General Description

AH1751 is a single-digital-output Hall-effect sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

Features

• Bipolar Hall Effect Latch Sensor

• 3.5V to 20V DC Operation Voltage

• Open Collector Pre-Driver

• 50mA Output Sink Current

• Chip Power Reverse-Connection Protection

• Operating Temperature: -40oC~125oC

• SIP3, SC59 and SC59R (Commonly known as SOT23 in Asia): Available in “Green” Molding Compound (No Br, Sb)

• Lead Free Finish/ RoHS Compliant (Note 1)

Applications

• Rotor Position Sensing

• Current Switch

• Encoder

• RPM Detection