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参数资料
| 型号： | LB1896 |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.2 A, PQFP34 |
| 封装： | HQFP-34 |
| 文件页数： | 5/8页 |
| 文件大小： | 111K |
| 代理商： | LB1896 |
Continued from preceding page.
Pin No.
Pin Name
Pin Voltage
Equivalent Circuit Diagram
Pin Function
13
12
VC
VCref
VCC2/2
±1.0
v VC is the speed control pin.
Forward when VC > VCref.
Reverse when VC < VCref.
VC is used to control the output voltage.
v VCref determines the motor control stop
voltage.
VCC2/2 in normal use.
11
10
GC1
GC2
0toVCC2
v Input/output gain switching pins.
v GC1 is for first-stage amplifier Z1/Z2
switching.
When GC1 is LOW, Z1 is selected;
when HIGH, Z2 is selected. GC2 is for
next-stage amplifier switching.
9
8
CTRL
φ
CTRL1
0toVCC2
v Operation mode switching pins.
v Refer to the Mode Switching Truth Table
for selection of control, acceleration, or
deceleration.
7
NS+
0 to
VCC2–1V
v Input pin at noncontrol mode.
v The input-output gain is 14 dB.
(GC2: LOW)
v Motor stops when VNS =0V.
6
S/S
0toVCC2
v When the S/S pin is HIGH, START;
when LOW, STOP.
v The threshold is VCC2/2.
Continued on next page.
LB1896
No.5225-5/8
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