TCA785 Datasheet, PDF (7/16 Pages) Siemens Semiconductor Group – Phase Control IC

TCA 785
Application Hints for External Components
min
Ramp capacitance C10 500 pF
Triggering point
Charge current
tTr =
V11 × R9 × C10
VREF × K
I10 =
VREF × K
R9
max
1 µF¹⁾
2)
2)
The minimum and maximum values of I10
are to be observed
Ramp voltage
VREF × K × t ²⁾
V10 max = VS – 2 V V10 =
R9 × C10
Pulse Extension versus Temperature
1) _{Attention to flyback times}
2) _{K = 1.10 ± 20 %}
Semiconductor Group
7