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AN8428GAK

For 3.5inch HDD Motor Comb IC

Panasonic Corporation 

New

Reduce external components and improve reliability

For 3.5inch HDD Motor Comb IC／AN8428GAK

■ Overview

AN8428GAK is motor comb IC for 3.5inch HDD.

By new retract circuit ,reduce external components and shorten the

brake time of the disk to improve reliability of HDD .

Spindle motor sensor less linear drive.

VCM linear drive , PWM-DAC control .

Built-in Retract , 12 V/5 V/3.3 V power monitor, 3.3 V-Regulator.

80-pin TQFP package with exposed heat think .

Unit : mm

■ Features

●By new retract circuit ,reduce external components and shorten

the brake time 1/2 of the disk to improve reliability of HDD .

●Built-in shock sensor amplifier for mechanical shock protection

and 3.3 V regulator for logic semiconductor .

●10 dB acoustic noise reduction by trapezoidal current on spindle

motor drive .

●80- pin TQFP package with the smallest thermal resistance in the

industry .

Meet to increase speed of HDD higher 30 % than previous.

HQFP080-P-1414

■ Principle functions

(1)Spindle motor sensor less linear drive :2.7 A peak current drivers , Ron=1.1 Ω

(2)VCM linear drive : 1.8 A peak current , Ron=1.5 Ω

(3)Retract function exists

(4)Built in 12 V/5 V/3.3 V power monitor

(5)Built in shock sensor amplifier

(6)Built in 3.3 V regulator

■ Applications

3.5 inch HDD

The products and specification are subject to change without any notice. Please ask for the latest Product Standards to guarantee the satisfaction of your product requirements.

1.Kotari Yakemachi, Nagaokakyo, Kyoto, 617-8520 Japan

M00389AE

Tel. (075)951-8151

http://www.mec.panasonic.co.jp

New publication, effective from May.8.2000

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