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SI9993CS - 12-V VCM/Spindle Motor Driver for Large Capacity HDD

Description

The Si9993CS consists of a 3-phase brushless dc motor (spindle) PWM controller and a linear/PWM transconductance stage suitable for driving a voice coil motor (head actuator).

Features

  • 12-V Motor Supply.
  • Blocking Schottky Diode Replaced by External Synchronous Rectifier.
  • Spindle Motor Driver Features:.
  • External LITTLE FOOT® Drivers for High Current/Power.

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Datasheet Details

Part number SI9993CS
Manufacturer Vishay
File Size 419.96 KB
Description 12-V VCM/Spindle Motor Driver for Large Capacity HDD
Datasheet download datasheet SI9993CS Datasheet

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Full PDF Text Transcription

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Si9993CS Vishay Siliconix Si9993 12-V VCM/Spindle Motor Driver for Large Capacity HDD FEATURES • 12-V Motor Supply • Blocking Schottky Diode Replaced by External Synchronous Rectifier • Spindle Motor Driver Features: – External LITTLE FOOT® Drivers for High Current/Power Application – Constant Off-Time PWM Current Drive Minimizing Power Dissipation – Sensorless Motor Commutation Immune to PWM Noise – Externally Controlled Start-Up/Run Function – Low-Jitter Commutation Output for External Speed Control – Level Shifting Buffer Amplifier for PWM DAC – Adjustable Output Slew Rate Control – Unique Commutation Driver Minimizing Audible Noise – Programmable Phase Advance for High Speed Motor – Speed Triggered Motor Brake for Enhanced Reliability • Voice Coil Motor Driver Features: – External LIT
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