AH59
COMPLEMENTARY OUTPUT HALL EFFECT SWITCHES
These sensor are an integrated Hall sensor with output driver designed for electronic commutation of brushless
DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier
that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and
complementary open-collector drivers for sinking large current loads. 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, DO is turned on (low) and DOB is turned off (high). The output
state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high) and DOB
turned on.
FEATURES
One chip hall sensor.
4.5V to 20V supply voltage.
350mA (avg) output sink current.
Build in protection diode for chip reverse power connecting.
20 to 85 operating temperature.CC
Low profile SIP-4L packages.
ESD rating: 2000V (Human body model).
TYPICAL APPLICATIONS
Dual-coil Brushless DC motor.
Dual-coil Brushless DC fan.
Revolution Counting
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