MA7025AA is an integrated Hall effect latched sensor designed for electronic commutation
of b-less DC motor applications. The device is using HV BCD process includes an
on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall
voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and
open-collector output. An internal band-gap regulator is used to provide temperature
compensated supply voltage for internal circuits and allows a wide operating supply range.
If a magnetic flux density larger than threshold Bop, OUT is turned on(low). The output
state is held until a magnetic flux density reversal falls below Brp causing OUT to be turned
off (high)
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