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TDA5149G Datasheet 12 V Voice Coil Motor VCM driver and spindle motor pre-driver combination chip

Manufacturer: NXP Semiconductors

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General Description

The TDA5149G is a combination of a voice coil motor driver and a spindle motor pre-driver, capable of operating 12 V high-performance hard disk drives.

The device integrates a spindle pre-driver that drives three external N-channel power MOSFETs in order to drive a three-phase brushless, sensorless DC motor in full wave mode.

In the normal mode, commutations are generated from the internal Back EMF (BEMF) sensing circuitry.

Overview

INTEGRATED CIRCUITS DATA SHEET TDA5149G 12 V Voice Coil Motor (VCM) driver and spindle motor pre-driver combination chip Product specification File under Integrated Circuits, IC11 1996 May 06 Philips Semiconductors.

Key Features

  • General features.
  • Single-chip voice coil motor driver and spindle motor pre-driver.
  • Internal voltage reference generator.
  • Programming of timing parameters via the serial bus.
  • Control of sleep, brake and disable modes for both the VCM and spindle via the serial bus.
  • Temperature monitor circuit.
  • General purpose uncommitted operational amplifier. Voice coil motor driver.
  • On-board full-bridge power DMOS driver with low RDSon.
  • Cl.

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