om5428 ETC-unknow, om5428 Datasheet - Page 11

• Manufacturer Part Number: om5428
• Description: General Purpose Triggering Circuit
• Manufacturer: ETC-unknow

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
Active
Neutral
C1
220µF
16V
230
Vac
R3
1MΩ
R1
1MΩ
C2
5nF
Vcontrol
Rz
500KΩ
VR25
DIFFEN
full-wave AC controller.
XOUT
SDIS
QC+
QC-
PW
IC+
IC-
1
2
3
4
5
6
7
8
OM5428
16
15
14
13
12
11
10
9
XDIS
FLY
SAW
RMNS
VCC
VEE
TRIG
AMPIN
R2
300KΩ
C3
5nF
Rs
100KΩ
VR37
LOAD
T1
Triac
Rg
250Ω