OM5428 Datasheet, PDF (11/16 Pages) List of Unclassifed Manufacturers – General purpose triggering circuit

Active
230
Vac
Neutral
R1
1MΩ
C1
220µF
16V
R3
1MΩ
C2
5nF
Rz
500KΩ
VR25
Rs
100KΩ
VR37
LOAD
T1
Triac
1
PW
2
XOUT
3
DIFFEN
4
QC+
5
IC+
6
IC-
7
QC-
8
SDIS
OM5428
16
XDIS
15
FLY
14
SAW
13
RMNS
12
VCC
11
VEE
10
TRIG
9
AMPIN
R2
300KΩ
C3
5nF
Rg
250Ω
Vcontrol
Fig.5 Typical application of the OM5428 as a single-phase control circuit. The circuit produces a trigger pulse at the gate of the triac. The pulse
is produced when the voltage on pin IC- (related to mains zero crossing) becomes greater than the control voltage. The arrangement forms a
full-wave AC controller.