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LB1876 - Three-Phase Brushless Motor Driver

Description

Pin name OUT1 OUT2 OUT3 IN1+, IN1 IN2+, IN2 IN3+, IN3 FG IN+ FG IN

GND1 GND2 PWM FC FGFIL Pin number 2 1 36 8, 9 6, 7 4, 5 10 11 12 13 14 15 16 FG comparator non-inverting input.

FG comparator inverting input.

Control circuit ground.

Features

  • Three-phase bipolar drive Direct PWM drive technique Built-in lower side output diode Output current limiter Reference clock input circuit (FG frequency equivalent) PLL speed control circuit Phase lock detector output (with masking function) Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protection, etc.
  • Brake method switching circuit (free-run.

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Full PDF Text Transcription

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Ordering number : ENN6201A Monolithic Digital IC LB1876 Three-Phase Brushless Motor Driver for Polygon Mirror Motors Overview The LB1876 is a driver for polygon mirror motors such as used in laser printers and similar equipment. It incorporates all necessary circuitry (speed control + driver) on a single chip. Direct PWM drive enables drive with low power loss. Package Dimensions unit: mm 3235A-HSOP36 [LB1876] 0.65 (4.9) 0.25 0.8 2.0 0.3 17.8 (6.2) 2.
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