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IC601 (BD7905BFS) : CD-ROM/DVD-ROM 6CH ACTUATOR DRIVER
Block Diagram
65
1
14
15
16
17
18
19
20
21
22
23
24
25
26
27
2
3
10
9
12
13
11
6
4
5
7
8
54
41
40
39
38
37
36
35
34
33
32
31
30
29
28
53
52
45
46
43
42
44
49
51
50
48
47
PRE
LOGIC
FF
FF
LIMIT
Current
LIMIT
HALL
BIAS
FG
REVERSE
DETECT
OSC
Polarity
COMP
LIMIT
OSC
PRE
LOGIC
STBY/
BRAKE
CONTROL
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
TSD
PRE LOGIC
+
-
+
-
67k
67k
188k
47k
112.5k
75k
47k
47k
+
-
+
-
+
-
+
-
117.5k
117.5k
47k
47k
FG
DV
CC
HU+
HU-
HV+
HV-
HW+
HW-
HB
PGND1
U
SPV
M
1
V
GND
GND
GND
GND
GND
PGND2
W
SPV
M
2
SPRNF
FG
CTL1
CTL2
SPIN
DGND
LDIN
V
C
FCIN
TKIN
V
CC
LDO+
LDO-
TK
O
+
TK
O
-
FCO+
FCO-
AV
M
GND
GND
GND
GND
GND
A
GND
SLO1+
SLO1-
SLO2+
SLO2-
SPCNF
SLRNF2
SLRNF1
SL
V
DD
SLIN2
SLIN1
No Pin name Function
1
HU+
HU+ signal input
2
HU-
HU- signal input
3
HV+
HV+ signal input
4
HV-
HV- signal input
5
HW+
HW+ signal input
6
HW-
HW- signal input
7
HB
Bias for hall sensor
8
PGND1
Spindle power GND1
9
U
Spindle driver output U
10
SPV
M
1
Spindle power supply input
11
V
Spindle driver output V
12
GND
GND
13
GND
GND
14
GND
GND
15
GND
GND
16
GND
GND
17
PGND2
Spindle power GND2
18
W
Spindle driver output W
19
SPV
M
2
Spindle power supply input
20
SPRNF
Spindle driver current power detection input
21
FG
FG signal output
22
CTL1
Driver logic control input1
23
CTL2
Driver logic control input2
24
SPIN
Spindle driver control input
25
SPIN
PWM GND
26
LDIN
Loading input
27
Vc
Reference voltage control input
No Pin name Function
28
SLIN1
Motor driver input1
29
SLIN2
Motor driver input2
30
SLV
DD
Motor power supply
31
SLRNF1 Motor driver current power detection input1
32
SLRNF2 Motor driver current power detection input1
33
SPCNF
Spindle driver filter port
34
SLO2-
Motor driver inverted output2
35
SLO2+
Motor driver non-inverted output1
36
SLO1-
Motor driver inverted output1
37
SLO1+
Motor driver non-inverted output1
38
AGND
BLT Motor driver power -GND
39
GND
GND
40
GND
GND
41
GND
GND
42
GND
GND
43
GND
GND
44
AV
M
Actuator driver power supply
45
FCO-
Focus driver inverted output
46
FCO+
Focus driver non-inverted output
47
TKO-
Tracking driver inverted output
48
TKO+
Tracking driver non-inverted output
49
LDO-
Loading driver inverted output
50
LDO+
Loading driver non-inverted output
51
Vcc
BTL free Loading driver power supply
52
TKIN
Tracking driver input
53
FCIN
Focus driver input
54
DVcc
PWM power supply control
Pin Description