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LB11997H - Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive

Description

Source side predrive voltage supply pin.

Constant current control amplifier voltage supply pin.

Features

  • are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products(including technical d.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ordering number : ENN*6231 LB11997H Monolithic Digital IC LB11997H Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Preliminary Overview The LB11997H is a 3-phase brushless motor driver especially suited for CD-ROM spindle motor drives. Package Dimensions unit: mm 3234-HSOP28H-C [LB11997H] 15.3 28 15 • Current linear drive • Control V type amplifier • Separate power supply for output upper side bias circuit allows low output saturation by boosting this power supply only (useful for 5V power supply types). • Upper side current detection technique reduces loss voltage of current detection resistor. Voltage drop caused by this resistor reduces internal power dissipation of IC.
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