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LB1921 - Three-Phase Brushless Motor Driver

Key Features

  • The LB1921 is an improved output current version of the LB1824.
  • Three-phase bipolar brushless motor driver.
  • Digital speed control circuit.
  • Thermal shutdown circuit.
  • Start/stop pin.
  • Lock detector output.
  • Crystal oscillator and divider circuits.
  • FG and error amplifiers.
  • Power supply current limiter SANYO: DIP28HS SANYO Electric Co. ,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg. , 1-10, 1 Chome,.

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Full PDF Text Transcription (Reference)

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Ordering number : EN5439 Monolithic Digital IC LB1921 Three-Phase Brushless Motor Driver for OA Applications Overview The LB1921 is a single-chip motor driver circuit that provides direct PWM drive output appropriate for driving the power brushless motors used in office automation equipment. The LB1921 also provides a variety of peripheral functions, including speed control and FG amplifier circuits, on chip. Package Dimensions unit: mm 3147A-DIP28HS [LB1921] Applications • Paper feed and drum motor drivers in FAX and PPC units Functions and Features • The LB1921 is an improved output current version of the LB1824.