TABLE 1. OUTPUT COMMUTATION SEQUENCE FOR THREE-PHASE OPERATION
LS7560N
SENSOR ELECTRICAL
SEPARATION
TOP
BOTTOM
60°
120°
DRIVERS DRIVERS
S1, S2, S3 S1, S2, S3
F/R EN
BRK
OCS
O1, O2, O3 O4, O5, O6 FAULT
0
1
1
1
0
0
0
1
0
1
1
1
0
0
0
1
x
x
x
0
0
1
1
1
0
1
0
0
0
1
1
1
0
1
0
x
x
x
0
0
0
1
1
1
0
1
0
0
0
1
1
1
0
1
x
x
x
0
1
1
1
0
0
0
1
0
1
1
1
0
0
0
1
x
x
x
0
0
0
1
1
1
0
1
0
0
0
1
1
1
0
1
x
x
x
1
1
0
0
0
1
0
1
1
1
0
0
0
1
0
1
x
x
x
1
1
1
1
1
1
x
x
0
0
0
0
0
0
x
x
x
x
x
1
1
1
1
1
1
x
x
1
1
1
1
1
1
x
x
x
x
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
x
x
0
0
0
0
0
0
x
x
x
1
x
0
1
1
1
1
0
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
0
0
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
0
0
1
1
0
0
0
0
1
0
0
0
0
1
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
0
1
1
0
0
0
1
1
0
0
0
0
0
1
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
0
0
EN
= ENABLE
BRK
= BRAKE
OCS
= OVER
CURRENT
SENSE
NOTE 1:
This Table assumes the Top Driver Polarity Select (Pin 20) = Logic 0.
For Pin 20 = Logic 1, invert the polarity of the top drivers.
NOTE 2:
For the LS7561N, the Overcurrent Sense = Logic 1 only forces the bottom drivers to a Logic 0.
It has no effect on the top driver outputs which are determined by the other inputs as shown in the table.
TABLE 2. OUTPUT COMMUTATION SEQUENCE FOR FOUR-PHASE OPERATION
LS7560N
SENSOR ELECTRICAL
SEPARATION = 90°
TOP
BOTTOM
DRIVERS
DRIVERS
S1
S2, S3 F/R
EN
BRK
OCS
O1, O3
O4, O6
FAULT
0
1
1
0
0
1
1
0
x
x
x
0
0
1
1
0
0
1
1
x
x
x
1
1
1
1
0
0
0
0
x
x
x
1
1
1
1
1
1
1
1
x
x
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
x
1
x
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
1
0
1
0
0
1
0
0
1
1
1
1
1
1
1
1
1
0
0
EN
= ENABLE
BRK
= BRAKE
OCS
= OVER
CURRENT
SENSE
NOTE 1:
Sequence Input (Pin 1) set at a Logic 1.
NOTE 2:
This Table assumes the Top Driver Polarity Select (Pin 20) = Logic 1.
For Pin 20 = Logic 0, invert the polarity of the top drivers.
NOTE 3:
For the LS7561N, the Overcurrent Sense = Logic 1 only forces the bottom drivers to a Logic 0.
It has no effect on the Top Driver Outputs which are determined by the other inputs as shown on the table.
7560N-030906-8
LSI [ LSI COMPUTER SYSTEMS ]
