SGS-THOMSON UAA4713 Technical data

查询UAA4713供应商

50/ 60Hz ACSUPPLY
INPUTFORPYROELECTRICALSENSOR
INPUTFORPHOTORESISTIVE SENSOR
SENSORFILTER AMPLIFIER
PROGRAMMABLEON-TIMER
TRIACOUTPUTANDRELAYOUTPUT
SHORTCIRCUIT PROTECTION
LOW QUIESCENTCURRENT
TWO-WIRE TECHNIQUE

DESCRIPTION

The UAA4713 is a monolithicintegrated circuit in­tended to control triac or relay switch for AC­mains timer applications.Thedevice can be used
in a wide range of industrial and consumer appli­cations as light control, automatic door opening
detector, fire alarm, fluid level control .

The circuit processes the output signal of an infra­red pyroelectric detector which senses tempera­ture changes caused by heat radiation of the hu­manbody.

UAA4713

MOTION DETECTOR INTERFACE

ADVANCE DATA

DIP-14 SO-14

ORDERING NUMBERS:

UAA4713DP UAA4713FP

If the sensor detects a temperature change, a
programmable timer will start and switch a lamp
or other loads to themains.

A further input for a photo-resistivesensor allows
to program circuit operation depending on the
day-lightintensity.

Internal circuits avoid false triggering of the exter­nal actuators. (see functional diagram).

BLOCK DIAGRAM

December 1991

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

1/14

UAA4713

FUNCTIONAL DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Test Conditions Unit

I7 AC Supply Current 60 mA
I7 Peak Current (T.P < 200µs) 200 mA
I7 Sourge Current (not repetitive 10ms) 500 mA

I9 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 -25to 85 °C

T

stg,Tj

P

Junction and Storage Temperature -40 to 150 °C
Total Power Dissipation (Tj=85°C) 650 mW

tot

THERMAL DATA

Symbol Parameter Value Unit

R

th j-amb

Thermal Resistance Junction-ambient max 100 °C/W

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PIN CONNECTION (Top view)

UAA4713

PIN FUNCTIONS

Pin Symbols Functions

1 TCI Time control Input
2 PRI Photosensorcomparator input
3 GND Ground
4R
5T

OUT
OUT

6 V- Negative clamp voltage
7 ACI AC-inputsupply
8 V+ Positive clamp voltage

9 ZCD Zero cross detector
10 NII Non-invertinput sensor amplifier
11 V

REF

12 II Invert input sensor amplifier
13 OP OUT Output sensor amplifier
14 WCI Window comparator input

Relay output
Triac output

Sensor reference voltage

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UAA4713

ELECTRICAL CHARACTERISTICS (IS= + 2mA to +10mA;T

=25°Cunless otherwise specified)

amb

Symbol Parameter Test Condition Pin Min. Typ. Max. Unit

I

V- Negative Clamping Voltage ±I

Operative Supply Current 7 ±0.7 + 15 mA

S

= 0.7mA 6 -7.8 -7 V

S

V+ Positive Clamping Voltage 8 7.6 8.4 V

V

I

ROUT

V

R HIGH

REF

Sensor Reference Voltage I

Output CurrentRelay Driver during on-time V
Relay Driver Source

=50µA

REF

I

= 200µA

REF

=0V 4 80 µA

ROUT

I

=80µA4 2V

R OUT

11 6

5

7.2

6.6 7.2

Saturation Voltage

I

R

I

TOUT

V

ZCD

Relay Sink Output Current V

= 0.4V during on-time 4 1 8 mA

R OUT

Triac Firing Current 5 50 65 mA
Zero Cross Detector

9 ±7.4 ±8 ±8.6 V

Clamping Voltage

I

ZCD

Zero Cross Detector

9 1.6 10 µA

Operating Current

I

PRI

Photoresistor Source

V

=0V 2 6 10 14 µA

PRI

Current

V

PRth

Photoresistor Threshold

IS= 0.7mA 2 3 3.3 3.6 V

Voltage
I
t

TCI
TIM

Timer ControlInput Current V

On-Timer Counter Duration

(depends on the mains

frequency and on externally

adjustable Timer Control

Input Voltage)+ 1/2 cicle

precision

0 to V+ 1 0 0.5 µA

TCI

V

TCI

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
0V (GND) Continue

t

D

Delay Time Between

50Hz 14/4 40 50 60 ms

Window ComparatorInput
and Timer Start

60Hz 33.3 41.6 50 ms

t

DR

Delay Time Between Timer

50Hz 14/4 500 ms

Stop to Retrigger

60Hz 600 ms

I

V

I

TOL

th WCI

WCI

TriacOutputLeakage Current VTO=0V 5 10 µA
Window ComparatorT4 Pin 2 open 14/4 ±1.20 ±1.3 ±1.40 V
Window ComparatorInput

V

= -2V to + 2V 14 ± 1 mA

WCI

Current

OP. AMP.

