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  HDD Motor Control Chip has flexible, digital architecture

Product News Network, May 30, 2006

Integrating all circuits required to drive spindle motor and voice-coil of drives used in PCs, L7207 suits 5 V mobile drives and 12 V desktop computer drives. Digital circuits are combined with power FETs and bipolar analog circuits on same piece of silicon.

Voice-coil section provides class AB output stage with zero dead band and minimal crossover distortion. Register-controlled product connects to host system through serial bus running at up to 40 MHz.
Versatile HDD motor controller roadmap enables the same chip to be used across 12V and 5V drive applications and addresses CE products.

Geneva, April 25, 2006 - STMicroelectronics (NYSE: STM), a world leader in disk drive and system-on-chip solutions, today announced a new hard disk drive (HDD) motor-control chip that integrates all of the circuits required to drive both the spindle motor and the voice-coil of the drives used in personal computers. The L7207 HDD Motor Controller suits both the 5V drives made for mobile applications, and 12V desktop computer drives, thereby reducing inventory and manufacturing costs for manufacturers producing both types of drive while reducing component costs for others.

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