UAA4713DP [STMICROELECTRONICS]
MOTION DETECTOR INTERFACE; 运动检测器接口
| 型号： | UAA4713DP |
| 厂家： | 
ST |
| 描述： | MOTION DETECTOR INTERFACE |
| 文件： | 总14页 (文件大小：325K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UAA4713
MOTION DETECTOR INTERFACE
ADVANCE DATA
50/ 60 Hz 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
DIP-14
SO-14
ORDERING NUMBERS:
UAA4713DP
UAA4713FP
DESCRIPTION
The UAA4713 is a monolithic integrated circuit in-
tended to control triac or relay switch for AC-
mains timer applications.The device can be used
in a wide range of industrial and consumer appli-
cations as light control, automatic door opening
detector, fire alarm, fluid level control .
The circuit processes the output signal of an infra-
red pyroelectric detector which senses tempera-
ture changes caused by heat radiation of the hu-
man body.
If the sensor detects a temperature change, a
programmable timer will start and switch a lamp
or other loads to the mains.
A further input for a photo-resistive sensor allows
to program circuit operation depending on the
day-light intensity.
Internal circuits avoid false triggering of the exter-
nal actuators. (see functional diagram).
BLOCK DIAGRAM
December 1991
1/14
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
UAA4713
FUNCTIONAL DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Test Conditions
Unit
mA
mA
mA
mA
V
I7
I7
AC Supply Current
60
200
Peak Current (T.P < 200µs)
I7
Sourge Current (not repetitive 10ms)
ZCD Max. Input Current
500
I9
5
V6-3
V8-3
V14-3
V10-12
Top
Tstg,Tj
Ptot
Negative Clamp Voltage
-9
Positive Clamp Voltage
9.5
V
Comp. Input Voltage
±8
V
Differential Input Voltage
±8
V
Operating Temperature
-25 to 85
-40 to 150
650
°C
Junction and Storage Temperature
Total Power Dissipation (Tj = 85°C)
°C
mW
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb Thermal Resistance Junction-ambient
max
100
°C/W
2/14
UAA4713
PIN CONNECTION (Top view)
PIN FUNCTIONS
Pin
1
Symbols
TCI
Functions
Time control Input
2
PRI
Photosensor comparator input
Ground
3
GND
ROUT
TOUT
V-
4
Relay output
5
Triac output
6
Negative clamp voltage
AC-input supply
7
ACI
8
V+
Positive clamp voltage
Zero cross detector
Non-invert input sensor amplifier
Sensor reference voltage
Invert input sensor amplifier
Output sensor amplifier
Window comparator input
9
ZCD
NII
10
11
12
13
14
VREF
II
OP OUT
WCI
3/14
UAA4713
ELECTRICAL CHARACTERISTICS (IS = + 2mA to +10mA;Tamb = 25°C unless otherwise specified)
Symbol
IS
Parameter
Test Condition
Pin
7
Min.
±0.7
-7.8
7.6
Typ.
Max.
+ 15
-7
Unit
mA
V
Operative Supply Current
V-
Negative Clamping Voltage ±IS = 0.7mA
6
V+
Positive Clamping Voltage
8
8.4
V
VREF
Sensor Reference Voltage
IREF = 50µA
REF = 200µA
Output Current Relay Driver during on-time VROUT = 0V
11
6
5
6.6
7.2
7.2
V
V
I
IROUT
4
4
80
µA
VR HIGH
Relay Driver Source
Saturation Voltage
IR OUT = 80µA
2
8
V
IR
Relay Sink Output Current
Triac Firing Current
VR OUT = 0.4V during on-time
4
5
9
1
mA
mA
V
ITOUT
VZCD
50
65
Zero Cross Detector
Clamping Voltage
±7.4
±8
±8.6
10
IZCD
IPRI
Zero Cross Detector
Operating Current
9
2
2
1.6
6
µA
µA
V
Photoresistor Source
Current
VPRI = 0V
10
14
VPRth
Photoresistor Threshold
Voltage
IS = 0.7mA
3
3.3
3.6
ITCI
tTIM
Timer Control Input Current VTCI 0 to V+
On-Timer Counter Duration VTCI
1
0
50
0.5
60
µA
Hz
s
14/4
(depends on the mains
frequency and on externally
11/12 V+
0
0
9/12 V+
7/12 V+
5/12 V+
3/12 V+
1/12 V+
0V (GND)
50Hz
4.48
40
3.73
33.3
67.5
135.8
272.5
s
adjustable Timer Control
Input Voltage) + 1/2 cicle
precision
s
81
s
163
327
s
s
Continue
50
tD
Delay Time Between
Window Comparator Input
and Timer Start
14/4
14/4
40
60
50
ms
60Hz
33.3
41.6
500
ms
ms
tDR
Delay Time Between Timer 50Hz
Stop to Retrigger
60Hz
600
ms
µA
V
ITOL
Vth WCI
IWCI
Triac Output Leakage Current VTO = 0V
5
10
±1.40
± 1
Window Comparator T4
Pin 2 open
14/4
14
±1.20
±1.3
Window Comparator Input
Current
VWCI = -2V to + 2V
mA
OP. AMP.
