-26-
N4JKT
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
GND
6
2.1 V
1.6 V
5
ZCD
+
-
DISABLE
STARTER
Starter
stop
DRIVER
7
GD
R
Q
S
ZERO CURRENT
DETECTOR
Vcc
INV
COMP
MULT
CS
R2
25 V
8
1
2.5V
2
3
4
40K
5pF
Vcc
R1
INTERNAL
SUPPLY 7V
UVLO
V
REF2
+
-
VOLTAGE
REGULATOR
OVERVOLTAGE
DETECTION
+
-
MULTIPLIER AND
THD OPTIMIZER
+
-
15 V
Summary of Contents for CE42LM4WPTC
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