Manual
Manuals
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Rainbow Electronics Manuals
Computer Hardware
DS1680
1
2
3
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5
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10
DS1680
9
of
23
POWER
-
FAIL COMPARATOR
Figure 6
DS1680
V
CC
GND
PFO
PFI
+5V
C1
R1
VIN
R2
R3
to µP
V
TRIP
= 1.25
V
H
= 1.25 /
R2||R3
R1 + R2||R3
R1 + R2
R2
V
I
–
1.25
R1
+
5
-
1.25
R3
=
1.25
R2
1
...
...
7
8
9
10
11
...
...
23
