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UA8954 - 4 CHANNEL BTL DRIVER

General Description

PIN NO.

Key Features

  • S.
  • Wide dynamic range, (4.0V (typ. ) at PreVcc=12V, PVcc=5V, RL=8Ω).
  • Level shift circuit built in.
  • Thermal-shut-down circuit built in.
  • UTC UA8954 is a 4 channel driver for optical disc motor driver. Dual channel current feedback type drivers are built in, in addition to dual channel motor drivers.
  • Stand-by mode built in.
  • Separating Vcc into Pre+Power of sled motor, Power of loading motor and Power of actuator, can make better power efficiency, by low supply volta.

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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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UNISONIC TECHNOLOGIES CO., LTD UA8954 LINEAR INTEGRATED CIRCUIT 4 CHANNEL BTL DRIVER FOR CD/CD-ROM  FEATURES * Wide dynamic range, (4.0V (typ.) at PreVcc=12V, PVcc=5V, RL=8Ω) * Level shift circuit built in. * Thermal-shut-down circuit built in. * UTC UA8954 is a 4 channel driver for optical disc motor driver. Dual channel current feedback type drivers are built in, in addition to dual channel motor drivers. * Stand-by mode built in. * Separating Vcc into Pre+Power of sled motor, Power of loading motor and Power of actuator, can make better power efficiency, by low supply voltage drive. Current phase lag influenced load inductance is little, because this type is current feedback.