Sanyo DCS-AVD8501 Service Manual page 62

IC BLOCK DIAGRAM & DESCRIPTION
IC601 BA5937AFP (Power Driver)
28 27 36 25 24 23 22
x2 x2
VCC(CH1,4)
D D
-
+
THERMAL
LEVEL
SHUT
SHIFT
DOWN
LEVEL
SHIFT
+
-
MUTE
CH1,4
D D
x2 x2
1 2 3 4 5 6
IC602 BA6849FP (CD-ROM Motor Driver)
A3
2
A2
4
A1 TL
7
GND
8
HALL AMP
+
H1+
9
-
+
H1-
10
-
+
H2+
11
-
+
H2-
12
-
H3+
+
13
-
H3-
14
Pin No. Name
1 N.C.
2 A
3
3 N.C.
4 A
2
5 N.C.
6 N.C.
7 A
1
GND
8
9 H
1+
10 H
1-
11 H
2+
12 H
2-
13 H
3+
14 H
3-
IC900 BA033FP (Regulater)
1 2 3
GND
V OUT
CC
21 20 19 18
x2 x2
VCC(CH3)
D
+ -
-
+
LEVEL
SHIFT
VCC(CH2)
x2
7 8 9 10 11
DRIVER
TSD
CURRENT
SENSE AMP
GAIN
CONTROL
+ -
PS
TORQUE
SENSE AMP
+
-
V
CC
D R Q
Q
CK
SHORT BRAKE
Hall bias
Description
Output
Output
Output
GND
Hall signsl input
Hall signal input
Hall signal input
Hall signal input
Hall signal input
Hall signal input
REFFERENCE
Vcc 1
VOLTAGE
GND 2
17 16 15 PIN NO. NAME
1 OUT-1 DRIVER CH1 (-)
D
2 OUT-2 DRIVER CH1 (+)
3 IN 1-1 DRIVER CH1
FWD REV
LOGIC
4 IN 1-2 DRIVER CH1 GAIN
5 NC NOT USED
6 NC NOT USED
7 MUTE CH1,4 MUTE CONTROL
VOLTAGE
8 GND GND
CTRL
9 NC NOT USED
10 VCC2 VCC(CH2)
11 NC NOT USED
12 OUT2-2 DRIVER CH2 LOARDING (+)
D D
x2
13 OUT2-1 DRIVER CH2 LOARDING (-)
14 GND SUB STRAIGHT GND
12 13 14
RNF
28
N.C.
A
3
VM1
27
N.C.
VM2
26
A
2
V
CC
N.C.
VCC
25
N.C.
FG
24
A
1
PS
23
EC
22
ECR
21
GND
H
1+
FR
20
H
1-
H
2+
SB
18
H
2-
CNF
17 H
3+
H
3
VH
15
Pin No. Name
15 VH
16
N.C.
17 C
NF
18 SB
19 N.C.
20 FR
21 E
CR
E
22
C
23 PS
24 FG
25 V
CC
26 V
M2
27 V
M1
28 R
NF
3 OUT
- 77 -
DESCRIPTION PIN NO. NAME
15 REV
16 FWD
17 OUT3-1
18 OUT3-2
19 LD IN
20 IN 3
21 VCC3
22 VCC1
23 Vref IN
24 IN 4-2
25 IN 4-1
26 OUT4-2
27 OUT4-1
28 GND
Description
Hall vias
Phase compensation condenser
Short brake
Rotation detection
Output voltage control referrence
Output voltage control
Power save
FG signal output
Power source
Motor power source 2
Motor power source 1
Resistance(output current detection) connect
DESCRIPTION
LOARDING REV
LOARDING FWD
DRIVER CH3 (-)
DRIVER CH3 (+)
LOARDING
DRIVER CH3
VCC(CH3)
VCC(CH1,4)
BIAS
DRIVER CH4 GAIN
DRIVE CH4
DRIVER CH4 (+)
DRIVER CH4 (-)
SUB STRAIGHT GND
R
XF
V 1
M
V 2
M
V
CC
FG
PS
E
C
E
CR
FR
N.C.
SB
C
NF
N.C.
V
H