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TDA5345HT - 5 V spindle & VCM driver combo

Description

The TDA5345HT is a combination of a voice coil motor and a spindle motor driver, designed for 5 V high performance portable small form factor hard disk drives.

Communications with the micro-controller take place through a 16-bit 3-wire uni-directional serial port.

Features

  • Single chip voice coil and spindle motor drivers:.
  • Complementary outputs (Nmos & Pmos): No step-up converter needed.
  • On-chip isolation switch to allow synchronous rectification at power-down.
  • Suited for ramp load operation.
  • Register based architecture: on-chip serial interface.
  • Temperature shut down protection.
  • Linear 3.3 V regulator using one external NPN transistor.
  • Power monitor circuitrymonitoring the 5 V supply.

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Datasheet preview – TDA5345HT

Datasheet Details

Part number TDA5345HT
Manufacturer NXP
File Size 213.53 KB
Description 5 V spindle & VCM driver combo
Datasheet download datasheet TDA5345HT Datasheet
Additional preview pages of the TDA5345HT datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS DATA SHEET TDA5345HT 5 V spindle & VCM driver combo Preliminary specification 1999 June 10 Philips Semiconductors Preliminary specification 5 V spindle & VCM driver combo FEATURES • Single chip voice coil and spindle motor drivers: • Complementary outputs (Nmos & Pmos): No step-up converter needed • On-chip isolation switch to allow synchronous rectification at power-down • Suited for ramp load operation • Register based architecture: on-chip serial interface • Temperature shut down protection • Linear 3.
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