Sanyo DC-PT100 Service Manual page 20

IC BLOCK DIAGRAM & DESCRIPTION
IC161 BA6849FP(CD-ROM Motor Driver)
DRIVER
A3
2
A2
4 CONTROL
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 Output
3 N.C.
4 A
2 Output
5 N.C.
6 N.C.
7 A
1 Output
8 GND
GND
9 H
1+ Hall signsl input
10 H
1- Hall signal input
11 H
Hall signal input
2+
12 H
Hall signal input
2-
13 H Hall signal input
3+
14 H
3- Hall signal input
IC411 NJM4556AL(Op.Amp)
1
2
3
V(-) 4
TSD
CURRENT
SENSE AMP
GAIN
+ -
TORQUE
SENSE AMP
V
D R Q
CK Q
SHORT BRAKE
Hall bias
Description
D,M,V Type
(Top View)
8 V(+)
A
7
B
6
5
RNF
28
VM1
27
VM2
26
V
CC
VCC
25
FG
24
PS
PS 23
EC
22
+
-
ECR
21
CC
FR
20
SB
18
CNF
17
VH
15
Pin No. Name
15 VH Hall vias
16
N.C.
17 C Phase compensation condenser
NF
18 SB Short brake
19 N.C.
20 FR Rotation detection
21 E Output voltage control referrence
CR
22 E Output voltage control
C
23 PS Power save
24 FG FG signal output
25 V Power source
CC
26 V Motor power source 2
M2
27 V Motor power source 1
M1
28 R Resistance(output current detection) connect
NF
A
1 2 3
- 23 -
N.C.
A
3
N.C.
A
2
N.C.
N.C.
A
1
GND
H
1+
H
1-
H
2+
H
2-
H
3+
H
3
Description
L Type
B
4 5 6 7 8
V(+) V(+)
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