AH477A
AH477A is SINGLE PHASE HALL EFFECT LATCH manufactured by BCD Semiconductor.
Data Sheet SINGLE PHASE HALL EFFECT LATCH General Description
The AH477A is an integrated Hall sensor with Hbridged output driver designed for brushless DC motor applications. The device includes an on-chip Hall sensor for magnetic sensing, an amplifier that amplifies the Hall voltage, a parator to provide switching hysteresis for noise rejection, a bi-directional drivers for sinking and driving large current load. It also includes an internal bandgap regulator to provide temperature pensated bias for internal circuits and allows a wide operating supply voltage range. Placing the device in a variable magnetic field, if the magnetic flux density is larger than threshold BOP, the DO is...
