SDC177 ic

         Speed Measurement

         Revolution Counting

         Dual coils Brush-less DC Fan

         Dual coils Brush-less DC Motor

 APPLICATION

         Package : TO-92S

         25mA(avg) output sink current

         Open collector outputs

         Includes temperature compensation circuit

         3.5V to 20 V operating voltage

  FEATURES                                

The SDC177 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: brushless DC motors, brushless DC fans, and velocity measurement occasions.

 GENERAL DESCRIPTION