VISHAY IHLP电感在汽车电子中的应用说明.pdf

VISHAY DALE
ics Application Note
Using IHLP’s in Automotive Applications
Introduction applications: EMI filtering for the high power line and
energy storage for high frequency dc-to-dc converters.
Most innovation in automobiles is driven by electronics and
these innovations are ing a steadily growing portion To meet the requested PC board real estate, available height
of automotive production costs. There is an industry push to and power densities the designers require a low profile, high
reduce size, increase dc-to-dc converter switching current fully shielded power inductor. The IHLP series of
frequency and power density. Add to this; harsh inductors from Vishay meets these needs and has been used
environments and strict qualification procedures mean in numerous automotive applications since 2002.
designers have a difficult job ahead of them.
There are several technology drivers in the automotive IHLP Basics
industry such as fort and safety as well as The IHLP inductor is constructed using a wound copper coil
environmental considerations. All of this requires that is ultra-sonic welded to a lead frame. Iron powder
expanding electronics in decreasing available space. combined with an epoxy binder is then pressed around the
Vishay’s low-profile, surface-mounted, fully shielded IHLP inductor coil, giving the inductor its final shape or footprint.
composite in