器件名称: TEA1024
功能描述: Zero Voltage Switch with Fixed Ramp
文件大小: 114.91KB 共8页
简 介: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 D D D D D
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 Package: DIP8
D D D D
Simple power control Integrated ramp generator Reference voltage variable by external resistance Pulse position optimization
Block Diagram
95 10871
D1 390 kW R2 (Rsync) R1
1N4007 22 kW/ 2W Load 1000 W
L
7 1 56 kW Ramp generator TEA 1024 – 640 ms TEA 1124 – 1280 ms
4 6
C1
100 mF 16 V TIC 236N
V M= 230 V ~
Sync. logic
Supply
MT2 MT1
Comparator Protection min. 100 kW max. 2 43 kW NC + – 3 NC 8 Pulse amplifier
5
RG 68 W
N
Figure 1. Typical block diagram – open loop power control
TELEFUNKEN Semiconductors Rev. A1, 24-May-96
1 (8)
TEA1024/ TEA1124
Power Supply and its Limitations
The voltage limitation contained in the IC allows it to be powered from mains via series resistance R1 and recti– fyi……
