TDA5247 Datasheet – TDA5247HT for Quantum HDD – Philips

Part Number : TDA5247, TDA5247HT

Function : Chip for Quantum HDD Logic Board

Package : QFP 80 Pin Type

Manufacturers : Philips

Image :

TDA5247 datasheet pinout

Chips used to drive spindle motor (3 phase brushless DC) are Philips TDA5247HT or Panasonic AN8428GAK.

TDA5247HT, Philips, spindle motor + VCM controller
possible replacement for TDA5247HT = Panasonic AN8428NGAR

Reference Site :

http://www.users.on.net/~fzabkar/HDD/HDD_Motor_Control.html

TDA5247 Datasheet

Reference Datasheet : AN8428GAK, Driver for 3.5inch HDD motor

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.

TDA5247 Datasheet AN8428GAK datasheet

 

 

EGP1000W Manual – Sine Wave Inverter Power Board – EG

Part Number : EGP1000W

Function : Pure Sine Wave Inverter Power Board

Package : Power Board

Manufactures : EG Micro ( www.EGmicro.com )

Image

egp1000w-manual-inverter-power-board
Description

EGP1000W inverter power board is a dedicated EG8010 SPWM chip and EGS001 sine wave inverter driver board dedicated power floor, for 3KVA following inverter unit. EGP1000W inverter power board has two modes: the former by the high-frequency transformer DC-DC boost after the input high-voltage direct current to the board power supply interface direct inverter output mode (high-frequency mode); direct input low-voltage direct current to the board On the power supply interface Inverter output Low-voltage AC voltage after the transformer step-up output high-voltage AC (frequency mode). Users can choose according to demand mode and power devices, and through the regulator potentiometer to adjust the AC output voltage.

 

EGP1000W Schematic

egp1000w-schematic

 

Features

EGP1000W inverter power board There are two modes: the former by the high-frequency transformer DC-DC boost after the input high-voltage direct current to the board power supply interface direct inverter output mode (high-frequency mode); direct input low-voltage direct current to the board On the power supply interface Inverter output Low-voltage AC voltage after the transformer step-up output high-voltage AC (frequency mode). Two modes of operation different power devices, users can choose according to system requirements. Work in the high-frequency mode, the DC voltage is high, the same power under the current small; frequency mode, the DC voltage is low, the same power under the current.

 

EGP1000W Manual ( Datasheet )