SDC443 integrated circuits

         Speed Measurement

         Revolution Counting

         Dual coils Brush-less DC Fan

         Dual coils Brush-less DC Motor

n       APPLICATION

         Package : TO-92S

         25mA(avg) output sink current

         Open collector outputs

         Includes temperature compensation circuit

         3.5V to 20 V operating voltage

n       FEATURES                                

The SDC443 is a lock-type switch hall IC by reverse circuit protection, high stability of the voltage regulator, Hall voltage generator, a differential amplifier, Schmitt trigger and open collector output stage composition, changes in the magnetic field can be converted into digital signal voltage output. It can be used in brushless DC motors, brushless DC fans, and velocity measurement occasions.

n       GENERAL DESCRIPTION