RI
IIO
Input Resistance
10/12
10/12
10/12
10/12
10/12
13
1
MΩ
nA
µA
mV
V
Input Offset Current
Input Bias Current
25
1
IIB
VIO
VCM
VO
IO
Input Offset Voltage
Common Mode Volt. Renge
Output Voltage Swing
Output Current
- 10
- 4.5
±4
+10
5
±5
V
13
1.5
mA
mA
V
ISC
GV
Output Short Circuit Current
13
3
Large Signal Open Loop
Voltage Gain
RL = 10K
80
100
4/14
UAA4713
Figure 1: Open Loop Frequency Response
Figure 2: VREF versus IREF
Figure 3: Supply Current
5/14
UAA4713
steps (see tTIM table in the electical charac-
teristics). The timer is clocked by the mains fre-
quency.
Two outputs for various applications are avail-
able.
Pin 5 is the trigger output for triac gate.
Pin 4 output can be used to switch a relay or
other loads.
The zero crossing detector provides the firing
pulse for the triac at the right time, shortly after
the zero crossing of the AC-signal.
The RC-network at pin 7 supplies current to the
circuit via a double wave rectification which is pro-
vided by a split power supply. Due to the capaci-
tive energy transfer into pin 7, the circuit will also
be supplied with current if the triac is fired. A short
wire for circuit supply is not needed.
The circuit works similar to a simple two-terminal
switch and can be installed in parallel with ordi-
nary mechanical pulse switches (fig. 4).
After a short supply connection via an external
pulse switch, the circuit timer will also start with-
out a sensor signal.
SYSTEM DESCRIPTION (see Functional Diagram)
If a heat source moves in front of the IR-detector,
the sensor delivers a quasi sinusoidal AC-signal
in the µV to mV range. The operational amplifier
amplifies the sensor signal by 72dB.
To reject an unwanted signal, a band pass filter is
needed. If the AC-level at pin 14 exceeds the win-
dow comparator thresholds, the programmable
timer will start. To suppress short sensor signals,
a 50ms time filter is implemented between the
window comparator output and the programmable
timer. This function improves the noise immunity.
After the reset of the timer a second timer will pro-
vide a 600ms dead time to prevent retriggering of
the timer. This function avoids restarting of the
timer, when the turned off lamp temperature. de-
creases
The lamp switched by the triac can be located
close to the sensor.
To avoid circuit operation during day-time, a
photo resistor (LDR) senses the light intensity and
switches off the circuit. The capacitor at pin 2 pre-
vents circuit start-up during short shadow phases,
when a person passes by the sensor.
From the analog input pin 1 via the AD-converter
the on-time duration can be programmed in 7
Therefore the circuit can also be used as an ordi-
nary light timer without the IR-moving sensor fea-
ture.
Figure 4
Figure 5: Different Possible Filter Solutions
6/14
UAA4713
Figure 6: Triac Application
7/14
UAA4713
Figure 7: Relay Application
8/14
UAA4713
APPLICATION INFORMATION
1. HOW TO CHOOSE THE TRIAC ASSOCIATED
TO THE MOTION DETECTOR UAA4713
b)The thermal fast fuse behaviour during
short-circuit condition.
(I2t) (Triac) > (I2t) (fuse)
To select the ITsm (given as a minimum value) the
following table is suggested.
Analysis of the Triac Associated to the Motion
Detector UAA4713
Mains: VAC (V)
240V
110V
Associated with the UAA4713, the Triac is de-
fined by the driver output stage (Triac output pin
5) and the characteristics of the load.
