AN8428GAK Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – For 3.5inch HDD Motor Comb IC

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. [phone]
http://www.mec.panasonic.co.jp
New publication, effective from May.8.2000