Pin Assignment
LB1991V
Truth Table
Source phase → Sink phase
Hall input
FRC
V→W
H
1
H
H
L
W→V
L
U→W
H
2
H
L
L
W→U
L
U→V
H
3
H
L
H
V→U
L
W→V
H
4
L
L
H
V→W
L
W→U
H
5
L
H
H
U→W
L
V→U
H
6
L
H
L
U→V
L
Note: The “H” entries in the FRC column indicate a voltage of 2.50 V or higher, and the “L” entries indicate a voltage of 0.4 V or lower. (When VCC1 is 3 V.)
At the Hall inputs, for each phase a high-level input is the state where the (+) input is 0.02 V or higher than the (–) input. Similarly, a low-level input is
the state where the (+) input is 0.02 V or lower than the (–) input.
No. 5792-3/7