參數(shù)資料
型號: TEA1124
英文描述: Zero Voltage Switch with Fixed Ramp
中文描述: 零電壓開關(guān)固定斜
文件頁數(shù): 1/8頁
文件大?。?/td> 114K
代理商: TEA1124
TEA1024/ TEA1124
TELEFUNKEN Semiconductors
Rev. A1, 24-May-96
1 (8)
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
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
Simple power control
Integrated ramp generator
Reference voltage variable by external resistance
Pulse position optimization
Package:
DIP8
Block Diagram
D
1
Ramp generator
TEA 1024 – 640 ms
TEA 1124 – 1280 ms
Sync. logic
Supply
+
Protection
2
1
7
4
6
5
Pulse
amplifier
Comparator
3
8
NC
NC
R
1
2 W
1N4007
C
1
100 F
16 V
Load
1000 W
L
56 k
100 k
min.
max.
43 k
TIC
236N
N
V
M
=
230 V ~
95 10871
390 k
(R
sync
)
R
2
MT2
MT1
68
R
G
22 k /
Figure 1. Typical block diagram – open loop power control
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