LS7217 Datasheet (LSI) - PHOTO CONTROLLED OUTDOOR LIGHTING

LS7217, PHOTO CONTROLLED OUTDOOR LIGHTING

The 7217 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.

PIN DESCRIPTION: The following describes the operation of the inputs and outputs of the IC.

FIGURE 1 The Ti

LS7217 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 (S