參數(shù)資料
型號: BA6665FM
廠商: Rohm CO.,LTD.
英文描述: Motor driver for CD-ROMs
中文描述: 馬達(dá)驅(qū)動的CD - ROM
文件頁數(shù): 8/9頁
文件大?。?/td> 67K
代理商: BA6665FM
BA6665FM
Optical disc ICs
VHYS : Difference Hn
+
from Hn
that
FG1 / FG2 / FG3 voltage change. (n=1, 2, 3)
EC=ECR=1.65V
IVMp : value of 'A'
Output open
(Input condition 1~6)
VFGL : Value of 'FG-OUTPUT-VOLTAGE'
at IFG=3mA (Hn
+
=L)
VFGH : Value of 'FG-OUTPUT-VOLTAGE'
at IFG=
20
μ
A (Hn
+
=H)
EC=5V, ECR=2.5V
12V
E
C
5V
1.65V
R
L
H1
+
H2
+
H3
+
H1
H2
H3
A
VL
I
FG
R
NF
Fig.6
)
Hall hysteresis level
Pre-drive current
FG output voltage H
FG output voltage L
Test Circuit
z
Electrical characteristic curves
7.5
0
1
2
3
4
5
6
7
5
2.5
C
C
SUPPLY VOLTAGE : V
CC
(V)
Fig.7 Circuit Current
0
1
2
3
4
5
5
1
2
3
4
8
9
6
7
C
C
PS VOLTAGE : V
PS
(V)
Fig.8 PS Threshold voltage
0
10
20 30
40 50 60
70 80
90 100
5
1
2
3
4
H
H
HALL BIAS CURRENT : I
VH
(mA)
Fig.9 Hall Bias voltage
50
40
30
20
10 0
10 20
30 40
50
5
1
2
3
4
8
9
6
7
F
F
H3 HYSTERESIS VOLTAGE ; H
3+
H
3
(mV)
Fig.10 H3 Hysteresis Level
50
0
+
50
10
20
T
OFFSET VOLTAGE ; E
C
E
CR
(mV)
E
C
E
CR
(mV)
I
TL
(mA)
Fig.11 Torque Control Offset voltage
0
1
2
3
4
5
500
100
200
300
400
800
900
600
700
T
T
TORQUE VOLTAGE : E
C
(V)
Fig.12 Torque Limit Current
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