DTS276

www.din-tek.jp Complementary Output Hall Effect Latch DTS276/277 „ Features „ General Description - On-chip Hall sensor with two different sensitivity and hysteresis settings for DTS276/277 - 3.5V to 18V operating voltage - 350mA (avg) output sink current - Built-in protecting diode only for chip reverse power connecting - -40°C to 85°C operating temperature - Low profile 4 pin SIP package „ Applications - Dual-coil Brush-less DC Motor - Dual-coil Brush-less DC Fan - Revolution Counting - Speed Measurement DTS276/277 are integrated Hall sensors with output drivers, mainly designed for electronic commutation of brush-less DC Fan. This IC internally includes the regulator, protecting diode, Hall plate, amplifier, comparator, and a pair of complementary open-collector outputs (DO, DOB). While the magnetic flux density (B) is larger than operate point (Bop), DO will turn on (low), and meanwhile DOB will turn off (high). Each output is latched until B is lower than release point ...