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IC308 M5218AL
IC309 LA5620
2
5
5k
+
–
27k
OVERCURRENT
LIMITTER
OVERHEAT
PROTECTION
REFERENCE
VOLTAGE
GND
ON/OFF
IN
REFERENCE
VOLTAGE
OUT
3
4
1
IC310 M5293L
4
5
7 86
V–
V+
21 3
IC311 LB1641
109876543
PRE
DRIVER
INPUT LOGIC BLOCK
GND OUT1 P1 VZ IN1 IN2 V
CC
1V
CC
2 P2 OUT2
21
DELAY
CIRCUIT
VREF
DELAY
CIRCUIT
3.3V
PH5
STBY
V
CC
ANA5
SYS3.3
BACK
AC
CD1
P. DOWN
GND
CD2
S. RESET
1
–
+
12
–+
–+
2
3
4
5
67
8
9
10
11
–+–+
–+