Integrating all functions into a single 8-pin package, the IR2161 can adapt to changing supply voltage, frequency and lamp conditions, enabling the introduction of highly reliable halogen transformers while streamlining their design and manufacture. Adaptive deadtime control is a key feature of the IR2161, increasing transformer reliability by continually maintaining soft switching, regardless of external conditions.
Another core feature is International Rectifier's high-voltage junction isolation technology on which the IC is based. This proprietary technology allows high-voltage circuits to be isolated from low-voltage circuitry, so that both high- and low-side drive functions can be housed on a single, compact chip for controlling various switching converter topologies. Since halogen lighting requires both high- and low-voltage circuits to function, components made with IR's HVJI technology are particularly well-suited to the application.
The IR2161 joins the previous International Rectifier Product of the Year winners from Electronic Products magazine: The XPhaseTM chip set for multiphase, interleaved DC-DC buck converters (2003), and the DirectFETTM power MOSFET (2002).
The editors at Electronic Products chose this year's winners based on significant advances in technology or its application, innovation in design, or a substantial gain in price and performance. The winners will be printed in the January 2005 issue of Electronic Products magazine. Hearst Business Communications, Inc., Garden City, New York, publishes Electronic Products, The Engineer's Magazine of Product Technology.
Quick Links
- Application Note 1069: Electronic Transformer Applications using the IR2161
- IR2161 Datasheet
- Reference Design: 100VA dimmable electronic convertor for low voltage lighting using the IR2161
