L7208| Datasheet

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L7208
Portable consumer electronics spindle and VCM motor controller
Data Brief

General features

Spindle driver

0.5A peak current drive capability Integrated power driver devices ST Smooth Drive architecture Current sense with zero external components Inductive sense start-up support

UFLGA

Description

VCM driver

0.5A peak current drive capability Integrated power driver devices 14 Bit linear DAC for current command Ramp load/unload and emergency retract support

L7208 is available in an ultra-thin package and is optimized for 1.8 inch and sub-1.8 inch consumer equipment drives.

Other functions

Integrated positive and negative switching regulators Shock detect circuitry 10-bit ADC

POR on reset with integrated delay

O code Order
Part number L7208

Free fall interface

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The spindle motor driver subsystem integrates all power FETs driven by ST's Smooth Drive commutation technology. The voice coil driver block includes the power FETs, emergency retract function as well as ramp load and unload capability. Positive and negative regulators are integrated together with provision for shock sensing and free-fall detection. Extremely low power consumption, in all modes of operation, is achieved by an optimized chip partitioning enabling extended battery life in consumer applications. L7208 embeds a serial interface with a maximum speed of 50 MHz.

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Package UFLGA

Packing Tray

September 2006

Rev 1

1/3
www.st.com 3

For further information contact your local STMicroelectronics sales office.