40V automotive-qualified FETs lower on-state resistance

May 14, 2013 // By Graham Prophet
International Rectifier has introduced a family of automotive-qualified COOLiRFET MOSFETs distinguished by on-state resistance (Rds(on)) for heavy load applications including electric power steering (EPS), braking systems and other heavy loads on internal combustion engine (ICE) and micro hybrid vehicle platforms.

The family of 22 AEC-Q101 qualified 40V N-channel MOSFETs feature IR’s Gen12.7 trench technology that delivers ultra-low Rds(on) in D2Pak-7P, D2Pak, DPak, TO-262, IPAK and TO-220 packages. The D2Pak-7P AUIRFS8409-7P delivers Rds(on) max as low as 0.75mOhm at 10Vgs with a current rating up to 240A. The new devices offer low conduction losses and robust avalanche performance to deliver higher efficiency, power density and reliability. With this performance, many applications using these new COOLiRFET devices run significantly cooler than with state-of-the-art MOSFETs.

“IR's COOLiRFET 40V automotive-qualified MOSFETs achieve benchmark Rds(on) in all package variations to deliver an efficient solution for high current automotive applications requiring high performance while reducing overall system cost,” said Jifeng Qin, Product Manager, Automotive MOSFETs, IR’s Automotive Products Business Unit. The new devices are AEC-Q101 qualified, which requires that there is no more than a 20% change in Rds(on) after 1,000 temperature cycles of testing.

International Rectifier, www.irf.com