General Description

AH276 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).

Features

• On-chip Hall sensor with two different sensitivity and hysteresis settings for AH276

• Built-in protecting diode only for chip reverse power connecting

•-20°C to 85°C operating temperature

• Lead Free Package: SIP-4L

• SIP-4L: Available in “Green” Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

Applications

• Dual-coil Brush-less DC Motor

• Dual-coil Brush-less DC Fan

•Revolution Counting

•Speed Measurement