Infineon Technologies

BTS443P

BTS443P Description

The BTS443P from Infineon Technologies is a high-performance PROFET™ (Protected FET) power switch designed for high-side load switching applications. This single-channel device operates within a 5V to 36V supply range, delivering a robust 25A output current with a low on-resistance (max 16mΩ) for minimal power dissipation. Its 42W power dissipation capability and 65A current limit ensure reliable operation under demanding conditions. The BTS443P is RoHS compliant by exemption and packaged in a reel-mounted SMD/SMT format, making it suitable for automated assembly.

BTS443P Features

• High-Side Switch: Single-channel design with integrated protection for safe load control.
• Low On-Resistance: 16mΩ max reduces conduction losses, improving efficiency.
• Wide Voltage Range: 5V to 36V operating range for versatile applications.
• Fast Switching: 410µs max turn-on/off time for responsive load management.
• Robust Protection: Current limiting (65A), thermal shutdown, and ESD protection enhance reliability.
• High Power Handling: 42W power dissipation ensures durability in high-current scenarios.
• Moisture-Sensitive (MSL): Requires careful handling per IPC/JEDEC standards.

BTS443P Applications

The BTS443P excels in automotive, industrial, and power distribution systems, including:

• Automotive Load Control: Driving relays, motors, and LEDs in 12V/24V systems.
• Industrial Automation: Solenoid/valve control in PLCs and actuators.
• Power Distribution: Hot-swap circuits, battery management, and DC load switching.
• Consumer Electronics: High-current power switches in appliances and smart devices.

Conclusion of BTS443P

The BTS443P stands out as a high-efficiency, protected high-side switch with low losses, fast response, and robust fault handling. Its wide voltage range, high current capability, and compact SMD package make it ideal for automotive and industrial applications requiring reliable power distribution. With Infineon’s PROFET™ technology, it offers superior protection and performance compared to discrete MOSFET solutions, reducing system complexity and cost.