■ 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 .

■ 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.