LB1882 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LB1882 Datasheet PDF : 9 Pages
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LB1882V
Truth Table
Source
Input
Sink
U
V
W
W phase → V phase
1
H
H
L
V phase → W phase
W phase → U phase
2
H
L
L
U phase → W phase
V phase → W phase
3
L
L
H
W phase → V phase
U phase → V phase
4
L
H
L
V phase → U phase
V phase → U phase
5
H
L
H
U phase → V phase
U phase → W phase
6
L
H
H
W phase → U phase
Inputs: “H” means that the input 1 potential for the corresponding phase is at least 0.2 V higher than the input 2 potential.
“L” means that the input 1 potential for the corresponding phase is at least 0.2 V lower than the input 2 potential.
Forward/reverse control: “H”: 1.6 V to VCC2
“L”: 0 V to 0.4 V
Forward/reverse
control
L
H
L
H
L
H
L
H
L
H
L
H
Pin Functions
Pin No. Symbol
Pin voltage
2
VS
≤ VCC1
3
VCC2
≥ VCC1
3 V to 10 V
Unit (resistance: Ω)
Equivalent circuit
Pin function
Power supply that provides the motor voltage and
determines the output amplitude
This voltage must be lower than VCC1.
Power supply that provides the voltage for the
source side pre-drive PNP transistor and the FG
amplifier
4
VCC1
1.8 V to 6 V
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 saturation
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 this RC
constant.
Continued on next page.
No. 4626-4/9
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