General Description The PT8A261 and PT8A262 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 (PT8A261) for TRIAC drive or level output (PT8A262) 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 (261P/262P) and 16-pin SOP (261W/262W) Applications • Energy saving auto-switch in Garden, kitchen, bathroom, corridor, storage or yard • Auto light in meeting room
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