芯片, 电机驱动器, 3相, 无刷电机, HSOP-36
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.
Features
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3-phase bipolar drive
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Direct PWM drive technique
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Built-in lower side output diode
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Output current limiter
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Reference clock input circuit FG frequency equivalent
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PLL speed control circuit
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Phase lock detector output with masking function
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Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protection, etc.
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Brake method switching circuit free-run or reverse torque
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5V regulator output
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Power save function