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LB1854 - Three-Phase Brushless Motor Driver IC

Features

  • 120° voltage linear drive technique.
  • The LB1854M soft switching scheme allows smaller external capacitors to be used (e. g. , chip capacitors).
  • Built-in thermal-shutdown function.
  • Built-in overcurrent protection circuit.
  • Built-in FG amplifiers (operational amplifier and Schmitt amplifier).
  • Control start voltage set by an external voltage.
  • The output current feedback level can be changed by changing the control gain to one of two leve.

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Full PDF Text Transcription

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Ordering number : EN4476B Monolithic Digital IC LB1854M Three-Phase Brushless Motor Driver IC Overview The LB1854M is a three-phase brushless motor driver IC and is optimal, in particular, for driving VCR capstan and drum motors. Package Dimensions unit: mm 3073A-MFP30S [LB1854M] Features • 120° voltage linear drive technique • The LB1854M soft switching scheme allows smaller external capacitors to be used (e.g., chip capacitors). • Built-in thermal-shutdown function • Built-in overcurrent protection circuit • Built-in FG amplifiers (operational amplifier and Schmitt amplifier) • Control start voltage set by an external voltage • The output current feedback level can be changed by changing the control gain to one of two levels.
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