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LB1998 - Three-Phase Brushless Motor Driver

Description

Pin number 19 Pin name VCC2 Pin voltage 4V to 13.6V Equivalent circuit Pin function Source side predrive voltage and constant current control amplifier voltage supply pin Power supply pin for all circuits except output transistors, source predriver, and low current control amplifier Reverse de

Features

  • kΩ 3 50 kΩ A11205 Brake mode switching pin BRAKE: High.
  • > Short brake Low/Open.
  • > Reverse brake Brake mode changes when VCIN > VCREF. Continued on next page No. 5979-8/9 LB1998 Continued from preceding pa.

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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 : EN5979A LB1998 Monolithic Digital IC LB1998 Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Overview The LB1998 is a three-phase brushless motor driver especially suited for CD-ROM spindle motor drives. Package Dimensions unit: mm 3234-HSOP28HC [LB1998] 15.3 6.2 2.7 28 15 Functions • Current linear drive • Control V type amplifier • Top side current detection technique reduces loss voltage of current detection resistor. Voltage effect of this resistor reduces internal current drain of IC.
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