Infineon Technologies

BTS4140N

BTS4140N Description

The BTS4140N from Infineon Technologies is a high-side power switch designed for automotive and industrial applications, compliant with AEC-Q100 standards. It operates within a wide input voltage range of 4.9V to 60V, making it suitable for robust power management in harsh environments. With a maximum power dissipation of 1.7W and output current capability of 200mA (min), it ensures reliable performance under demanding conditions. The device features low on-resistance (max 1Ω) and integrates current limiting (700mA) and thermal shutdown for enhanced protection. Packaged in a 4-pin SOT-223 (3+Tab), it supports surface-mount assembly and is available in tape-and-reel packaging for automated production.

BTS4140N Features

• Automotive-Grade: AEC-Q100 qualified, ensuring reliability for automotive systems.
• Wide Voltage Range: Supports 4.9V to 60V, ideal for 12V/24V/48V battery systems.
• Low On-Resistance: Max 1Ω reduces power losses and improves efficiency.
• Integrated Protections: Current limiting (700mA), thermal shutdown, and short-circuit protection.
• Fast Switching: On/Off times of 100µs/175µs for responsive load control.
• High-Temperature Operation: Rated for up to 150°C, suitable for engine compartments.
• Compact SMD Package: SOT-223 (3+Tab) with a footprint of 6.5x3.5x1.6mm, saving PCB space.

BTS4140N Applications

• Automotive Systems: ECU power distribution, LED lighting, and solenoid drivers.
• Industrial Controls: Relay/actuator driving, PLCs, and power sequencing.
• Battery Management: Load switching in 12V/24V/48V battery systems.
• Harsh Environments: Applications requiring high-temperature resilience (e.g., under-hood electronics).

Conclusion of BTS4140N

The BTS4140N stands out as a high-reliability, high-side switch with robust protection features and automotive-grade durability. Its wide voltage range, low power dissipation, and compact form factor make it ideal for space-constrained, high-temperature applications. Compared to similar models, it offers superior integration of protections and AEC-Q100 compliance, ensuring longevity in automotive and industrial systems. Engineers can leverage its fast switching and current limiting for efficient power management in demanding environments.