HA13571FR Datasheet, PDF (1/22 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver for HDD

HA13571FR
Combo (Spindle & VCM) Driver for HDD
ADE-207-269 (Z)
1st Edition
February 1999
Description
The HA13571FR is combination of Spindle and VCM Driver designed for HDD and have following
functions and features.
Functions
• 2.2 A/phase spindle motor driver
• 1.5 A VCM driver
• Soft switching control circuit
• B-EMF detection circuit
• Selectable PWM or linear drive (spindle motor driver)
• Power down brake & retract
• PWM DAC & filter (VCM driver)
• 5 V, 12 V power supply monitor
• Watch dog timer
Features
• Low thermal resistance package (θj-a ≤ 25°C/W)
• Full programable commutation structure
• Low output saturation voltage
 Spindle motor driver
 VCM driver
• Built-in PWM DAC with filter
• Low noise drive by soft switching