Trendy, decentralized, and zonal energy distribution architectures require reliable options. With PROFET Wire Guard, Infineon Applied sciences AG offers builders with superior wire safety for contemporary energy distribution. In comparison with standard fuses, the product household can emulate the stress traits of the wires way more precisely with an built-in and exact I²t wire safety curve, which may be chosen from six carried out curves relying on the appliance necessities. Mixed with different options, the built-in I²t wire safety accuracy permits wire harness optimization when changing mechanical relays and fuses.
The 5 PROFET Wire Guard units come within the confirmed TSDSO-14 and TSDSO-24 packages. They provide full pin-to-pin compatibility inside the household and excessive compatibility with PROFET +2 12V units and are concentrating on currents of as much as 27 A. To develop the present capabilities as much as 36A, the product line-up will probably be additional prolonged with an extra system coming in This fall 2025. The units have a capacitive load switching (CLS) mode carried out to cost capacitive hundreds. An adjustable overcurrent detection threshold helps quick fault isolation from the ability provide. The built-in computerized idle mode reduces present consumption throughout parking to usually 50 µA, whereas the output stage stays totally switched on. Constructed-in sequential prognosis offers correct software knowledge throughout 5 addresses on a single pin, enabling software integrity testing for purposeful security necessities and additional wire harness optimization throughout facelifts primarily based on the evaluation of the wire safety standing throughout car operation. The units have been developed and are launched as ISO 26262:2018 Security Ingredient out of context for security necessities as much as ASIL D.
To assist the design-in course of, the product household is built-in into the Infineon Automotive Energy Explorer, which is on the market within the Infineon Developer Middle. This simulation software helps, for instance, the analysis of the system safety functionality of PROFET Wire Guard units with a given wire and cargo profile. It additionally calculates the proper resistance values for the adjustable overcurrent detection threshold in addition to the collection of the built-in I²t wire safety curves. The software can be succesful to calculate parameters like kILIS accuracy or energy dissipation for the entire product household.
