Infineon BTS50085-1TMB: High-Performance Smart High-Side Power Switch
In the realm of automotive, industrial, and consumer electronics, the demand for efficient, reliable, and intelligent power management solutions is ever-increasing. The Infineon BTS50085-1TMB stands out as a premier solution, engineered to meet these rigorous demands as a high-performance smart high-side power switch. This device integrates advanced protection features, diagnostic capabilities, and robust power handling into a single, compact package, setting a new standard for power switching components.
Unmatched Performance and Integration
The BTS50085-1TMB is designed to handle high-current loads up to 85 A with exceptional efficiency. Its low typical on-state resistance (RDS(on) of just 0.85 mΩ) is a key contributor to minimizing conduction losses and reducing heat generation. This high efficiency is critical for applications where thermal management is a concern, such as in compact electronic control units (ECUs) or battery management systems (BMS). The device operates over a wide voltage range, making it versatile for 12 V and 24 V automotive systems as well as various industrial power networks.
Intelligent Control and Diagnostic Capabilities
What truly defines the "smart" in this high-side switch is its comprehensive suite of integrated features. It offers precise proportional load current sensing, providing a feedback signal that is essential for system monitoring and control algorithms. This allows for real-time diagnostics and enables predictive maintenance. The device also includes a status flag for error reporting, alerting the microcontroller to issues such as overcurrent, overtemperature, or short circuits. Furthermore, its embedded protection mechanisms actively safeguard both the switch and the load. These include:
Overload and short-circuit protection with active current limiting.
Overtemperature shutdown with automatic restart.
Overvoltage protection (including load-dump resilience in automotive environments).
Undervoltage shutdown to prevent malfunction at low supply voltages.
Designed for Robustness and Reliability
Built on Infineon’s proven TrenchMOS technology, the BTS50085-1TMB offers superior robustness and longevity. It is housed in a TO-263-7 package, which provides excellent thermal performance for high-power dissipation. This package is designed for easy mounting onto PCB heatsinks, further enhancing its ability to operate in high-temperature environments. The device is fully AEC-Q100 qualified, ensuring it meets the strict quality and reliability standards required for automotive applications, where failure is not an option.
Application Versatility
The combination of high current handling, intelligent features, and robust construction makes the BTS50085-1TMB ideal for a wide array of applications. It is perfectly suited for driving resistive, inductive, and capacitive loads. Common uses include:
Automotive: Driving heaters, solenoids, motors, and LED lighting modules.
Industrial: Controlling actuators, valves, and small motors in factory automation.
Consumer: Managing high-power loads in advanced home appliances.
ICGOODFIND Summary
The Infineon BTS50085-1TMB is a top-tier smart high-side power switch that masterfully combines high-current capability, minimal power loss, and advanced diagnostic and protection functions. Its integration simplifies design, enhances system safety, and improves overall reliability, making it an outstanding choice for engineers developing next-generation power electronics systems.
Keywords:
1. Smart High-Side Switch
2. Overcurrent Protection
3. Load Current Sensing
4. AEC-Q100 Qualified
5. TrenchMOS Technology
