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参数资料
| 型号： | LB1882V |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO24 |
| 封装： | SSOP-24 |
| 文件页数： | 5/9页 |
| 文件大小： | 103K |
| 代理商： | LB1882V |
LB1882V
No.4626-5/9
Pin Functions
Pin No.
Symbol
Pin Voltage
Pin Function
Equivalent Circuit
2
VS
≤VCC1
Power supply that provides the motor voltage
and determines the output amplitude.
This voltage must be lower than VCC1.
3
VCC2
≥VCC1
3V to 10V
Power supply that provides the voltage for the
source side pre-drive PNP transistor and the
FG amplifier.
4
VCC1
1.8V to 6V
Power supply that provides all voltages other
than the motor voltage, the source side pre-
drive voltage, and the FG amplifier voltage.
5
TRC
Coil output waveform lower side envelope
waveform detection.
6
FILTER
The coil output saturation prevention function
operates using an RC filter (a resistor between
this pin and the TRC pin and a capacitor
between this pin and ground) connected at this
pin. Motor speed (r.p.m.) control can then be
achieved by adjusting the voltage on pin VS.
The torque ripple correction amount can be
adjusted by adjusting the external RC constant.
7
FC
Frequency characteristics correction.
The capacitor connected between this pin and
ground stops closed-loop oscillation in the
current control system.
8
VH
The Hall elements are connected between this
pin and VCC1. The AGC circuit adjusts the Hall
bias current so that the amplitude of the Hall
element remains fixed.
Since the Hall amplifier common-mode voltage
range is reduced when a low voltage is used for
VCC1, the Hall elements should be connected
in parallel.
Continued on next page.
ILB01041
VCC1
200
Ω
100
μA
23
24
1
5
ILB01042
VCC1
200
Ω
6
50
μA
ILB01043
VCC1
5k
Ω
2.5k
Ω
7
ILB01044
VCC1
2k
Ω
8
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