47
IC510 (BA6664FM) : Spindle Motor Drive IC
It drives the spindle motor receiving the spindle control signal at IC301 (MICOM) and IC201 (OTI-9790).
2
4
7
8
9
10
28
27
26
25
24
23
22
21
20
19
18
17
16
15
11
12
13
14
TL
TSD
GAIN
CONTROL
Hall 1
Hall 2
Hall 3
Hall Bias
BRAKE MODE
HALL AMP
SHORT BRAKE
P S
A3
A2
A1
H1+
H1-
H2 +
H2 -
H3 +
H3 -
FIN
GND
R
NF
R
NF
VM
GSW
VCC
FG
V
M
PS
EC
ECR
FR
FG2
SB
CNF
BR
VH
+
-
+
-
+
-
+
+
-
-
+
-
+
-
TORQUE
SENSE AMP
SERVO
SIGNAL
CURRENT
SENSE AMP
VCC
VCC
Vcc
VCC
D
CK Q
Q
R
DRIVER
GAIN
SWITCH
+
-
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
FIN
Description
N.C.
Output3 for motor
N.C.
Output2 for motor
N.C.
N.C.
Output1 for motor
GND
Positive input for hall input Amp1.
Negative input for hall input Amp1.
Positive input for hall input Amp2.
Negative input for hall input Amp2.
Positive input for hall input Amp3.
Negative input for hall input Amp3.
Hall bias terminal
Brake Mode terminal
Capacitor connection pin for phase compensation
Short brake terminal
3 Phase synthesized FG signal output terminal
Rotation detect signal output terminal
Torque control standard voltage input terminal
Torque control voltage input terminal
START/STOP Switch
FG signal output terminal
Power supply for signal division
Gain Switch
Power supply for driver division
Resistance connection pin for output current sense
GND
Pin Name
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
-
V
H
BR
C
NF
SB
FG
2
FR
E
CR
E
C
PS
FG
V
CC
GSN
V
M1
R
NF
FIN
Block Diagram
•
Pin Description