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UAA4713DPSTN/a1055avaiMOTION DETECTOR INTERFACE
UAA4713FPSTN/a149avaiMOTION DETECTOR INTERFACE


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UAA4713DP-UAA4713FP
MOTION DETECTOR INTERFACE
UAA4713
MOTION DETECTOR INTERFACE
ADVANCE DATA

50/60Hz AC SUPPLY
INPUT FOR PYROELECTRICAL SENSOR
INPUT FOR PHOTORESISTIVE SENSOR
SENSOR FILTER AMPLIFIER
PROGRAMMABLE ON-TIMER
TRIAC OUTPUT AND RELAY OUTPUT
SHORT CIRCUIT PROTECTION
LOW QUIESCENT CURRENT
TWO-WIRE TECHNIQUE
DESCRIPTION

The UAA4713isa monolithicintegrated circuitin-
tendedto control triacor relay switch for AC-
mains timer applications.The device can be useda wide rangeof industrial and consumer appli-
cations as light control, automatic door opening
detector, fire alarm, fluid level control.
The circuit processes the output signalofan infra-
red pyroelectric detector which senses tempera-
ture changes causedby heat radiationof the hu-
man body. the sensor detectsa temperature change,a
programmable timer will start and switcha lamp other loadsto the mains. further input fora photo-resistive sensor allows program circuit operation depending on the
day-lightintensity.
Internal circuits avoid false triggeringof the exter-
nal actuators. (see functional diagram).
BLOCK DIAGRAM
DIP-14 SO-14
ORDERING NUMBERS:

