tea1124 ETC-unknow, tea1124 Datasheet

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tea1124

Manufacturer Part Number
tea1124
Description
Zero Voltage Switch With Fixed Ramp
Manufacturer
ETC-unknow
Datasheet

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Part Number:
TEA1124
Quantity:
5 510
Part Number:
TEA1124
Manufacturer:
TI
Quantity:
5 510
TELEFUNKEN Semiconductors
Rev. A1, 24-May-96
Zero Voltage Switch with Fixed Ramp
Description
The monolithic integrated bipolar circuit, TEA1024/
TEA1124 is a zero voltage switch for triac control in
domestic equipments. It offers not only the control of a
triac in zero crossing mode but also the possibility of
power control. This is why the IC contains a mains
Features
D
D
D
D
D
D
Block Diagram
min.
max.
Direct supply from the mains
Definite IC switching characteristics
Very few external components
Full wave drive – no dc component in the load circuit
Current consumption 1.5 mA
Output short circuit protected
95 10871
100 k
56 k
W
W
43 k
1
2
Protection
W
TEA 1124 – 1280 ms
TEA 1024 – 640 ms
Ramp generator
Figure 1. Typical block diagram – open loop power control
+
Comparator
NC
3
390 k
Sync. logic
W
NC
8
7
(R
R
synchronized ramp generator with 640 ms (1280 ms)
duration (50 Hz). It is suitable for a typical load of 750 W
(1000 W) meeting the Flicker Standard. (values in
brackets relate to TEA1124.)
D
D
D
D
Package: DIP8
sync
2
Simple power control
Integrated ramp generator
Reference voltage variable by external resistance
Pulse position optimization
)
TEA1024/ TEA1124
D
R
1
Supply
1
amplifier
Pulse
4
2 W
22 k
1N4007
W
/
6
5
C
1
R
68
G
1000 W
100
W
16 V
236N
Load
TIC
m
F
MT2
MT1
230 V ~
V
N
M
L
=
1 (8)

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tea1124 Summary of contents

Page 1

... Zero Voltage Switch with Fixed Ramp Description The monolithic integrated bipolar circuit, TEA1024/ TEA1124 is a zero voltage switch for triac control in domestic equipments. It offers not only the control of a triac in zero crossing mode but also the possibility of power control. This is why the IC contains a mains ...

Page 2

... D/A converter so that the voltage at Pin 1 is primarily specified via the internal voltage divider (ramp starting voltage). In the maximum state of the 4 stage (5 stage – TEA1124) D/A converter, the current sink overtakes the maximum current, whereby the ramp’s final (end) voltage has reached ...

Page 3

... Figure 5 shows the protective circuit of the comparator. Pin 1 is the non- inverting input. 1 Ramp generator 6 GND – Figure 5. Protective circuit of the comparator TELEFUNKEN Semiconductors Rev. A1, 24-May-96 TEA1024/ TEA1124 – stage ripple counter 3 2 Divider A 2 Period 2 1 ...

Page 4

... TEA1024/ TEA1124 10. 230 V mains 1. 0.10 0.01 10 100 1000 11939 Figure 6. 2 =230V Mains 2 1 200 400 600 Figure 7. Ignition (Firing) Current The necessary ignition current depends on the specified triac. With the help of a resistance possible to limit ...

Page 5

... Synchronization Voltage limitation Synchronization current Zero cross detection Comparator, figure 5 Input zero voltage Input quiescent current Common mode input range TELEFUNKEN Semiconductors Rev. A1, 24-May-96 TEA1024/ TEA1124 Symbol Value Pin 4 – 150 s Pin Sync i 40 " ...

Page 6

... TEA1024/ TEA1124 Parameters Test Conditions / Pins Ramp generator, figures 3, 4 TEA1024 Period TEA1124 Step number Initial voltage Final voltage Internal reference Temperature coefficient of internal reference Pulse amplifier Output pulse current V 1 Output pulse width V = 230 V Sync R = 220 k 2 Applications 95 11416 Ramp generator 1 TEA 1024 – ...

Page 7

... TEA1024 – 640 ms R TEA1124 –1280 NTC / M87 Protection B value = 3474 (25 (30) 2 (10) Figure 11. Temperature regulation with proportional range 640 ms ramp cycle Dimensions in mm ...

Page 8

... TEA1024/ TEA1124 Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment ...

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