The AH287 is an integrated Hall sensor with output drivers for brushless DC motor application. This IC consists of two complementary outputs for motor’s coil driving and has automatic lock protection and auto- restart function relatively. To avoid coil burning, rotor lock shutdown protection circuit shut down the output driver if the rotor blocked and then the automatic recovery circuit will try to restart the motor. This function repeats while rotor is blocked. Until the blocking is removed, the motor recovers running normally. In addition, the auto-restart time is flexible by adjusting the capacitance (CCT). Placing the device in a variable magnetic field, if the magnetic flux density is larger than threshold BOP, the DO is turned to sink and DOB is turned to drive. This output state is held until a magnetic flux density reversal falls below BRP, causing DO to be turned to drive and DOB turned to sink. This IC is available in TO-94 package.
You Might Like
Recommended ContentMore
Open source project More
Popular Components
Searched by Users
Just Take a LookMore
Trending Downloads
Trending ArticlesMore