UNISONIC TECHNOLOGIES CO., LTD
UT8803
CMOS IC
PIR INFRARED REMOTE
CONTROL CIRCUIT
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
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
Package
Packing
DIP-16
Tube
1 of 6
QW-R502-094,B
UT8803
CMOS IC
PIN CONFIGURATION
UOU1
1
16
UOU2
NII 1
2
15
NII 2
II 1
3
14
II 2
VREF
4
13
VDD
GND
5
12
ZCD
TB
6
11
RELAY
QTEST
7
10
TRIAC
TC1
8
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
FUNCTION
First stage OP amp output
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
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-094,B
UT8803
CMOS IC
BLOCK DIAGRAM
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 multiple can be adjust through
resistance and capacitance outside.
2. If the amplificatory PIR signal voltage is higher than VH (Typ 1.8V) or lower than VL (Typ 1.15V), the Window
Comparer outputs high level.
3. The Pulse Width Detector detects the Window Comparer’s pulse width, if the high pulse width is more than
768*TTb, this pulse is in effect, and the RELAY or the traic is triggered. Otherwise, it is ignored.
4. When an availability PIR signal is detected, the RELAY outputs high level, and the TRAIC outputs pulse, and the
Counter starts to count, but if a new availability PIR signal appears, the Counter restarts to count. After
245760*TTci, the RELAY and TRIAC stop output.
5. Pin CDS connect a CDS, it can control pin RELAY to keep low level in the daytime.
6. When the AC power crosses zero line, the Zero Cross Detector generates a pulse, and permits the TRIAC to be
triggered, after 32*TTb.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-094,B
UT8803
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Supply VDD with Repect to VSS
Voltage on any Pin
RATINGS
UNIT
5.6
V
V
-0.3 ~ 5.6
Operating Temperature
TOPR
-20 ~ +85
°C
Storage Temperature
TSTG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
SYMBOL
VDD - VSS
ELECTRICAL CHARACTERISTICS
PARAMETER
Power Supply Voltage
Keep Current
Reference Voltage
Reference Voltage Output Current
Gain of OP Amp
TRIAC Sink Current
TRIAC Source Current
RELAY Source Current
RELAY Sink Current
SYMBOL
TEST CONDITONS
VDD
IDD
TYP
5.0±
10%
VDD＝5V
IREF
ISINK(TRIAC)
ITSOURCE(TRIAC)
ISOURCE(RELAY)
ISINK(RELAY)
MAX
UNIT
V
1
3.1±
0.3V
VREF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
mA
V
200
60
15
50
5
5
μA
dB
mA
μA
mA
mA
5 of 6
QW-R502-094,B
UT8803
1.
CMOS IC
TYPICAL APPLICATION CIRCUIT
TRIAC CONTROL
15k
47u
1 UOU1
820k
2 NII1
15k
PIR
47k
0.01u
1
6
NII2
1
5
33u
{RES2}
1
3
4 VREF
VDD
5 GND
1
ZCD 2
1
RELAY
1
6 TB
100p
1
TRIAC 0
7 QTEST
4.7K
22u
560k
0.047u
1
II2 4
3 II1
100u
1M
UOU2
33n
8 TCI
0.01u
FUSE
1M
470u
5.1V
470K
330
47
CDS 9
UT8803
10u
CDS
1M
0.47u/250V
RELAY CONTROL
LOAD
2.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 6
QW-R502-094,B