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LB11870 - Three-Phase Brushless Motor Driver

Features

  • 10.5 7.9 LB11870 Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage range 5 V constant voltage output current LD pin applied voltage LD pin output current FGS pin applied voltage FGS pin output current Symbol VCC IREG VLD ILD VFGS IFGS Conditions Ratings 9.5 to 28 0 to.
  • 20 0 to 28 0 to 15 0 to 28 0 to 10 Unit V mA V mA V mA Electrical Characteristics at Ta = 25°C, VCC = VM = 24 V Parameter Supply current 1 Supply current 2 [5 V Constant Voltage Output Circuit] Output vo.

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Full PDF Text Transcription

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Ordering number : ENN7256 Monlithic Digital IC LB11870 Three-Phase Brushless Motor Driver for Polygonal Mirror Motors Overview The LB11870 is a three-phase brushless motor driver developed for driving the motors used with the polygonal mirror in laser printers and plain paper copiers. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11870 can implement motor drive with minimal power loss due to its use of direct PWM drive. Package Dimensions unit: mm 3265-HSSOP48 [LB11870] 17.8 (6.2) 48 25 (4.9) • • • • • • • Three-phase bipolar drive Direct PWM drive Includes six high and low side diodes on chip.
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