OCH41F

WWW.ORIENT-CHIP.COM ◼ General Description The OCH41F is an integrated Hall Effect latched 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 amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF. OCH41F Bipolar Hall Effect Position Sensor ◼ Features ⚫ Wide operating voltage range: 4.0V~30V ⚫ Wide operating temperature range: -40°C ~+150°C ⚫ Reverse polarity protection ⚫ Package: SIP-3L ◼ Applications ⚫ Rotor Position Sensing ⚫ Brush-less DC Fan ⚫ Brush-less DC Motor ⚫ Speed measurement ⚫ Revolution counting ...