LSI/CSI
LS7217
LSI Computer Systems, Inc.
1235 Walt Whitman Road, Melville, NY 11747 (631)271-0400 FAX (631) 271-0405
PHOTO CONTROLLED OUTDOOR LIGHTING WITH PROGRAMMABLE TIMER Sep 2014
FEATURES: • Input interface to a LDR or a photo transistor • Programmable Duration Selection • Shunt regulator • 50Hz / 60Hz time base selection • Relay Driver output • 6.
0V ± 0.
75V operating
voltage range (VDD – VSS) • LS7217 (DIP), LS7217-S (SOIC) – See Figure 1
PIN ASSIGNMENT
APPLICATIONS Lighting control for outdoor area lighting, street lighting, parking lot lighting, billboards lighting
DESCRIPTION The 7217 is a programmable Timer IC designed to turn on a relay at nig...