Infineon Technologies

BTS740S2NT

BTS740S2NT Description

The BTS740S2NT is a high-side power switch from Infineon Technologies, part of the PROFET® series, designed for automotive applications. This IC offers a robust and reliable solution for power management, featuring a maximum output current of 4.9A and a load voltage range of 5V to 34V. The device is packaged in a surface-mount DSO-20 format, making it suitable for compact and efficient PCB designs. Despite being marked as obsolete, the BTS740S2NT remains a viable option for existing systems and legacy designs due to its comprehensive feature set and proven performance.

BTS740S2NT Features

• Output Configuration: High Side
• Current - Output (Max): 4.9A
• Voltage - Load: 5V ~ 34V
• Rds On (Typ): 27mOhm
• Number of Outputs: 2
• Features: Status Flag
• Fault Protection: Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Interface: On/Off
• Moisture Sensitivity Level (MSL): 3 (168 Hours)
• REACH Status: REACH Unaffected
• Grade: Automotive

The BTS740S2NT stands out with its low on-state resistance (Rds On) of 27mOhm, which minimizes power loss and enhances efficiency. Its comprehensive fault protection mechanisms, including current limiting, open load detection, over-temperature, and over-voltage protection, ensure reliable operation in demanding automotive environments. The status flag feature provides additional diagnostic capabilities, making it easier to monitor and manage the switch's performance.

BTS740S2NT Applications

The BTS740S2NT is ideally suited for automotive applications where high reliability and robustness are critical. Its high-side configuration and wide load voltage range make it suitable for controlling various loads, such as electric motors, solenoids, and lighting systems. The device's fault protection features are particularly valuable in automotive environments, where transient voltages and harsh operating conditions are common.

Specific use cases include:

• Electric Motor Control: Efficiently managing the power supply to electric motors in automotive systems.
• Solenoid Control: Reliable control of solenoids in applications like fuel injectors and valve actuators.
• Lighting Systems: Controlling automotive lighting, including headlights, taillights, and interior lights.
• General Purpose Switching: Suitable for a wide range of general-purpose switching applications within automotive electronics.

Conclusion of BTS740S2NT

The BTS740S2NT from Infineon Technologies is a high-performance, high-side power switch designed for automotive applications. Despite its obsolete status, it continues to offer a reliable and efficient solution for power management. Its low on-state resistance, comprehensive fault protection, and automotive-grade reliability make it an ideal choice for controlling various loads in demanding environments. For existing systems and legacy designs, the BTS740S2NT remains a robust and proven option, ensuring continued performance and reliability.