AN8428GAK

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 Ja...