Infineon BTS141TCBUMA1 Smart High-Side Power Switch: Features and Applications
The Infineon BTS141TCBUMA1 is a state-of-the-art smart high-side power switch designed to deliver robust performance and integrated protection for a wide range of automotive and industrial applications. As part of Infineon's PROFET™ (Protected MOSFET) family of products, this device combines a vertical power MOSFET with sophisticated smart control and monitoring circuitry in a single package. Its primary function is to act as an electronic switch that efficiently controls power to various loads, such as motors, lamps, and heaters, while providing critical diagnostic feedback to a microcontroller.
Key Features
The BTS141TCBUMA1 is engineered with a suite of advanced features that make it a reliable and intelligent solution for power management.
High-Side Switch Configuration: The device is connected between the power supply and the load. This configuration simplifies wiring and enhances safety by grounding the load when the switch is off.
Low On-State Resistance (RDS(on)): With a very low typical RDS(on) of just 7 mΩ, the switch minimizes conduction losses, leading to higher efficiency and reduced heat generation. This is crucial for improving the overall energy efficiency of the system.
Comprehensive Protection Functions: A standout feature is its integrated suite of protection mechanisms. These include overload protection, short-circuit protection, over-temperature shutdown, and over-voltage protection (including load-dump resilience). These features safeguard both the switch itself and the connected load from potential damage.
Advanced Diagnostic Capabilities: The device provides precise diagnostic feedback to the system's microcontroller. It can detect open-load conditions (both in on and off-state), short-circuit to ground or battery, and over-temperature warnings. This allows for predictive maintenance and swift system response to faults.
Optimized Electromagnetic Compatibility (EMC): The switch is designed for excellent EMC performance, minimizing electromagnetic interference, which is a critical requirement in automotive electronics.
Green Product (RoHS compliant): It is manufactured with environmentally friendly materials, adhering to the Restriction of Hazardous Substances (RoHS) directive.
Primary Applications
The robust and intelligent design of the BTS141TCBUMA1 makes it an ideal choice for demanding environments.
Automotive Body Electronics: It is extensively used to drive various resistive and inductive loads in vehicles. Common applications include controlling power windows, sunroofs, seat heaters, interior lighting, and windshield washer pumps.
Industrial Automation: In industrial settings, the switch can reliably control solenoids, small DC motors, and actuators, benefiting from its diagnostic and protection features to ensure system uptime.
Heavy-Truck and Construction Equipment: Its ability to withstand harsh electrical environments and high inrush currents makes it suitable for commercial vehicle applications.
The Infineon BTS141TCBUMA1 stands out as a highly integrated and protected power switch solution. Its combination of extremely low power loss, robust built-in protection, and detailed diagnostic reporting makes it an exceptional component for designers seeking to enhance the reliability, efficiency, and intelligence of their 12V or 24V DC power systems.
Keywords:
1. Smart High-Side Switch
2. Overload Protection
3. Diagnostic Feedback
4. Low RDS(on)
5. Automotive Applications