R

I

IO

I

IB

V

V

CM

V

I

O

I

SC

G

Input Resistance 10/12 1 MΩ

I

Input Offset Current 10/12 25 nA
Input Bias Current 10/12 1 µA
Input Offset Voltage 10/12 - 10 +10 mV

IO

Common Mode Volt. Renge 10/12 - 4.5 5 V
Output Voltage Swing 13 ±4 ±5V

O

Output Current 13 1.5 mA
Output Short Circuit Current 13 3 mA
Large SignalOpen Loop

V

RL= 10K 80 100 V

Voltage Gain

V
V

4/14

UAA4713

Figure1: Open Loop FrequencyResponse

Figure3: SupplyCurrent

Figure2: V

REF

versusI

REF

5/14

UAA4713

SYSTEM DESCRIPTION (seeFunctionalDiagram)

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
amplifiesthe sensor signal by 72dB.

To reject an unwanted signal, a band pass filter is
needed.If the AC-level at pin 14 exceeds the win­dow comparator thresholds, the programmable
timer will start. To suppress short sensor signals,
a 50ms time filter is implemented between the
windowcomparator output and the programmable
timer. This function improves the noise immunity.

After the reset of the timer a second timer will pro­vide a 600ms dead time to prevent retriggering of
the timer. This function avoids restarting of the
timer, when the turned off lamp temperature. de­creases
The lamp switched by the triac can be located
closeto the sensor.

To avoid circuit operation during day-time, a
photoresistor (LDR) senses thelight intensity and
switchesoff the circuit. The capacitor at pin 2 pre­vents circuit start-up during short shadow phases,
when a person passes by thesensor.

From the analog input pin 1 via the AD-converter
the on-time duration can be programmed in 7

steps (see t

table in the electical charac-

TIM

teristics). The timer is clocked by the mains fre­quency.

Two outputs for various applications are avail­able.
Pin5 is the triggeroutput for triac gate.
Pin 4 output can be used to switch a relay or
otherloads.
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
circuitvia a double wave rectification which is pro­vided by a split power supply.Due to the capaci­tive energy transfer into pin 7, the circuit will also
be supplied with current if the triacis 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 ordi­nary mechanicalpulse switches (fig. 4).
After a short supply connection via an external
pulse switch, the circuit timer will also start with­out a sensor signal.
Therefore the circuit can also be used as an ordi­nary light timer without the IR-movingsensor fea­ture.

Figure4

Figure5: Different PossibleFilter Solutions

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Figure6: Triac Application

UAA4713

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UAA4713

Figure7: Relay Application

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UAA4713

APPLICATION INFORMATION

1. HOW TO CHOOSE THE TRIAC ASSOCIATED
TO THE MOTION DETECTORUAA4713

Analysis of the Triac Associated to the Motion
DetectorUAA4713

Associated with the UAA4713, the Triac is de­fined by the driver output stage (Triac output pin

5) and the characteristics of the load.
The Triac is consequentlydefined by:

1) Thegate sensitivity

2) Thesurge current capability

3) TheRMS Triac current

4) Theblocking voltage capability

1) The gate sensitivity

The ”Triggering gate current” is the parameter to
be taken into consideration. The I

is given at

GT

25°C. as a maximum value required to trigger the
Triac.

ex. BTA06-600CW = I

GT max

(mA)= 35mA

The UAA4713 Triac output provides a current of
65mA typical.

I

= 65mA(Typ) = I

Tout

G

In order to control the Triac properly IG should be

x I

greater than 1.5

GT

I

Tout

or

>1.5 I

GT

For this reason it is suggested to use a snubber­less Triac of the CW series (I

< 35mA).

GT

b)The thermal fast fuse behaviour during

short-circuit condition.

