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參數(shù)資料
| 型號： | LB11997H |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive |
| 中文描述： | 三相無刷電機(jī)驅(qū)動(dòng)器為CD - ROM驅(qū)動(dòng)器主軸 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 74K |
| 代理商： | LB11997H |
LB11997H
No. 6231-6/8
Pin number
Pin name
Pin voltage
Equivalent circuit
Pin function
26
4V to 13.6V
25
4V to 13.6V
22
4V to 6V
14
RS
13
FG
15
11
S/S
8
SIG GND
6
FC
20
21
18
19
16
17
Pin Description
Continued on next page
Source side predrive voltage supply
pin.
Constant current control amplifier
voltage supply pin.
Power supply pin for all circuits
except output transistors, source
predriver, and constant current
control amplifier.
Reverse detector pin.
Forward rotation: High
Reverse rotation: Low
1 Hall element waveform Schmitt
comparator composite output.
U phase Hall element input and
reverse detector U phase Schmitt
comparator input pin.
Logic High indicates U
IN
1 > U
IN
2.
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin.
Logic High indicates V
IN
1 > V
IN
2.
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin.
Logic High indicates W
IN
1 > W
IN
2.
Hall element lower side bias
voltage supply pin.
When this pin is at 0.7V or lower, or
when it is open, all circuits are
inactive. When driving motor, set
this pin to 2V or higher.
Control loop frequency
characteristics compensator pin.
Connecting a capacitor between this
pin and GND prevents closed loop
oscillation in current limiting circuitry.
GND pin for all circuits except
output.
V
CC
2
V
CC
3
V
CC
1
U
IN
1
U
IN
2
V
IN
1
V
IN
2
W
IN
1
W
IN
2
1.2V to
V
CC
1–1V
V
H
0V to V
CC
1
A12508
A12509
A12510
A12511
A12512
14 13
VCC1
100
μ
A
10k
18
20
16
25
μ
A
19
21
17
25
μ
A
25
μ
A
200
200
VCC1
15
VCC1
75
μ
A
30k
2k
11
VCC1
50k
75k
6
VCC1
2k
20k
5k
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