AH372-W-7

THE AH372 IS NOT RECOMMENDED FOR NEW DESIGNS. PLEASE USE THE AH3724. AH372 INTERNAL PULLUP HALL-EFFECT LATCH Description Pin Assignments The AH372 is a single-digital-output Hall-Effect latch sensor with internal pullup 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 pullup resistor. An internal bandgap 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 When the magnetic flux density (B) perpendicular to the package is larger than operation point (BOP), output is switched on (OUT pin is 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 switched off. (Front View) 3. OUT 2. GND 1. VDD The AH372 is available in SIP-3 (Ammo Pack), SIP-3 (Bulk Pack), SC59 and SOT23 packages. SIP-3 (Bulk Pack) Features Applications • • • • • • • • • • • • • Bipolar Hall-Effect Latch Operation 2.2V to 20V Operating Range Single Output with Built-in Pullup Resistor 25mA output Sink Capability -40C to +125°C Operating Temperature Industry Standard SIP-3 (Ammo Pack), SIP-3 (Bulk Pack), SC59 and SOT23 Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Notes: Rotor position sensing for motor commutations Encoders Speed measurements – RPM monitors Contact-less current switches 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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