2

(I

t) (Triac)> (I2t) (fuse)

To select the I

(givenas a minimum value) the

Tsm

followingtable is suggested.

Mains: VAC(V) 240V 110V

Power (W)

600

1000

>1000

I

Tsm(min)

50
80

>100

I

Tsm(min)

80

120

>150

3)RMS Triac Current

The RMS Triac current I

is defined by the

TRMS

lightpower P:

I

>1.25x PxV

TRMS

AC

It depends also on the heat sink which has to limit
the junction temperature in the worse case condi­tions(T

amb max

and I

With the snubberless triac I

TRMS)

.

ranges from 6A

TRMS

to 25A.

4) Blocking Voltage Capability

The maximum blocking voltage VD

is defined

RM

by the mains:

Country

EUROPE 240 600

USA 110 400

Mains Voltage

(V) V

AC

V

DRM

(V)

2) The surge current capability

In the Triac databook the surge current capability
of the Triac is given by the non repetitive surge
peak current:

I

TSM

ex. BTA06-600CW
I

TSM

at T

J initial

=25°C

t = 8.3mA: 63A
t = 10ms: 60A

The choice of the Triac is defined by the following
applicationparameters:

a)The starting performance, and the ratio of

the nominal resistance to the cold resis­tance,KR

I

max

>KR x I

nominal

√2

x

5) Conclusion:

Selectorguide with the above parameters the op­timal device selection for a given power to be
controlledis given in the following table:

LIGHT POWER

(W)

600 BTA 06 600 CW BTA 08 400 CW

1,000 BTA 08 600 CW BTA 12 400 CW

> 1,000 BTA X 600 CW

MAINS VOLTAGE V

240 110

BTA X 400 CW
X=10
X=12
X=16

(V)

AC

X=12

X = 16 (A)

Ref: High Performance Triacs that need no snub­ber (DSTRIACBK/1088)

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UAA4713

APPLICATION INFORMATION (continued)

2. MOTION DETECTOR DEMO BOARD
Figure8: Demo Board Diagram

This document allows the user to construct rap­idlya Demoand Test Board for the UAA4713

10/14

APPLICATION INFORMATION (continued)
DemoBoard - Part List

QTY DEVICE DESCRIPTION SUPPLIER

1 UAA4713DP OR UAA4713FP INTEGRATED CIRCUIT SGS-THOMSON
1 BTA06-600 (240V mains)

BTA08-400 (110V mains)

1 KRX10FL or

IRA - EI00S series

1 LDR07 PHOTORESISTOR PHILIPS COMPONENTS

CAPACITORS RESISTORS (0.25W)

QUANTITY VALUE QUANTITY VALUE

4 100µF/35V 3 1MΩ
2 330nF 3 47kΩ
2 47nF 1 680Ω
1 4.7nF 1 1KΩ
1 68nF 400V 1 470KΩ
1 150nF 250V 1 220KΩ
1 3.3µF 35V 2 POTENTIOMETERS 500KΩ

TRIAC
TRIAC

SENSOR WITH FRESNEL LENS
Pyroelectic Infrared Sensor

SGS-THOMSON
SGS-THOMSON

PHILIPS COMPONENTS
MURATA

UAA4713

Figure9: Demo Board Photo IRA - E100S

11/14

UAA4713

DIP14 PACKAGE MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

a1 0.51 0.020

B 1.39 1.65 0.055 0.065

b 0.5 0.020

b1 0.25 0.010

D 20 0.787

E 8.5 0.335

e 2.54 0.100

e3 15.24 0.600

F 7.1 0.280

I 5.1 0.201

L 3.3 0.130

Z 1.27 2.54 0.050 0.100

mm inch

12/14

SO14PACKAGE MECHANICAL DATA

UAA4713

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.75 0.069
a1 0.1 0.25 0.004 0.009
a2 1.6 0.063

b 0.35 0.46 0.014 0.018
b1 0.19 0.25 0.007 0.010

C 0.5 0.020

c1 45 (typ.)

D 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050
e3 7.62 0.300

F 3.8 4.0 0.15 0.157

L 0.4 1.27 0.016 0.050

M 0.68 0.027

S 8 (max.)

mm inch

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 ofpatents or other rights of third parties which may result from itsuse. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men­tioned 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 ex­press writtenapproval of SGS-THOMSON Microelectronics.

 1994 SGS-THOMSON Microelectronics - All RightsReserved

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