Ordering number : EN6204A LB1867M Monolithic Digital IC 2-phase Brushless Fan Motor Driver http://onsemi.
com Overview 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 • 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 dio...

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