Spindle/vcm Motorcontroller/drivers - Atmel Corporation

The AT78C7005 is a CMOS monolithic device that integrates Spindle and VCM con- trollers as well as power stages into one chip. The device operates from 3.3V or 5V power supply. The AT78C7005 is designed for a small-form-factor hard disk drive application. A precision low-voltage detection circuit monitors the power supply and initiates VCM retract at voltage fault condition. A 3-line serial port Interface with read back capability provides Interface to the Microprocessor The Spindle driver features a transconductance Amplifier a Current Sense Amplifier power output drivers, Sequencer internal delay/masking Logic Spindle brake circuit, FLL, and charge-pump for locking the spindle to the programmed rotational speed. The VCM driver features a transconductance Amplifier differential input Current Sense Amplifier ramp load/unload capability, and power output Amplifier By ATMEL Corporation
AT78C7005 's PackagesAT78C7005 's pdf datasheet



AT78C7005 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
AT78C7005 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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