Features and Functions
• 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 12 V or 24 V 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 1.5 A.
• Built-in rotation detect function (Drive mode: ‘‘L’’, Stop mode: ‘‘H’’)
• Built-in thermal shutdown
• With radio noise reduction pin

Applications
    2-Phase unipolar brushless motor (ex. DC brushless fan motor) drivers