TA8493AF Toshiba Semiconductor, TA8493AF Datasheet - Page 22

• Manufacturer Part Number: TA8493AF
• Description: (TA8493xx) 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD-ROM DRIVES
• Manufacturer: Toshiba Semiconductor

7. V
8. V
·
·
·
OFG (H)
HYS
V
V
V
OFG (H)
OFG (L)
HYS
: Switch the V
, V
Measure the V
L
L
30
L
b
30
L
b
1
1
: V
b
b
: V
(G) L
(G) L
OFG (L)
Hb
Hb
V
V
29
29
a
2
a
2
M1
+
M1
+
(G) L
(G) L
= 2.47 V, I
= 2.53 V, I
28
28
Hb
L
L
3
3
a
a
c
c
Hb
+
L
L
from high (H) to low (L) and from (L) to (H).
+
V
V
c
c
27
27
4
4
at the point when FGO function changes.
M2
M2
FGO
(G) MS
(G) MS
FGO
5 V
5 V
SB
SB
= 10 mA (sink)
26
26
= 10 mA (source)
5
5
R
R
R
R
25
25
6
6
F2
F1
F2
F1
GND1 OSC
GND2
GND1 OSC
GND2
24
24
TA8493F/AF/BF
TA8493F/AF/BF
7
7
22
C
C
23
23
8
8
RF
RF
N.C. FGO BRK
N.C. FGO BRK
V
V
22
22
9
9
ref
ref
V
V
21
10
21
10
V
C
C
V
V
5 V
20
11
5 V
20
11
CC
CC
2.5 V V
2.5 V V
H
H
19
C
12
19
C
12
b
b
d
d
-
-
H
H
HB
HB
18
13
18
13
Hb
Hb
b
b
+
+
+
+
TA8493F/AF/BF
H
H
H
H
17
14
17
14
a
a
c
c
-
-
-
-
H
H
H
H
16
15
16
15
2002-01-31
c
a
c
a
+
+
+
+