The KH1103 is an integrated Hall effect latched sensor with CMOS technology designed for electronic commutation of brush-less DC motor applications. The Device includes an on-chip Hall voltage generator with dynamic offset cancellation system for accurate magnetic sensing, a comparator that amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and an output driver with a pull up resistor which connects to VDD. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

The KH1103 is designed to respond to alternating North and South poles. While the magnetic flux density is larger than operate point(BOP), the output will be turned on(Low), the output is held until the magnetic flux density is lower than release point(BRP), then turn off(High).

The KH1103 is available in TO-92S and SOT23-3 packages which are optimized for most applications.