Overview
The LB1663 series are 2-phase unipolar brushless motor (ex. DC brushless fanmotor) drivers.

FEATUREs
• Protection against motor lock and automatic return can be provided with a minimum number of external parts.
• The LB1663, LB1663M, LB1666 can be operated from either 12V or 24V power supply by changing an external resistor.
• Possible to connect a Hall element direct to the LB1663, LB1663M, LB1666.
• Built-in output transistors with output current 1.5A.
• Built-in rotation detect function (Drive mode : ‘‘L’’, Stop mode : ‘‘H’’).
• Built-in thermal shutdown.
• With radio noise reduction pin.