SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER

The KA3120 is an ASIC combination chip, which was designed for the HDD, includes the following functions: spindle motor drive, voice coil motor drive, retract and Power Management To drive and control the spindle, the digital ASIC provides the appropriate control signals (Start up, commutation, speed control) to the KA3120. The spindle motor condition is monitored by the FG output and the motor speed control is accomplished via the PWMSP input. The ASIC controls the voice coil motor current via PWMH and PWML inputs and the Power Management circuit always monitors the power supply voltages. By Fairchild Semiconductor
KA3120 's PackagesKA3120 's pdf datasheet



KA3120 Pinout, Pinouts
KA3120 pinout,Pin out
This is one package pinout of KA3120,If you need more pinouts please download KA3120's pdf datasheet.

KA3120 Application circuits
KA3120 circuits
This is one application circuit of KA3120,If you need more circuits,please download KA3120's pdf datasheet.


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KA3120 Application Notes KA3120 RoHS KA3120 Circuits KA3120 footprint
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