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参数资料
| 型号： | LB11698H |
| 元件分类： | 运动控制电子 |
| 英文描述： | VOICE COIL MOTOR CONTROLLER, 1.3 A, PDSO28 |
| 封装： | 0.375 INCH, HSOP-28 |
| 文件页数： | 8/9页 |
| 文件大小： | 120K |
| 代理商： | LB11698H |
LB11698H
No. 8316-8/9
Continued from preceding page.
Pin No.
Pin
voltage
Description
Equivalent Circuit
3
FC
Control loop frequency characteristics
correction
Current control system closed loop oscillations
can be prevented by connecting a capacitor
between this pin and ground.
2
VCREF
0V
to
VCC1-1.5V
Control system reference voltage input
The control system start voltage is determined
by this voltage.
1
VC
0V
to
VCC1
Speed control voltage input
This is a voltage controlled system in which:
The motor turns in the forward direction when
VC > VCREF, and
The motor turns decelerates when VC <
VCREF.
(Since the LB11698H includes a reverse
rotation prevention circuit, the motor will never
turn in the reverse direction.)
22
WOUT
W phase output
FRAME
GND
Output transistor ground
21
VOUT
V phase output
20
UOUT
U phase output
18
RF
High side output transistor collector (common
to all three phases)
Connect a resistor between the RF pin and
VCC3 for current detection.
The LB11698H detects this voltage to operate
the constant current control and current limiter
functions.
27
VLMC
0
to
1.3V
This pin determines the current limiter set
voltage. The current limiter set voltage can be
changed by applying a voltage to this pin.
28
VREF
Reference voltage (1.25V typical) output
Continued on next page.
3
20k
Ω
5k
Ω
2k
Ω
VCC1
28
2
200
Ω
100
μA
VCC1
15
μA
1
25
μA
25
μA
15
μA
51k
Ω
18
3.9
Ω
3.9
Ω
VCC2
21
20
22
FRAME GND
27
6pF
200
Ω
VCC1
6
μA
6
μA
6
μA
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