-26-
N4JJ
IC BLOCK DIAGRAMS
IC1801 / IC1802 PCA9534PW
POWER-ON
RESET
INPUT
FILTER
I
2
C/SMBUS
CONTROL
INPUT/
OUTPUT
PORTS
WRITE pulse
READ pulse
A0
A1
A2
SCL
SDA
VDD
Vss
8-BIT
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
SU01783
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
Vcc
INT
LP
FILTER
PCA9534
IC601 L6562D
+
-
MULTIPLIER AND
V
REF2
OVERVOLTAGE
DETECTION
VOLTAGE
REGULATOR
UVLO
INTERNAL
SUPPLY 7V
+
-
2.5V
R1
R2
R
S
Q
+
-
DRIVER
STARTER
+
-
ZERO CURRENT
DISABLE
2.1 V
1.6 V
Vcc
8
1
2
3
4
ZCD
Vcc
INV
COMP
MULT
CS
GD
7
5
GND
6
25 V
40K
5pF
15 V
Starter
stop
DETECTOR
THD OPTIMIZER
Содержание CE42LM4R-E
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