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PT8A2647

Pericom Technology
Part Number PT8A2647
Manufacturer Pericom Technology
Description PIR Sensor Light Switch
Published May 25, 2016
Detailed Description ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||...
Datasheet PDF File PT8A2647 PDF File

PT8A2647
PT8A2647

Overview
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Product Features  Operating voltage: 5V (Typ.
)  Average supply current: 120µA (Typ.
)  2 stage op-amp for filter.
 Build-in noise rejection circuit.
 On-chip regulator.
 Adjustable output duration  Override function.
 ON/AUTO/OFF selectable by MODE pin  Apply to AC 220V/50Hz and 110V/60Hz.
 Auto-reset if the ZC signal disappears over 3 seconds  Output pulse (PT8A2641/5/7) to drive triac or output level (PT8A2642/6/8) to drive relay.
 CDS to enable/disable output.
 40 second warm-up.
 Quick check mode for installation.
PT8A2641-2642/2645-2648 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| PIR Sensor Light Switch Product Description The PT8A264X is a CMOS LSI chip designed for use in automatic PIR lamp control.
It can operate with a 2-wire configuration for triac applications or with a 3-wire configuration for relay applications.
The chip is equipped with operational amplifiers, a comparator, timer, a zero crossing detector, control circuit, a voltage regulator, a system oscillator, and an output timing oscillator.
Its PIR sensor detects infrared power variations induced by the motion of a human body and transforms it to a voltage variation.
If the PIR output voltage variation conforms to the criteria (refer to the functional description), the lamp is turned on with an adjustable duration.
The PT8A264X offers three operating modes (ON, AUTO, OFF) which can be set through the MODE pin.
While the chip is working in the AUTO mode the user can override it and switch to the quickly install mode, or manual ON mode, or return to the AUTO mode by switching the power switch.
Block Diagram Figure 1 Block Diagram OP2O OP2N OP2P _ + OP1O OP1P OP1N VEE + _ OSCD OSCS Comparator Volt...


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