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LS7561N Datasheet(PDF) 8 Page - LSI Computer Systems |
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LS7561N Datasheet(HTML) 8 Page - LSI Computer Systems |
8 / 8 page 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 0 0 0 0 1 1 1 0 0 0 1 1 0 1 0 1 1 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 1 1 1 0 1 0 0 1 1 0 0 1 1 0 1 0 0 1 1 1 1 1 1 0 1 1 0 0 1 0 1 1 0 0 1 0 1 1 0 1 0 1 1 0 0 1 0 1 0 0 1 1 0 0 1 0 1 1 1 1 0 0 0 1 1 0 0 1 1 0 1 0 0 0 0 x x 0 x 1 1 1 0 0 0 0 1 0 1 1 1 1 x x 0 x 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 0 1 0 1 0 0 1 1 1 1 0 1 0 0 0 1 0 0 0 1 1 0 0 1 1 1 1 1 1 1 0 0 1 0 0 0 1 1 0 1 0 1 0 1 1 0 1 0 0 1 0 0 1 1 0 0 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 1 0 0 1 0 1 0 0 0 0 x x 0 x 1 1 1 0 0 0 0 1 0 1 1 1 1 x x 0 x 1 1 1 0 0 0 0 x x x x x x x x 1 x 1 1 1 1 1 1 1 x x x x x x x x 0 1 1 1 1 0 0 0 0 x x x x x x x 0 0 x 1 1 1 0 0 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 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. EN = ENABLE BRK = BRAKE OCS = OVER CURRENT SENSE 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 0 1 1 0 0 1 0 0 0 1 1 0 1 1 0 0 0 1 0 0 1 1 1 1 1 0 0 0 0 1 0 1 0 1 1 1 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0 1 0 1 1 0 0 1 0 0 0 0 0 1 1 1 1 0 1 0 0 1 0 0 0 1 0 1 0 1 0 0 0 1 0 0 1 x x x x 1 x 0 0 1 1 1 x x x x 0 1 0 0 0 0 0 x x x 0 0 x 0 0 0 0 0 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. EN = ENABLE BRK = BRAKE OCS = OVER CURRENT SENSE 7560N-030906-8 |
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