BA6665FM 데이터 시트보기 (PDF) - ROHM Semiconductor
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BA6665FM Datasheet PDF : 9 Pages
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Optical disc ICs
BA6665FM
12V A
5V
EC
RNF
VL
IFG
1.65V
RL
H1+ H2+ H3+
H1− H2− H3−
) Hall hysteresis level
Fig.6
Pre-drive current
FG output voltage H
Test Circuit
FG output voltage L
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)
EC=5V, ECR=2.5V
VFGL : Value of 'FG-OUTPUT-VOLTAGE'
at IFG=3mA (Hn+=L)
VFGH : Value of 'FG-OUTPUT-VOLTAGE'
at IFG=−20µA (Hn+=H)
zElectrical characteristic curves
7.5
5
2.5
01 234 567
SUPPLY VOLTAGE : VCC (V)
Fig.7 Circuit Current
9
8
7
6
5
4
3
2
1
−50 −40 −30 −20 −10 0 10 20 30 40 50
H3 HYSTERESIS VOLTAGE ; H3+−H3− (mV)
Fig.10 H3 Hysteresis Level
9
8
7
6
5
4
3
2
1
0
1
2
3
4
5
PS VOLTAGE : VPS (V)
Fig.8 PS Threshold voltage
5
4
3
2
1
0 10 20 30 40 50 60 70 80 90 100
HALL BIAS CURRENT : IVH (mA)
Fig.9 Hall Bias voltage
ITL (mA)
900
20
800
700
600
500
10
400
300
200
100
−50
0
+50
EC−ECR (mV)
0
1
2
3
4
5
OFFSET VOLTAGE ; EC−ECR (mV)
TORQUE VOLTAGE : EC (V)
Fig.11 Torque Control Offset voltage
Fig.12 Torque Limit Current
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