Infineon Technologies AG announced a new product family of solid-state isolators (iSSI) that use the company’s coreless transformer technology, delivering faster switching with 70% lower power dissipation. The iSSI family also provides more reliable circuit switching with protection features not available in optical-based solid-state relays (SSRs).
(Source: Infineon Technologies AG)
These coreless transformer isolators enable designers to develop custom SSRs, capable of controlling loads in excess of 1,000 V and 100 A. They deliver 20 times greater energy transfer with both current and temperature protection, contributing to its higher reliability, the company said. The devices provide galvanic Isolation up to 5.7 kV rms and isolation voltage of 1,200 Vrms.
The new solid-state isolators allow driving the gates of Infineon’s MOS-controlled power transistors, including OptiMOS, CoolMOS, TRENCHSTOP IGBT and CoolSiC, to reduce power dissipation by up to 70% of SSRs using silicon-controlled rectifier (SCR) and Triac switches, the company said.
When matched with the CoolMOS S7 switch, for example, the iSSI drivers enable switching designs with a much lower resistance compared to optically-driven solid-state solutions, translating into longer lifespans and lower cost of ownership in system designs, Infineon said.
Like all solid-state isolators, the devices also offer higher performance compared to electromagnetic relays, including 40% lower turn-on power and increased reliability due to elimination of moving parts.
“Implementing coreless transformers in solid-state isolators and relays is truly a game-changer for power engineers; it provides 50 times lower RDS (on) than existing optically-controlled solutions,” said Davide Giacomini, Infineon’s marketing director for the Green Industrial Power Division, in a statement. “This enables their use in higher-voltage and higher power applications.”
With the coreless transformer technology, these devices are suited for applications in advanced battery management, energy storage, renewable energy systems, as well as industrial and building automation systems. They meet the UL 1577 and IEC 60747-17 standards.
The iSSI family is housed in the wide-body PG-DSO-8 or DSO-16-33 package, depending on the part. The company is holding a virtual briefing about the new iSSI technology on February 29, 4 p.m. CET/7 a.m. PT. You can join live here. Infineon is showcasing its new products and technologies at APEC 2024, booth #1013 and #1319.
Advertisement
Learn more about Infineon Technologies
