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AH373

Diodes Incorporated
Part Number AH373
Manufacturer Diodes Incorporated
Description INTERNAL PULL-UP HALL EFFECT LATCH
Published Aug 1, 2015
Detailed Description AH373 INTERNAL PULL-UP HALL EFFECT LATCH Description AH373 is a single-digital-output Hall-Effect latch sensor with int...
Datasheet PDF File AH373 PDF File

AH373
AH373

Overview
AH373 INTERNAL PULL-UP HALL EFFECT LATCH Description 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.
When the magnetic flux density (B) perpendicular to the package is larger than operate 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.
The AH373 is available in SIP-3L, SC59 and SOT23 packages.
Pin Assignments (TOP View) SC59 and SOT23 (TOP View) SIP-3L 3.
OUT 2.
GND 1.
VDD Features  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-3L, SC59 and SOT23 Packages  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free.
“Green” Device (Note 3) Applications  Rotor Position Sensing for Motor Commutation  Encoder  Speed Measurement – RPM Monitor  Contact-less Current Switch Notes: 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
Typical Application Circuits IA IB Driver & IC Ia Ib Ic Control Logic HA HB HC...


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