UAA4713DP UAA4713FP
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Test Conditions Unit
AC Supply Current 60 mA Peak Current (T.P< 200μs) 200 mA Sourge Current (not repetitive10ms) 500 mA ZCD Max. Input Current 5 mA
V6-3 Negative Clamp Voltage -9 V
V8-3 Positive Clamp Voltage 9.5 V
V14-3 Comp. Input Voltage ±8V
V10-12 Differential Input Voltage ±8V
Top Operating Temperature -25to85 °C
Tstg,Tj Junction and Storage Temperature -40to 150 °C
Ptot Total Power Dissipation(Tj =85°C) 650 mW
THERMAL DATA
Symbol Parameter Value Unit
UAA4713
PIN CONNECTION (Top view)
Pin Symbols Functions
TCI Time control Input PRI Photosensor comparator input GND Ground
4ROUT Relay output
5TOUT Triac output V- Negative clamp voltage ACI AC-input supply V+ Positive clamp voltage ZCD Zero cross detector NII Non-invert input sensor amplifier VREF Sensor reference voltage II Invert input sensor amplifier OP OUT Output sensor amplifier WCI Window comparator input
PIN FUNCTIONS
UAA4713
ELECTRICAL CHARACTERISTICS(IS=+ 2mAto +10mA;Tamb =25°C unless otherwise specified)
Symbol Parameter Test Condition Pin Min. Typ. Max. Unit
Operative Supply Current 7 ±0.7 +15 mA Negative Clamping Voltage ±IS= 0.7mA 6 -7.8 -7 V Positive Clamping Voltage 8 7.6 8.4 V
VREF Sensor Reference Voltage IREF =50μA
IREF= 200μA 6
6.6 7.2
IROUT Output CurrentRelay Driver during on-time VROUT =0V 4 80 μA HIGH Relay Driver Source
Saturation Voltage OUT =80μA4 2 V Relay Sink Output Current VR OUT= 0.4V during on-time 4 1 8 mA
ITOUT Triac Firing Current 5 50 65 mA
VZCD Zero Cross Detector
Clamping Voltage ±7.4 ±8 ±8.6 V
IZCD Zero Cross Detector
Operating Current 1.6 10 μA
IPRI Photoresistor Source
Current
VPRI =0V 2 6 10 14 μA
VPRth Photoresistor Threshold
Voltage= 0.7mA 2 3 3.3 3.6 V
ITCI Timer Control Input Current VTCI0toV+ 1 0 0.5 μA
tTIM On-Timer Counter Duration
(dependson the mains
frequency andon externally
adjustable Timer Control
Input Voltage)+ 1/2 cicle
precision
VTCI 14/4 50 60 Hz
11/12 V+ 0 0 s
9/12 V+ 4.48 3.73 s
7/12 V+ 40 33.3 s
5/12 V+ 81 67.5 s
3/12 V+ 163 135.8 s
1/12 V+ 327 272.5 s (GND) Continue Delay Time Between
Window Comparator Input
and Timer Start
50Hz 14/4 40 50 60 ms
60Hz 33.3 41.6 50 ms
tDR Delay Time Between Timer
Stopto Retrigger
50Hz 14/4 500 ms
60Hz 600 ms
ITOL Triac Output Leakage Current VTO =0V 5 10 μA
VthWCI Window ComparatorT4 Pin2 open 14/4 ±1.20 ±1.3 ±1.40 V
IWCI Window Comparator Input
Current
VWCI= -2Vto+2V 14 ± 1 mA
OP. AMP.
Input Resistance 10/12 1 MΩ
IIO Input Offset Current 10/12 25 nA
IIB Input Bias Current 10/12 1 μA
VIO Input Offset Voltage 10/12 -10 +10 mV
VCM Common Mode Volt. Renge 10/12 -4.5 5 V Output Voltage Swing 13 ±4 ±5V Output Current 13 1.5 mA
ISC Output ShortCircuit Current 13 3 mA
UAA4713
Figure1: Open Loop FrequencyResponse Figure2: VREF versus IREF
Figure3:
Supply Current
UAA4713
SYSTEM DESCRIPTION (see Functional Diagram)a heat source movesin frontof the IR-detector,
the sensor deliversa quasi sinusoidal AC-signal the μVto mV range. The operational amplifier
amplifies the sensor signalby 72dB. rejectan unwanted signal,a band pass filteris
needed.If the AC-levelat pin14 exceeds the win-
dow comparator thresholds, the programmable
timer will start.To suppress short sensor signals, 50ms time filteris implemented between the
window comparator output and the programmable
timer. This function improves the noise immunity.
After the resetof the timera second timer will pro-
videa 600ms dead timeto prevent retriggeringof
the timer. This function avoids restartingof the
timer, when the turnedoff lamp temperature. de-
creases
The lamp switched by the triac can be located
closeto the sensor. avoid circuit operation during day-time,a
photo resistor (LDR) senses the light intensity and
switchesoff the circuit. The capacitorat pin2 pre-
vents circuit start-up during short shadow phases,
whena person passesby the sensor.
From the analog input pin1 via the AD-converter
the on-time duration can be programmedin7
steps (see tTIM tablein the electical charac-
teristics). The timeris clocked by the mains fre-
quency.
Two outputs for various applications are avail-
able.
Pin5is the trigger outputfor triac gate.
Pin4 output can be usedto switcha relayor
other loads.
The zero crossing detector provides the firing
pulse for the triacat the right time, shortly after
the zero crossingof the AC-signal.
The RC-networkat pin7 supplies currentto the
circuit viaa double wave rectification whichis pro-
videdbya split power supply. Dueto the capaci-
tive energy transfer into pin7, the circuit will also supplied with currentif the triacis fired.A short
wire for circuit supplyis not needed.
The circuit works similartoa simple two-terminal
switch and can be installedin parallel with ordi-
nary mechanical pulse switches (fig.4).
Aftera short supply connection via an external
pulse switch, the circuit timer will also start with-
outa sensor signal.
Therefore the circuit can alsobe usedasan ordi-
nary light timer without the IR-moving sensor fea-
ture.
Figure4
Figure5:
Different Possible Filter Solutions
UAA4713
Figure6: Triac Application
UAA4713
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