DESCRIPTION
 SK8509 is a semiconductor integrated circuit utilizing the Hall  effect. It has been so designed as to operate in the accurately track  extremely small changes in magnetic flux density-changes generally  too small to operate Hall-effect switches. This Hall IC is suitable  for application to various kinds of sensors, contact-less switches,  motion detectors, gear tooth sensors, and proximity detectors, and  the like.

FEATURES
* Wide Supply Voltage Range of 4V to 7V
* Wide Temperature Operation Range of -20°С ~+85°С
* The Life is Semipermanent because it Employs Contactless Parts