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LB1872 - Polygon Mirror Scanner Driver

Features

  • Integrates the circuits (speed control and driver circuits) required for laser printer polygon mirror motor drive in a single chip.
  • Uses a current linear drive technique for minimal motor noise. Only a small capacitors are required for output oscillation prevention.
  • PLL speed control adopted for high-precision rotation with excellent jitter characteristics.
  • Phase lock detection output with a chattering prevention function.
  • Four rotation rates can.

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Full PDF Text Transcription

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Ordering number : EN5625A Monolithic Digital IC LB1872 Polygon Mirror Scanner Driver IC Overview The LB1872 is a 3-phase brushless motor driver IC developed for driving the polygon mirror motor used in laser printers and similar products. braking (free running when stopped) • Built-in FG and error amplifiers • Full complement of protection circuits, including thermal protection, low voltage protection, and current limiter circuits, provided on chip. Functions and Features • Integrates the circuits (speed control and driver circuits) required for laser printer polygon mirror motor drive in a single chip. • Uses a current linear drive technique for minimal motor noise. Only a small capacitors are required for output oscillation prevention.
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