AT78C7005 - ATMEL Corporation

AT78C7005 Spindle/VCM MotorController/Drivers

The AT78C7005 is a CMOS monolithic device that integrates Spindle and VCM controllers as well as power stages into one chip. The device operates from 3.3V or 5V power supply. The AT78C7005 is designed for a small-form-factor hard disk drive application. A precision low-voltage detection circuit monitors the power supply and initiates VCM retract at voltage f.

Features

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• Operates from Single Supply: 3.3V or 5V Small Footprint 64-Pin TQFP Package or Flip Chip Precision Low-voltage Monitor Circuitry for the Power Supply Master Power on Reset Serial Port Interface with Read-back Capability Over-temperature Protection/Warning Shock Sensor Signal Processing On-chip 1.8V, 2.5V and -3V Regulators Low Power Consumption, 9 mA in Normal Run Mode Spindle Driver
  – Commutator is Driven by a FLL for High Immunity to Jitter
  – Programmable 10-bit DAC
  – Adjustable Slew Rate Control
  – External Startup Capability
  – 1.0A Current Capability with Ron = 1Ω
  – Digi.