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IC201 (BA6849FP) : Spindle Drive IC
Controls the Spindle Motor by receiving MDP signal from DSP (IC501).
Block Diagram
GND
Hall 1
Hall 2
Hall 3
SB
SHORT BRAKE
1
DRIVER
A3
2
A2
CONTROL
4
A1
TL
7
8
HALL AMP
H1+
+
9
_
H1-
+
10
_
H2+
+
11
_
H2-
+
12
_
H3+
+
13
_
H3-
14
TSD
CURRENT
SENSE AMP
GAIN
_
+
TORQUE
SENSE AMP
R
D
Q
CK
Q
Hall Bias
BA6849FP
R
NF
28
VM
27
Vcc2
26
Vcc1
Vcc
25
Vcc1
PG
24
PS
PS
23
EC
22
+
_
ECR
21
Vcc
FR
20
CNF
17
VH
15
FIN
R
NF
V
M
SERVO
SIGNAL
15
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