General Description

ATS278 is an integrated Hall sensor with two output drivers and rotor speed output, typically designed for electronic commutation of two-phase brush-less DC fan applications.

Features

- On-chip Hall plate

- Operating voltage: 3.5V~20V

- Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range

- High output sinking capability up to 400mA for driving large load

- Built-in protection diode only for chip reverse power connecting

- Frequency Generation (FG) output

- Package: SIP-5L

Applications

- Dual-coil Brush-less DC Motor

- Dual-coil Brush-less DC Fan

- Revolution Counting

- Speed Measurement