lb1955 Sanyo Semiconductor Corporation, lb1955 Datasheet - Page 3

• Manufacturer Part Number: lb1955
• Description: Three-phase Brushless Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Pin Assignment
Note: The Hall input "H" and "L" values are defined as follows: "H" means that for that phase the (+) input is higher than the (-) input, and "L" means that for
Timing Charts
Note: The Hall inputs are defined as follows: U = U
Truth table
that phase the (+) input is lower than the (-) input. However, note that an input potential difference corresponding to the Hall to output gain is required.
Inputs to the Hall input pins must be applied in the phase order shown in the timing chart.
1
2
3
4
5
6
Hall inputs
Synthesized
waveform
W phase
W phase
V phase
U phase
V phase
U phase
Source
W phase
W phase
U phase
V phase
V phase
U phase
sink
IN
1 – U
IN
U
H
H
H
L
L
L
2, V = V
Hall input logic
IN
1 – V
H
H
H
V
L
L
L
LB1955
IN
2, and W = W
W
H
H
H
L
L
L
IN
1 – W
IN
2.
No. 5452-3/7