The Power PROFET + 24/48V switch family, developed to meet the needs of modern vehicle power systems introduced by Infineon Technologies.
Two high-side switch variants, the BTH50030-1LUA with an RDS(ON) of 3.0 m? and the BTH50015-1LUA with an RDS(ON) of 1.5 m?, are part of the Power PROFET + 24/48V switch family, which is contained in a small, TO leadless package and allows for reduced power losses in high-current applications.
The devices are perfect for commercial and hybrid vehicles, the next generation of electric cars, and the demanding needs of today’s automotive electrical systems. They also make driving safer, greener, and more comfortable.
Key Benefits of the Power PROFET + 24/48V Switch Family:
- Efficiency and space-savings capabilities.
- Highly integrated and offer resettable and diagnostic features.
- Designed for optimal performance in demanding environments.
- Offer a low on-resistance of just 1.5 m?.
- With more than 1,000,000 switching cycles, the switches far exceed the average 200,000 cycles of conventional relays and offer excellent reliability.
The device is safe because of built-in protection and diagnostic features like short-circuit, over-current, and over-temperature protection.
By averting power supply network failure types, diagnostic signals improve overall vehicle reliability and facilitate sophisticated issue identification. In comparison to, say, D2PAK packages with comparable thermal performance, the switches’ 8-pin TO leadless packaging reduces the footprint by 23%.
Reading an analog voltage at the IS pin makes it simple to establish the load current sense’s accuracy, which is ±5% after calibration.
Furthermore, the switch family has a safety application note that facilitates the assessment of hardware components in accordance with ISO 26262, and it is PRO-SILTM ISO switch 26262-ready.
Smart Power Switch for Popular 48 V Power Sources
48 V power sources are increasingly being used in place of or in addition to conventional battery systems as vehicle architectures shift to hybrid and electric vehicles.
When 12 V and 24 V power net systems reach their limits, this change is anticipated to become the new standard for electric vehicles in the future.
By lowering currents and simplifying the complexity of the wiring harness, 48 V systems increase efficiency, facilitate sophisticated features, and improve passenger comfort.
Additionally, traditional relays and fuses must be replaced in order to electrify primary and secondary power distribution systems.
Applications
Ideal for high-current applications and robust enough to withstand the conditions in hot cabin and engine compartments.
To enable seamless integration, the Power PROFET + 24/48V family is supported by the online simulation tool Infineon Automotive Power Explorer, which is available in the Infineon Developer Center.
The tool helps to calculate intrinsic fuse characteristics and visualize the sense current range for specific load currents, ensuring accurate and efficient implementation.
Availability
The Power PROFET™ + 24/48V switches BTH50030-1LUA and BTH50015-1LUA are now in production. For easy integration and evaluation, a shield for Arduino (BOARD BTH50015-1LUA) is available. The product family will soon be expanded to include the BTH50060-1LUA, a 6 m? device. Samples are available on request.
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