Ampson Technology, Inc.
SINGLE OUTPUT HALL EFFECT SWITCH IC
A6852S/N
FEATURES
1) Wide range of supply voltage:3.5V to 28V.
2) Internal bandgap regulator allows temperature
compensated operations and a wide operating
voltage range.
3) High sensitivity with a small magnet.
4) TTL and MOS ICs directly drivable by output.
5) Build in protection diode for chip reverse power
connecting.
6) Package: SIP-3.
GENERAL DESCRIPTION
A6852S/N is an integrated Hall effect switch sensor
with output pull-high resistor driver designed for
electronic commutation of brushless DC motor
applications and contactless switches. 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 output driver with
pull-high resistor. An internal bandgap regulator is
used to provide temperature compensated supply
voltage for internal circuits and allows a wide
A6852S/N is srated for operation over temperature
range from -20 C to 100 C and voltage range from
3.5V to 28V. The devices are available in low cost
die forms or rugged 3 pin SIP packages.
o
o
operating supply range.
If a magnetic flux density larger than threshold Bop,
DO is turned on(low). The output state is held until
a magnetic flux density reversal falls below Brp
causing DO to be turned off(high).
APPLICATIONS
1) DC Motor
2) DC Fan
3) Position Sensors
4) Rotation Sensors
5) Revolution Counting
6) Speed Measurement
7) Keyboard Switches
8) Microswitches
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8/11/2003 REV.1.1
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