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LB1927 - 3-phase Brushless Motor Driver

Description

Pin No.

28 1 2 3 5 Pin name OUT1 OUT2 OUT3 GND2 VM Output ground pin.

Output block power supply and output current detection pin.

Features

  • 3-phase bipolar drive (30V, 2.5A).
  • Direct PWM drive technique.
  • Built-in diode for absorbing output lower-side kickback.
  • Speed discriminator and PLL speed control.
  • Speed lock detection output.
  • Built-in forward/reverse switching circuit.
  • Built-in protection circuitry includes current limiter, overheat protection, motor restraint protection, etc. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Max.

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Full PDF Text Transcription

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www.DataSheet.co.kr Ordering number : EN6197C Monolithic Digital IC LB1927 Overview For Office Automation Equipment 3-phase Brushless Motor Driver The LB1927 is a 3-phase brushless motor driver well suited for drum and paper feed motors in laser printers, plain-paper copiers and other office automation equipment. Direct PWM drive allows control with low power losses. Peripheral circuitry including speed control circuit and FG amplifier is integrated, thus allows drive circuit to be constructed with a single chip. Features • 3-phase bipolar drive (30V, 2.
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