TABLE 1. OUTPUT COMMUTATION SEQUENCE FOR THREE PHASE OPERATION
LS7560
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 0 0
1 0 0
1 1 0
1 1 1
0 1 1
0 0 1
0 1 0
1 0 1
0 0 0
1 0 0
1 1 0
1 1 1
0 1 1
0 0 1
0 1 0
1 0 1
X X X
X X X
X X X
0 0 1
1 0 1
1 0 0
1 1 0
0 1 0
0 1 1
0 0 0
1 1 1
0 0 1
1 0 1
1 0 0
1 1 0
0 1 0
0 1 1
0 0 0
1 1 1
X X X
X X X
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 0
1 0 1
1 0 1
0 1 1
1 1 1
1 1 1
1 0 1
1 0 1
0 1 1
0 1 1
1 1 0
1 1 0
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
0 1 0
0 1 0
1 0 0
1 0 0
0 0 1
0 0 1
0 0 0
0 0 0
1 0 0
0 0 1
0 0 1
0 1 0
0 1 0
1 0 0
0 0 0
0 0 0
1 1 1
0 0 0
0 0 0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
0
0
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 LS7561, 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.
EN
= ENABLE
BRK
= BRAKE
OCS
= OVER
CURRENT
SENSE
TABLE 2. OUTPUT COMMUTATION SEQUENCE FOR FOUR PHASE OPERATION
LS7560
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 1
0 0
0 0
0 0
0 0
1 0
0 1
0 0
0 0
0 0
0 0
0 0
1 0
0 1
1 0
0 1
0 0
0 0
1 1
0 0
0 0
1
1
1
1
1
1
1
1
1
0
0
NOTE 1
: SEQUENCE Input (Pin 1) set at a Logic 1.
NOTE 2
: This Table assumes theTOP DRIVER POLARITY SELECT (Pin 20) = Logic 1. For Pin 20 = Logic 0, invert the
polarity of the top drivers.
NOTE 3
: For the LS7561, 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.
EN
= ENABLE
BRK
= BRAKE
OCS
= OVER
CURRENT
SENSE
7560-102597-8