Datasheet Summary
One-chip motor driver
Rev. 01
- 31 January 2005
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Preliminary data sheet
1. General description
The SA56203S is a one-chip motor driver IC that is capable of driving all motors of CD or DVD systems e.g. spindle, sled and loading motors and actuators on the optical pick-up unit. The driver intended for the 3-phase, brushless, Hall-mutated spindle motor uses True-Silent PWM. This proprietary technology ensures that all 3-phase motor currents are sinusoidal resulting in an optimally silent driver. Internal regeneration of the back EMF of the spindle motor enables the driver to operate in current-steering mode without using external power-dissipating sense...