KA3120 Просмотр технического описания (PDF) - Fairchild Semiconductor

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KA3120

SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER

Fairchild Semiconductor 

HDD PRODUCTS

BLOCK DIAGRAM

Custom

Digital

ASIC

POR

Vreg

Power-on

Reset

FG

MCLK

PWMSF

PWMSP

Interface

Spindle Motor

Driver

VCMOFFSET

Gainsel

PWMH

PWML

Voice Coil Motor

Driver

Retract

Brake

U

V

W

N

VCM+

VCM−

PRELIMINARY

KA3120

3-Phase

BLDC

Motor

Voice

Coil

Motor

MIC-99D001

3

January 1999

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