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Número de pieza
componentes Descripción
CA1523(1994) Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
CA1523
(Rev.:1994)
Voltage Regulator Control Circuit for Variable Switching Regulator
Intersil
CA1523 Datasheet PDF : 6 Pages
1
2
3
4
5
6
CA1523
V
CC
56K
0.0033
µ
F
+
2
CHARGE
CURRENT
7
13 ZENER
V
CC
15K
R
T
ERROR
VOLTAGE
1
20K
TRIM
RES.
TIMING
14
240pF
6.8V
REF
3V
REF.
CURRENT
SET UP
REF. VOLT.
SOURCES
I
C/ 2
S1
+6.8V
REF
I
C
V
CC
Q HIGH
CLOSES S1
V
L
2.5V
+
-
SQ
F/F
S2
S2 OPEN
I
D
FOR
˜
V
I
I<
C/
<
2
6.8V
-
+
5V
R
V
H
WHEN V10 > 6.8V
-
SQ
+
5V
REF
V
CC
>6.4V
(CONTROL
CIRCUIT
3K
GND)
3
1.2V
-
REF.
+
Q LOW
S3
CLOSES S3
F/F
RQ
V
CC
12K
SLOW
START
10
12
ON/OFF
ON
220
V
CC
220
+5V
OFF
1K
30K
V
IO
9
LOGIC
OUT
FIGURE 1. TEST CIRCUIT FOR THE CA1523
8 NC
RISE/FALL
4
47pF
PULSE OUTPUT
6
1800pF
5
OUTPUT
GND
11
OVER
CURRENT
1K
V
11
7-14
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