The Triac is consequentlydefined by:
1) The gate sensitivity
Power (W)
600
1000
>1000
ITsm(min)
50
80
>100
ITsm (min)
80
120
>150
2) The surge current capability
3) The RMS Triac current
4) The blocking voltage capability
3) RMS Triac Current
The RMS Triac current ITRMS is defined by the
light power P:
1) The gate sensitivity
ITRMS > 1. 25 x P x VAC
The ”Triggering gate current” is the parameter to
be taken into consideration. The IGT is given at
25°C. as a maximum value required to trigger the
Triac.
It depends also on the heat sink which has to limit
the junction temperature in the worse case condi-
tions (Tamb max and ITRMS)
.
With the snubberless triac ITRMS ranges from 6A
to 25A.
ex. BTA06-600CW = IGT max (mA) = 35mA
The UAA4713 Triac output provides a current of
65mA typical.
4) Blocking Voltage Capability
I
Tout = 65mA(Typ) = IG
The maximum blocking voltage VDRM is defined
by the mains:
In order to control the Triac properly IG should be
greater than 1.5 x IGT or
Mains Voltage
Country
VDRM (V)
ITout > 1.5 IGT
(V) VAC
For this reason it is suggested to use a snubber-
less Triac of the CW series (IGT < 35mA).
EUROPE
USA
240
600
400
110
2) The surge current capability
5) Conclusion:
In the Triac databook the surge current capability
of the Triac is given by the non repetitive surge
peak current:
Selector guide with the above parameters the op-
timal device selection for a given power to be
controlled is given in the following table:
ITSM
MAINS VOLTAGE VAC (V)
240 110
LIGHT POWER
(W)
ex. BTA06-600CW
ITSM at TJ initial = 25°C
600
BTA 06 600 CW BTA 08 400 CW
BTA 08 600 CW BTA 12 400 CW
t = 8.3mA: 63A
t = 10ms: 60A
1,000
> 1,000
BTA X 600 CW
X = 10
BTA X 400 CW
X = 12
X = 16 (A)
The choice of the Triac is defined by the following
application parameters:
X = 12
X = 16
a)The starting performance, and the ratio of
the nominal resistance to the cold resis-
tance, KR
Ref: High Performance Triacs that need no snub-
ber (DSTRIACBK/1088)
Imax > KR x Inominal x √2
9/14
UAA4713
APPLICATION INFORMATION (continued)
2. MOTION DETECTOR DEMO BOARD
This document allows the user to construct rap-
idly a Demo and Test Board for the UAA4713
Figure 8: Demo Board Diagram
10/14
UAA4713
APPLICATION INFORMATION (continued)
Demo Board - Part List
QTY
DEVICE
DESCRIPTION
SUPPLIER
SGS-THOMSON
1
1
UAA4713DP OR UAA4713FP
INTEGRATED CIRCUIT
BTA06-600 (240V mains)
BTA08-400 (110V mains)
TRIAC
TRIAC
SGS-THOMSON
SGS-THOMSON
1
1
KRX10FL or
IRA - EI00S series
SENSOR WITH FRESNEL LENS PHILIPS COMPONENTS
Pyroelectic Infrared Sensor
MURATA
LDR07
PHOTORESISTOR
PHILIPS COMPONENTS
CAPACITORS
QUANTITY
RESISTORS (0.25W)
VALUE
QUANTITY
VALUE
1MΩ
4
2
2
1
1
1
1
100µF/35V
330nF
3
3
47kΩ
47nF
1
680Ω
4.7nF
1
1KΩ
68nF 400V
150nF 250V
3.3µF 35V
1
470KΩ
220KΩ
500KΩ
1
2 POTENTIOMETERS
Figure 9: Demo Board Photo IRA - E100S
11/14
UAA4713
DIP14 PACKAGE MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
0.51
1.39
TYP.
MAX.
MIN.
0.020
0.055
MAX.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
0.335
0.100
0.600
e3
F
15.24
7.1
5.1
0.280
0.201
I
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
12/14
UAA4713
SO14 PACKAGE MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
1.75
0.25
1.6
MIN.
MAX.
0.069
0.009
0.063
0.018
0.010
A
a1
a2
b
0.1
0.004
0.35
0.19
0.46
0.25
0.014
0.007
b1
C
0.5
0.020
c1
D
45 (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
0.4
4.0
0.15
0.157
0.050
0.027
L
1.27
0.68
0.016
M
S
8 (max.)
13/14
UAA4713
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men-
tioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex-
press written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All RightsReserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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14/14
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