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A1193LUA-T3 Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A1193LUA-T3 Datasheet(HTML) 1 Page - Allegro MicroSystems |
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1 / 22 page  DESCRIPTION The A119x and A119x-F comprise a family of two-wire, unipolar, Hall-effect switches, which can be trimmed by the user at end-of-line to optimize magnetic switchpoint accuracy in the application. The latter (-F option) are temperature- compensated for use with ferrite magnets. These devices are producedontheAllegro™advancedBiCMOSwaferfabrication process,which implementsapatentedhigh-frequency,4-phase, chopper stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments. The A119x and A119x-F family has a number of automotive applications.Theseincludesensingseattrackposition,seatbelt bucklepresence,hood/trunklatching,andshiftselectorposition. Two-wire unipolar switches are particularly advantageous in cost-sensitive applications because they require one less wire for operation versus the more traditional open-collector output switches. Additionally, the system designer inherently gains diagnostics because there is always output current flowing, which should be in either of two narrow ranges. Any current level not within these ranges indicates a fault condition. All family members are offered in three package styles. The LH is a SOT-23W style, miniature, low-profile package for surface- mount applications. The UA is a 3-pin, ultra-mini, single inline package(SIP)forthrough-holemounting.TheUBisa2-pinsingle inline package (SIP) for through-hole mounting that integrates the power supply decoupling capacitor. All three packages are lead (Pb) free, with 100% matte-tin leadframe plating. A1190-DS, Rev. 7 FEATURES AND BENEFITS ▪Choiceoffactory-settemperaturecoefficient(TC)foruse with ferrite or rare-earth magnets ▪Fieldprogrammableforoptimizedswitchpoints ▪AEC-Q100automotivequalified ▫On-boardvoltageregulator:3to24Voperation ▪High-speed,4-phasechopperstabilization ▫Lowswitchpointdriftthroughouttemperaturerange ▫Lowsensitivitytothermalandmechanicalstresses ▪On-chipprotection ▫Supplytransientprotection ▫Reverse-batteryprotection ▫Industry-leadingISO7637-2performancethroughuseof proprietary,40Vclampingstructure ▪Solid-statereliability ▪RobustEMCandESDperformance ▪UBpackagewithintegrated0.1µFbypasscapacitor Programmable, Chopper-Stabilized, Two-Wire Hall-Effect Switches Functional Block Diagram A119x and A119x-F Packages Not to scale 3-pin SOT23-W 2 mm × 3 mm × 1 mm (suffix LH) 3-pin ultramini SIP 1.5 mm × 4 mm × 3 mm (suffix UA) 2-pin ultramini SIP 1.5 mm × 4 mm × 4 mm (suffix UB) Amp Regula To all subcircuits tor Schmitt Trigger Polarity Low-Pass Filter GND VCC GND UA package only UB package only LH &UA package only 0 0 . . 01 1 µF µF V+ Clock/Logic Program / Lock I CC Adjust Offset Adjust |
Similar Part No. - A1193LUA-T3 |
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Similar Description - A1193LUA-T3 |
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