PT3911N Overview
DC Brushless Motor Hall Driver IC PT3911(N) Hall Driver IC Applications 5V/12V/24V double coils DC brushless motor Revolution counting Speed Measurement DC 2.7V~28V Operation Voltage Package: TO-92-4pin X=2.10mm Sensor location Y=1.25mm 3911(N) xxxx. 1234 B Z=0.43mm Marking side.