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TDA5142T - Brushless DC motor drive circuit

General Description

APPLICATIONS High-power applications e.g.: high-end hard disk drives

automotive.

The TDA5142T is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode.

Key Features

  • Full-wave commutation without position sensors.
  • Built-in start-up circuitry.
  • Six outputs that can drive three external transistor pairs:.
  • output current 0.2 A (typ. ).
  • low saturation voltage.
  • built-in current limiter.
  • Thermal protection.
  • Tacho output without extra sensor.
  • Transconductance amplifier for an external control transistor.
  • Motor brake facility. QUICK.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET TDA5142T Brushless DC motor drive circuit Product specification Supersedes data of March 1992 File under Integrated Circuits, IC11 June 1994 Philips Semiconductors Philips Semiconductors Product specification Brushless DC motor drive circuit FEATURES • Full-wave commutation without position sensors • Built-in start-up circuitry • Six outputs that can drive three external transistor pairs: – output current 0.2 A (typ.) – low saturation voltage – built-in current limiter • Thermal protection • Tacho output without extra sensor • Transconductance amplifier for an external control transistor • Motor brake facility. QUICK REFERENCE DATA Measured over full voltage and temperature range. SYMBOL VP VVMOT VO ILIM Note 1. An unstabilized supply can be used.