General Description

The PT8A2611 and PT8A2621 are low power mixed signal CMOS LSI designed for the automatic lamp control using PIR sensor as motion detector.

Features

• 2-stage operational amplifier as filter

• Built-in noise rejection circuit

• On-chip regulator

• Override function

• Synchronous with AC 220V/50Hz and 110V/60Hz

• Pulse output (PT8A2611) for TRIAC drive or level output (PT8A2621) for relay drive

• CDS to enable/disable output

• Adjustable output on time duration

• ON/AUTO/OFF selectable by MODE pin

• Auto-reset if the ZC signal disappears over 3 seconds

• 40 seconds warm-up

• Quick check mode for initial installation

• Operating voltage: 5V

• Stand-by current: 80µA

• Package: 16-pin DIP and 16-pin SOP

Applications

• Energy saving auto-switch in Garden, kitchen, bathroom, corridor, storage or yard

• Auto light in meeting room