AH373-WG-7

NOT RECOMMENDED FOR NEW DESIGN USE AH3782 AH373 INTERNAL PULL-UP HALL EFFECT LATCH Description Pin Assignments AH373 is a single-digital-output Hall-Effect latch sensor with internal pull-up resistor 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 output driver with a pull-up resistor. An internal band-gap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range. (Top View) 3. OUT GND 2. 1. VDD SC59 and SOT23 (Top View) When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop), output is switched on (OUT pin is 3. OUT 2. GND pulled low). The output state is held on until a magnetic flux density reversal falls below Brp. When B is less than Brp, the output is 1. VDD switched off. SIP-3 The AH373 is available in SIP-3, SC59 and SOT23 packages. Features Applications      Bipolar Hall Effect Latch Operation 2.2V to 20V Operating Range Single Output with Built-in Pull-up Resistor 25mA Output Sink Capability -40C to +125°C Operating Temperature        Industry Standard SIP-3, SC59 and SOT23 Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: Rotor Position Sensing for Motor Commutation Encoder Speed Measurement – RPM Monitor Contact-less Current Switch 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green‖ products are defined as those which contain