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LS7561 - BRUSHLESS DC MOTOR CONTROLLER

Description

The LS7560/LS7561 are CMOS integrated circuits designed to control three or four phase brushless DC motors in a closed or open loop configuration.

Features

  • Open loop motor control.
  • Tachometer output for closed loop motor control.
  • Error Amplifier and PWM Speed Comparator with full accessibility.
  • High noise immunity Schmitt Triggers on Sensor inputs.
  • 5.5V Reference Supply for external sensors.
  • Cycle-by-cycle current sensing.
  • Static, or current limited dynamic, motor braking.
  • Output enable delay on speed direction reversal.
  • Enable input with fault sensing capability.

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Datasheet preview – LS7561

Datasheet Details

Part number LS7561
Manufacturer LSI Computer Systems
File Size 97.92 KB
Description BRUSHLESS DC MOTOR CONTROLLER
Datasheet download datasheet LS7561 Datasheet
Additional preview pages of the LS7561 datasheet.

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Full PDF Text Transcription

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UL ® LSI/CSI LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 SEQUENCE SELECT FAULT INDICATOR TACHOMETER OUT ERROR AMP (+) LS7560 LS7561 (631) 271-0400 FAX (631) 271-0405 July 2002 FIGURE 1. PIN CONNECTION DIAGRAM TOP VIEW 1 28 27 26 25 24 23 V DD (+V) F/R S3 S2 S1 BRAKE BRAKE SELECT PWM CONTROL TOP DRIVER POLARITY SELECT VR V SS (-V) OUT 1 OUT 2 OUT 3 HALL SENSORS A3800 BRUSHLESS DC MOTOR CONTROLLER FEATURES • Open loop motor control • Tachometer output for closed loop motor control • Error Amplifier and PWM Speed Comparator with full accessibility • High noise immunity Schmitt Triggers on Sensor inputs • 5.
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