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AH276
Complementary Output Hall Effect Latch Features
- On-chip Hall sensor with two different sensitivity and hysteresis settings for AH276 - 400mA (avg) output sink current - Built-in protecting diode only for chip reverse power connecting - -20°C to 85°C operating temperature - Low profile 4 pin SIP package
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). While the magnetic flux density (B) is larger than operate point (Bop), DO will turn on (low), and meanwhile DOB will turn off (high).