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參數(shù)資料
| 型號： | LB11997H |
| 元件分類： | 運動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.3 A, PDSO28 |
| 封裝： | HSOP-28 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 176K |
| 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
6FC
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 UIN1 > UIN2.
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin.
Logic High indicates VIN1 > VIN2.
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin.
Logic High indicates WIN1 > WIN2.
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.
VCC2
VCC3
VCC1
UIN1
UIN2
VIN1
VIN2
WIN1
WIN2
1.2V to
VCC1–1V
VH
0V to VCC1
A12508
A12509
A12510
A12511
A12512
14 13
VCC1
100A
10k
18
20
16
25A
19
21
17
25A
200
VCC1
15
VCC1
75A
30k
2k
11
VCC1
50k
75k
6
VCC1
2k
20k
5k
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