PROTECTION
4
ON/OFF
DRIVE
5
3
1
2
REG.
AMP
VREF
VIN
VOUT
ON: H
GND
SENSE
H
VIN
VOUT
NR
GND
:ON
4
2
3
1
5
IC
NC
NC
NC
CONT
VIN
VOUT
GND
CN
SHUTDOWN
THERMAL
LIMITTER
CURRENT
DRIVER
BIAS
REFERENCE
8
7
6
5
4
3
2
1
H
GND
SENSE
VOUT
ON
VIN
1
2
3
4
5
IC
H
VIN
VOUT
NR
GND
:ON
4
2
3
1
5
IC
CC
VREF/SS
V5/PWON
VIN
FB
GND
EXT
CS
COMP
CNT.
-
+
SHIFT
LEVEL
UVLOcomp
VREF
0.8V
V5
+
-
RESET
CONTROL LOGIC
+
-
+
-
8
7
6
5
4
3
2
1
3
ON/OFF
5
1
GND
2
IC
4
VIN
VOUT
ADJ
GND
VCC
OUT
4
2
GND
3
5
Vref
+
-
IC1506
DR +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC1510
TU +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC7401
PS +11.6V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC1501
RESET
IC-DETAIL BLOCK DIAGRAM
IC1521
ANA +3.3V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC7402,IC7403
B5V SWITCHING REGULATOR,
PS +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC1520
ANA +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC1508
SWITCHING IC
IC-DETAIL BLOCK DIAGRAM
IC1501 Detail Block Diagram
IC1506 Detail Block Diagram
IC1508 Detail Block Diagram
IC1510 Detail Block Diagram
IC1520 Detail Block Diagram
IC1521 Detail Block Diagram
IC7401 Detail Block Diagram
IC7402 Detail Block Diagram
IC7403 Detail Block Diagram
DMR-EX77EG/EC/EC1/EB,EX87EG/EC/EC1/EB
IC-Detail Block Diagram
DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB
57