TEA1024/ TEA1124
Parameters
Test Conditions / Pins Symbol Min
Ramp generator, figures 3, 4
Pin 1
Period
TEA1024
T
TEA1124
Step number
n
Initial voltage
Final voltage
Internal reference
–V1
1.2
–V1
3.3
Temperature coefficient of
internal reference
"TCRef
Pulse amplifier
Pin 5
Output pulse current
Output pulse width
VG ≤ 1.5 V
X VSync = 230 V ,
W R2 = 220 k
–IO
50
t0
t1
t2
Typ
Max
Unit
640
1280
16
1.4
1.6
ǒ Ǔ 3.6
3.9
) VS 2.5%
4–7.5%
1.2
ms
V
V
V
mV/K
100
mA
33
ms
65
110
Applications
95 11416
D1 1N4007
L
390 kW/
0.5 W
R2
(Rsync)
W R1 22 k /
2W
Load
0.7...1.5 kW
NTC / M87
B value = 3474
W R(25) = 10 k
W R(30) = 8 k
W R(10) = 20 k
7
1
Ramp generator
TEA 1024 – 640 ms
Sync. logic
TEA 1124 –1280 ms
Protection
2
Comparator
+
–
3
NC
8
NC
4
Supply
m C1 100 F
16 V
VM =
230 V ~
6
TIC
236N MT2
5
RG
MT1
Pulse
68 W
amplifier
N
Figure 10. Simple temperature regulation with maximum proportional range
6 (8)
TELEFUNKEN Semiconductors
Rev. A1, 24-May-96