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Электронный компонент: КР1446ПН2

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K14462(21)
1
14462,
144621

,

2.7 5.5
(DC/DC
).

14462
:
, .
1446H2(21)
, -
, , ,
, Lx.
1446H21
1446H2
, EXT,
(
). ,
1446H1,
- 1446PH21.

-
100
_
+
OUT
Lx
GND
EXT
: - Lx 1446H2
- EXT 1446H21
2.5%
,
(
14462) - 10
- 0.9
- 80 %
K14462(21)
2
14462(21)
:
a) 8- DIP 2101.8-1,
b) 3- -47 (SOT-89),
c) 3- -26 (TO-92).
DIP
-47, T-26
1 1
GND
2 - -
3 - -
4 2
OUT
5 - -
6 - -
7 - -
Lx
14462
8 3
EXT
144621












K14462(21)
3

1
,
-
,
U
IN
- 7
Lx,
2
U
LX
-0.3 7
OUT,
U
O
-0.3 7
OUT,
I
0
-
20
EXT,
3
U
EXT
-0.3 6.5
EXT,
3
I
EXT
50
,
500
,
-10
+70
,
-60
+85
: 1 - ,
2 - 1446H2,
3 - 1446H21.
K14462(21)
4
(T = 25
10 C)
-
2.633 2.7 2.768 U
IN
= 1.8
2.925 3.0 3.057 U
IN
= 1.8
3.120 3.2 3.280 U
IN
= 2.0
3.218 3.3 3.383 U
IN
= 2.0
3.510 3.6 3.690 U
IN
= 2.0
4.388 4.5 4.613 U
IN
= 2.5

,
I
O
10
1
U
O
4.875 5.0 5.125 U
IN
= 3.0

,
U
OS
0.8
0.9
I
O
=1
U
IN
: 02

,
U
OH
0.7
I
O
=1
U
IN
: 20
45
50
55
60
65
80
1
3
I
CC1
90
Uin=Uo*0.95
2
4
I
CC2
7
Uin=Uo+0.5

EXT,
2
I
EXTH
-1.5
U
EXT
=U
O
-0.4

EXT,
2
I
EXTL
1.5 U
EXT
=0.4

,
F
OSC
75 100
130
Uin=Uo*0.95

, %
Maxdty 60 75 80 Uin=Uo*0.95
, %
80
: 1 - ,
2.7 5.5 0.1,
2
-
1446H21
3
-
4
-






K14462(21)
5
a) 14462
Lx
OUT
GND
C
+
U
O
D
L
U
IN
:
L () 82
(Sumida Electric Co., Ltd.)
D ( )
MA721 (Matsushita Electronics Corporation)
C () 100
()

) 144621
L
EXT OUT
GND
C
+
U
O
D
U
IN
Tr

:
L () 28
(Troidal Core)
D ( ) HRP22
(Hitachi)
C () 100
()