LB1867M-TLM-H Datasheet PDF - ON Semiconductor

●The LB1867M 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

● External resistor allows configuration for 12V or 24V

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

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

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

● Built-in lockup protection with automatic recovery

● Built-in thermal shutdown