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3275
COMPLEMENTARY-OUTPUT HALL-EFFECT LATCH
Type UGN3275K latching Hall-effect sensors are bipolar integrated circuits designed for electronic commutation of brushless dc motors. They feature dual complementary outputs. The latches are typically used to sense matched magnetic flux densities of alternating polarity from multipole ring magnets.
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Data Sheet 27632.2
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Each sensor IC includes a Hall voltage generator, operational amplifier, Schmitt trigger, voltage regulator, and dual bipolar output transistors. The regulator allows use of the integrated circuit with supply voltages of 4.5 V to 24 V. If the Hall cell is exposed to a magnetic flux density greater than the operate threshold (BOP), OUTPUT goes low (turns on) and OUTPUT goes high (turns off).