The LS6506R is a pyroelectric infrared (PIR) sensor interface IC that is designed to drive a latching relay. However, the device can be used in a wall-switch configuration (no Neutral available) to enable the full AC mains cycle to be applied across any load, rendering the wall switch suitable for driving all types of resistive and inductive loads including incandescent lamps, fluorescent lamps, electronic and magnetic transformers, motors, and more. Products incorporating the LS6506R will save energy in commercial and home applications. A sister chip, the LS6507R, drives a triac in series with the load and is suitable for use in a lower-cost wall-switch configuration for driving incandescent lamp loads. In home and commercial occupancy sensor applications, the ICs can be used in wall-switch configurations to manually or automatically switch loads on and off. In commercial applications, lights can be manually switched off and will remain off as long as motion is detected. Other features include five timeout selections ranging between 30 seconds and 30 minutes; three operating modes; on-chip voltage regulation for reliable performance; PIR sensitivity adjustment; ambient-light override control; LED indication for motion detection; and 50-Hz/60-Hz operation. The LS6506R and LS6507R PIR-sensor interface ICs are available in 16-pin SOIC narrow-body and DIP packages. Pricing in lots of 1000 is $0.75 each. LSI COMPUTER SYSTEMS INC., Melville, NY. (631) 271-0400.
Company: LSI COMPUTER SYSTEMS INC.
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