFET® series, this N-channel MOSFET-based switch integrates advanced protection features while delivering 8.8A maximum output current with a low 35mOhm typical Rds(on). It operates over a wide load voltage range (4.75V to 41V), making it suitable for automotive, industrial, and consumer electronics. The device requires no external supply voltage (Vcc/Vdd), simplifying system design. Packaged in a TO-220-5 through-hole format, it is ideal for high-power applications demanding reliability and thermal efficiency.

BTS436L2 Features

• High-Side Configuration: Eliminates the need for external charge pumps or level shifters.
• Integrated Protections: Includes fixed current limiting, open-load detection, overtemperature shutdown, and overvoltage clamping for fault resilience.
• Status Flag: Provides diagnostic feedback for fault conditions, enhancing system monitoring.
• Low On-Resistance: 35mOhm Rds(on) minimizes power dissipation, improving efficiency.
• Wide Operating Range: Supports 4.75V–41V load voltages, accommodating diverse applications.
• 1:1 Input-to-Output Ratio: Simplifies control logic with direct on/off interface.

BTS436L2 Applications

• Automotive Systems: ECU loads, lighting, and motor control due to its rugged design and fault tolerance.
• Industrial Automation: Solenoid/relay driving, where high current and protection features are critical.
• Power Distribution: Hot-swap circuits and load switches in telecom/server PSUs.
• Consumer Electronics: High-current switches for appliances or LED drivers.

Conclusion of BTS436L2

The BTS436L2 excels in high-current switching with its low Rds(on), integrated protections, and diagnostic capabilities. While now obsolete, its legacy as a reliable PROFET® switch makes it a benchmark for rugged, high-side drivers. Ideal for demanding environments requiring minimal external components and robust fault handling, it remains a reference for designers prioritizing efficiency and system safety.