Controllers offer high efficiency, low standby

Controllers offer high efficiency, low standby

The NCP1237, NCP1238, and NCP1288 fixed-frequency, current-mode controller ICs are targeted at ac/dc adapter applications for laptop/notebook computers, LCD displays, printers, and household consumer electronics. The controllers are available in a choice of frequency options with single- or dual-level overcurrent thresholds. The standard device has a built-in 65-kHz oscillator, with 100- and 133-kHz versions supplied on request.

The current-mode controller ICs have an operational temperature range of 40 to 125C and are offered in a compact SOIC-7 package. Combining this with a frequency foldback function, the controllers deliver high efficiency levels in light-load conditions, while minimizing input power during no load conditions. (Contact company for price and availability.)

ON Semiconductor , Phoenix , AZ
Sales 602-244-6600
http://www.onsemi.com