PIR INFRARED REMOTE CONTROL CIRCUIT - Unisonic Technologies
Description
UNISONIC TECHNOLOGIES CO.
, LTD UT8803
PIR INFRARED REMOTE CONTROL CIRCUIT
CMOS IC
DESCRIPTION
The UTC UT8803 is an integrated circuit that design for infrared PIR controlling.
It needs only few external components in application circuit.
It can be applied as controller of light, electric switching and burglar alarm, and so on.
FEATURES
* High Noise Immunity.
* Output drivable RELAY or TRIAC.
* Contain two OP amps, gain adjustable.
* Control time adjustable.
* Steady voltage inside output 3.
1 V to drive the PIR directly.
* Integrate zero cross detect, the AC power supply triggers
synchronously, lowering the power supply pollution.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UT8803L-D16-T
UT8803G-D16-T
Package DIP-16
Packing Tube
www.
unisonic.
com.
tw Copyright © 2009 Unisonic Technologies Co.
, Ltd
1 of 6
QW-R502-094,B
UT8803
PIN CONFIGURATION
UOU1 NII 1 II 1
VREF GND
TB QTEST
TC1
1 2 3 4 5 6 7 8
16 UOU2 15 NII 2 14 II 2 13 VDD 12 ZCD 11 RELAY 10 TRIAC 9 CDS
PIN DESCRIPTION
PIN NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME UOU1 NⅡ1 Ⅱ1
VREF GND TB QTEST TCI CDS TRIAC RELAY ZCD VDD Ⅱ2 NⅡ2 UOU2
First stage OP amp output
FUNCTION
First stage OP amp positive input
First stage OP amp negative input
Reference voltage
Ground
Time base for System Clock.
The periods TTb =(1±20%)RC/1.
1 Test
Timer clock generator.
The periods TTci =(1±20%)RC/1.
1 CDS detect, inhibitory output in the daytime.
TRIAC output, active low
RELAY output, active high
Detect zero cross of AC line, synchronously pin TRIAC
Power supply Second stage OP amp negative input
Second stage OP amp positive input
Second stage OP amp output
CMOS IC
UNISONIC TECHNOLOGIES CO.
, LTD
www.
unisonic.
com.
tw
2 of 6
QW-R502-094,B
UT8803
BLOCK DIAGRAM
CMOS IC
UNISONIC TECHNOLOGIES CO.
, LTD
www.
unisonic.
com.
tw
3 of 6
QW-R502-094,B
UT8803
CMOS IC
FUNCTIONAL DESCRIPTION
1.
The PIR amplifier (the first and second stage Op Amp) amplifies PIR signal.
Its mul...
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