
LTC6991
20
6991fb
TYPICAL APPLICATIONS
Isolated AC Load Flasher
LTC6991
GND
SET
RSET
237k
V+
0.1μF
5V
RST
5
2
10 SECONDS ON/OFF
66
4
2
1
4
3
1
OUT
DIV
R3
10k
OPEN = OFF
GND = ON
R2
392k
R5
5.94k
U3
NTE5642
ISOLATION BARRIER = 7500V
HOT
117V AC
NEUTRAL
AC
R6
10k
R4
215Ω
R1
1M
C2
0.022μF
ZERO
CROSSING
U2
MOC3041M
R7
100Ω
40W LAMP
6991 TA05
Interval (Wiper) Timer
LTC6991
0.1μF
2s
5s
15s
30s
1m
2m
4m
OFF
66.5k
280k
182k
18.2k
1M
V+
RST
GND
SET
OUT
V+
DIV
LTC6993-1
0.1μF
OUTPUT
1M
tINTERVAL
2 SECONDS TO
4 MINUTES
V+
2s
TRIG
GND
SET
OUT
V+
DIV
681k
6991 TA06
383k
2s
5s
15s
30s
5V
1m
2m
4m
OFF
V+
15s
30s
1m
2m
OFF
280k
113k
133k