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OBSOLETE – PART DISCONTINUED
PART OBSOLETE - USE AH3774/AH3775
ATS177
SINGLE OUTPUT HALL EFFECT LATCH
Description
ATS177 is an integrated Hall-Effect latch sensor designed for electronic commutation of brush-less DC motor applications. The device 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 bandgap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range.
When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (DO pin is pulled low).