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TA8490F - 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER

Description

This IC is a 3 phase, full wave brushless DC motor driver of the current control / current

drive type.

Chip Package (MCP) structures provides high torque and thermal ef

Features

  • l Multi.
  • chip structure (3 RN6006 chips built.
  • in) l 3.
  • phase, full.
  • wave, semi.
  • linear drive l Current drive / current control l Built.
  • in current limiter : ILIM = 0.6A (typ. ) (at RF = 0.3 Ω) l Built.
  • in reversing brake / short brake functions l FG signal output (using hall element output signal) l Built.
  • in switching regulator controller l Built.
  • in hall bias l Built.
  • in thermal shutdown circuit l Package : MFP.
  • 30 W.

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Full PDF Text Transcription

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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI−CHIP TA8490F TA8490F 3−PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD−ROM DRIVES This 3−phase, full−wave, brushless DC motor driver IC has been developed for use in CD−ROM drive spindle motors. The TA8490F contains in its upper stage a discrete power transistor which, thanks to its low−saturation characteristic, enables the IC to provide superior thermal efficiency. Furthermore, the multi−chip structure of this device facilitates dispersion of the heat generated inside the package, making it possible to suppress heat concentration. FEATURES l Multi−chip structure (3 RN6006 chips built−in) l 3−phase, full−wave, semi−linear drive l Current drive / current control l Built−in current limiter : ILIM = 0.6A (typ.) (at RF = 0.
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