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8958 VOICE COIL MOTOR DRIVER

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Description

8958 LOGIC SUPPLY INHIBIT UV1 UV2 LIMIT GROUND AB GROUND AB PARK VOLTAGE SENSE IN * IN A+ IN A * OUT A 1 2 3 4 5 6 7 8 9 9 B 10 11 12 1..

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Datasheet Specifications

Part number
8958
Manufacturer
Allegro MicroSystems
File Size
113.48 KB
Datasheet
8958_AllegroMicroSystems.pdf
Description
VOICE COIL MOTOR DRIVER

Features

* include a power ok flag, a limit input to force the outputs to their maximum level in either polarity, an over-riding output disable to shut down both power amplifiers and reduce quiescent supply current, and internal thermal shutdown which disables the load (but still allowing the head to be parked

Applications

* the A8958CLB is a full-bridge driver which can be configured so that its output current is a direct function of an externally applied control voltage or current. This linear current control function is supplemented by additional circuitry to protect the heads and the data disk during system failure

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