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PT8A2621

Pericom Technology
Part Number PT8A2621
Manufacturer Pericom Technology
Description PIR Sensor Light Switch Controller
Published Sep 30, 2005
Detailed Description Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||...
Datasheet PDF File PT8A2621 PDF File

PT8A2621
PT8A2621

Overview
Data Sheet PT8A2611/2621 PIR Sensor Light Switch Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features • 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.
With on chip noise filter and voltage regulator, the IC provides stable operations throughout temperature range.
CDS input to disable day time operation is desired.
• • • • • • • • • • • • • • 2-stage operational amplifier as filter Built-in noise rejection circuit On-chip regulator Override function (PT8A2621 only) 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 Function Comparison Override PT8A2611 PT8A2621 No function Twice CDS feedback Output Internal With external components (see Fig.
10, D9 and R15) TRIAC RELAY Applications • Energy saving auto-switch in Garden, kitchen, bathroom, corridor, storage or yard • Auto light in meeting room Ordering Information Part Number PT8A2611P / PT8A2621P PT8A2611W / PT8A2621W PT8A2611DE / PT8A2621DE Package 16 - Pin PDIP 16 - Pin SOP Die Form Block Diagram OP2O OP2N OP2P _ + Comparator latch circuit Mode and CDS control circuit MODE CDS OP1O OP1P OP1N V EE OSCD + _ Voltage divider (Internal CDS feedback, for 2611 only) Regulator Control circuit RELAY (for 2621 only) Output circuit TRIAC (for 2611 only) delay oscillator System oscillator Delay circuit Counter circui...


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