LB1868M-TLM-E

Fan Motor Driver 6.7V 14Pin MFP T/R

The LB1868M is a 2-phase unipolar brushless motor driver. With only a few peripheral parts, lockup protection and automatic recovery can be implemented. The IC can be configured for 12V or 24V operation and a wide range of variations, from Low speed to H-High speed and from 60cm to 120cm square using the same PCB. This makes it easy to design highly reliable fan motor installations.

Features

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Output protection Zener diode with variable withstand voltage

Z1, Z2 pins open: VOLM = 57V 24V specification

Z1, Z2 pins shorted: VOLM = 32V 12V specification

External Zener diode connected across Z1-VCC pins: support for fans with large drive current

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External resistor allows configuration for 12V or 24V

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Direct Hall element connection possible built-in Hall amplifier with hysteresis supports core without auxiliary electrode

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Built-in output transistor with 1.0A output current strengthened negative-current support for core without auxiliary electrode

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Built-in rotation detection function: Low during rotation and High during stop

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Built-in lockup protection with automatic recovery

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ST pin for motor stop/drive for standby mode of copiers etc.

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BC pin for kickback noise reduction with 2 external capacitors

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FG output pin for rotation detection

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Built-in thermal shutdown