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LB11995 - Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive

Description

Pin number 3 Pin name Pin voltage 4V to 13.6V Equivalent circuit Pin function VCC2 VCC3 Source side predrive voltage supply pin Constant current control amplifier voltage supply pin Power supply pin for all circuits except output transistors, source predriver, and constant current control amp

Features

  • e output Upper side output NPN transistor collector pin (common for all 3 phases). For current detection, connect resistor between VCC3 pin and RF pin. Constant current control and current l.

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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 : EN6112 LB11995 Monolithic Digital IC LB11995 Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Overview The LB11995 is a 3-phase brushless motor driver especially suited for CD-ROM spindle motor drives. Package Dimensions unit: mm 3227-HSOP24 [LB11995] 15.3 4.3 0.3 Allowable power dissipation, Pd max – W • 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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