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LB1868M
Block Diagram and Sample Application Circuit
VIN
D
R1
R2
IN+
IN– H
ST
Constant
current
source
Thermal
shutdown
Control block
CT
C1
0.47 to 10 µF
Truth Table
ST
IN+
IN–
CT OUT1 OUT2 RD
FG
H
H
L
L
H
H
L
L
L
H
L
H
H
L
H
L
H
L
L
H
L
L
L
or
L
H
L
L
H
L
H
OPEN H
L
H
H
H
H
L
L
H
H
H
H
H
H
*RD is a latch type output.
L1
L2
OUT1
BC
Z1
Z2
OUT2
FG
RD
GND
No. 6203-3/5