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Электронный компонент: A2012

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50ms/div
V
OUT
= 3.3V, C
OUT
= 0pF, R
L
= 2k
TIMING RELATIONSHIPS
V
IN
V
OUT
POWER FAIL
STBY
12
(
)
(
)
(
1
)
( LBO )
SW1
(
)
(
)
POWER FAIL
( LBO
1)
50ms
(
2
)
(house
keeping)
LBO
C1
R3
STBY
(1.15V)
IC
IC1
350mV
150mA
10A
11.5V
EDN 3/16/95
POWER FAIL
S1
7
3, 6
V
IN
C1
1
F
R2
1M
R1
1k
R3
220k
GND
V
REF
STBY
1
LBO
SET
2
LBI
OUT
8
LOW-BATTERY
COMPARATOR
ERROR
AMPLIFIER
R4
1M, 0.1%
R5
49.9k, 0.1%
R6
604k, 0.1%
IN
5
4
V
OUT
3.3V
IC1
MAX882
DESIGN SHOWCASE
1
S1
2
1
3