LS7218 Search Results

LS7218

Contextual Info: LSI/CSI UL A3800 LS7218 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 631 271-0400 FAX (631) 271-0405 PROGRAMMABLE LIGHT-ACTIVATED TIMER DESCRIPTION The LS7218 is a Programmable Timer IC designed to turn on a relay at night and turn off the relay at dawn or after a selectable number of hours. Figure 2 shows a typical application schematic. The circuit is powered from a step-down