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PDF TEA1124 Data sheet ( Hoja de datos )
| Número de pieza | TEA1124 | |
| Descripción | Zero Voltage Switch with Fixed Ramp | |
| Fabricantes | TEMIC Semiconductors | |
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TEA1024/ TEA1124
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
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.)
Features
D Direct supply from the mains
D Definite IC switching characteristics
D Very few external components
D Full wave drive – no dc component in the load circuit
D Current consumption ≤ 1.5 mA
D Output short circuit protected
D Simple power control
D Integrated ramp generator
D Reference voltage variable by external resistance
D Pulse position optimization
Package: DIP8
Block Diagram
95 10871
390 kW
R2
(Rsync)
D1 1N4007
WR1 22 k /
2W
Load
1000 W
L
7
1
56 kW
Ramp generator
TEA 1024 – 640 ms
TEA 1124 – 1280 ms
Sync. logic
min.
100 kW
max.
Protection
2
43 kW
Comparator
+
–
3
8
NC NC
4
Supply
C1
6
100 mF
16 V
VM=
230 V ~
TIC
236N MT2
5
Pulse
amplifier
RG
68 W
MT1
N
Figure 1. Typical block diagram – open loop power control
TELEFUNKEN Semiconductors
Rev. A1, 24-May-96
1 (8)
1 page  
Absolute Maximum Ratings
Reference point Pin 6
Parameters
Current consumption
Sync. current
Comparator input current
t ≤ 10 ms
t ≤ 10 ms
Input voltages
Power dissipation
Junction temperature
Tamb = 45°C
Tamb = 100°C
Ambient temperature range
Storage temperature range
TEA1024/ TEA1124
Pin 4
Pin 7
Pin 2
Pin 1,4,5
Pin 5
Symbol
–IS
is
ISync
"iSync
II
–VI
+VI
Ptot
Tj
Tamb
Tstg
Value
30
150
5
40
1
≤ VS
≤ 0.5
400
125
125
0 to 100
–40 to + 125
Unit
mA
mA
mA
V
mW
°C
°C
°C
Thermal Resistance
Junction ambient
Parameters
Symbol
RthJA
Maximum
200
Unit
K/W
Electrical Characteristics
Supply voltage –VS = 5.6 V, Tamb = 25°C, f = 50 Hz, reference point Pin 6, unless otherwise specified
Parameters
Supply voltage limitation
Current consumption
Synchronization
Voltage limitation
Synchronization current
Zero cross detection
Comparator, figure 5
Input zero voltage
Input quiescent current
Common mode input
range
Test Conditions / Pins
–I4 = 1 mA
Pos. half, cycle
Zero cross over
(Pin 5 open)
neg. half cycle
Pin 4
Pin 4
Pin 4
Pin 4
Pin 7
±I7 = 1 mA
Pin 1, 2
Pin 2
Pin 1, 2
Symbol
–VS
–IS
–IS
–IS
"VI
"ISync
"ISync
V10
IB
–VIC
Min Typ Max
5.7 7.4
1
1
1.8
1.0
0.15
25
1.8
10
1
1 (VS–1.6)
Unit
V
mA
V
mA
mA
mV
mA
V
TELEFUNKEN Semiconductors
Rev. A1, 24-May-96
5 (8)
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TEA1124.PDF ] | |
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