{"id":231612,"date":"2014-11-27T23:00:00","date_gmt":"2014-11-27T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/capteur-dangle-de-precision-a-effet-hall\/"},"modified":"2014-11-27T23:00:00","modified_gmt":"2014-11-27T23:00:00","slug":"capteur-dangle-de-precision-a-effet-hall","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/capteur-dangle-de-precision-a-effet-hall\/","title":{"rendered":"Capteur d&rsquo;angle de pr\u00e9cision \u00e0 effet Hall"},"content":{"rendered":"<p>Ces deux circuits sont particuli&egrave;rement destin&eacute;s aux applications automobiles telles que les directions assist&eacute;es &eacute;lectriques ou les syst&egrave;mes de transmission, les capteurs de position moteur, les capteurs de vannes et de p&eacute;dales, et tout syst&egrave;me demandant une mesure d&rsquo;angle pr&eacute;cise.<br \/>\nAvec son microprocesseur int&eacute;gr&eacute; 32 bits et son EEPROM pour la programmation d&rsquo;usine et celle client, l&rsquo;A1332 offre une lin&eacute;arisation segment&eacute;e ou une lin&eacute;arisation de Fourier afin de r&eacute;pondre aux sp&eacute;cificit&eacute;s des configurations en arbre traversant, classiques dans les directions assist&eacute;es &eacute;lectriques ou les transmissions automobiles. Il supporte &eacute;galement les configurations en bout d&rsquo;arbre et fournit une mesure d&rsquo;angle pr&eacute;cise avec une sortie rafraichie toutes les 32 &micro;s. Ce circuit int&egrave;gre une interface 2 fils I2C avec les diagnostiques de la chaine de traitement de signal et des entr&eacute;es\/sorties pour plus de fiabilit&eacute; afin de r&eacute;pondre aux exigences de s&eacute;curit&eacute; ASIL de l&rsquo;automobile.<br \/>\nInt&eacute;grant des fonctionnalit&eacute;s de traitement du signal et une EEPROM pour la programmation d&rsquo;usine et client, l&rsquo;A1334 est sp&eacute;cialement d&eacute;velopp&eacute; pour les applications en bout d&rsquo;arbre demandant un taux de rafraichissement de sortie ultra rapide et une faible latence du traitement du signal. Son interface SPI 4-fils &agrave; 10 MHz offre une p&eacute;riode de rafraichissement &agrave; 25 &micro;s et une latence de traitement du signal de seulement 60 &micro;s. En plus, gr&acirc;ce &agrave; sa large tension d&rsquo;alimentation allant de 4.5 V &agrave; 14.5 V, ce circuit peut fonctionner directement branch&eacute; sur la batterie tout en consommant moins de 10 mA. Comme le pr&eacute;c&eacute;dent mod&egrave;le, il inclut les diagnostiques de la chaine de traitement de signal et des entr&eacute;es\/sorties pour satisfaire les exigences de s&eacute;curit&eacute; ASIL.\n<\/p>\n<hr \/>\n<p>Les deux mod&egrave;les peuvent fonctionner en mode basse vitesse offrant une r&eacute;solution de sortie de 12 bits pour les applications &agrave; faible vitesse angulaire et en mode haute vitesse pour les applications demandant un taux de rafraichissement plus rapide et un faible temps de latence.<br \/>\nEn plus des fonctionnalit&eacute;s de traitement du signal, ces composants incluent une compensation en temp&eacute;rature pour assurer une pr&eacute;cision sur l&rsquo;ensemble de la gamme de temp&eacute;rature automobile et sur l&rsquo;ensemble de la gamme de tension d&rsquo;alimentation. Ils sont insensibles aux variations d&rsquo;entrefer sur une large gamme de champ magn&eacute;tiques de 300 &agrave; 1000 G, ce qui leur permet d&rsquo;&ecirc;tre moins sensible aux champs magn&eacute;tiques externes et d&rsquo;assurer un haut niveau de pr&eacute;cision. La m&eacute;moire EEPROM int&eacute;gr&eacute;e autorise une grande flexibilit&eacute; de programmation des param&egrave;tres de calibration en fin de chaine de production.<br \/>\nEncapsul&eacute;s en bo&icirc;tier simple puce TSSOP 14 broches (suffixe LE) d&rsquo;&eacute;paisseur 1 mm, les A1332 et A1334 fonctionnent sur les gammes de temp&eacute;rature respectives de -40 &deg;C &agrave; +85 &deg;C et de -40 &deg;C &agrave; +150 &deg;C. Pour les syst&egrave;mes s&eacute;curitaires ISO26262 ASILD demandant un capteur redondant, ce dernier est aussi pr&eacute;vu en bo&icirc;tier double puce TSSOP 24 broches. Tous les bo&icirc;tiers sont garantis sans plomb avec un &eacute;tamage 100% &agrave; l&rsquo;&eacute;tain mat.<\/p>\n<p><a title=\"www.allegromicro.com\/A1332\" target=\"_blank\" href=\"http:\/\/www.allegromicro.com\/en\/Products\/Magnetic-Linear-And-Angular-Position-Sensor-ICs\/Angular-Position-Sensor-ICs\/A1332.aspx\" rel=\"noopener\">www.allegromicro.com\/A1332<\/a><a title=\"www.allegromicro.com\/A1334\" target=\"_blank\" href=\"http:\/\/www.allegromicro.com\/en\/Products\/Magnetic-Linear-And-Angular-Position-Sensor-ICs\/Angular-Position-Sensor-ICs\/A1334.aspx\" rel=\"noopener\"><br \/>\nwww.allegromicro.com\/A1334<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Utilisant la technologie CVH (Circular Vertical Hall), les A1332 et A1334 d\u2019Allegro Microsystems sont des capteurs magn\u00e9tiques d&rsquo;angle 360\u00b0 \u00e0 haute r\u00e9solution, sans contact \u00e0 effet Hall. Ces syst\u00e8mes sur puce (SoC) offrent un taux de rafraichissement de sortie \u00e9lev\u00e9 et une faible latence du traitement du signal pour r\u00e9pondre aux demandes vari\u00e9es des applications automobiles et industrielles.<\/p>\n","protected":false},"author":22,"featured_media":231613,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-231612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Capteur d&#039;angle de pr\u00e9cision \u00e0 effet Hall ...<\/title>\n<meta name=\"description\" content=\"Utilisant la technologie CVH (Circular Vertical Hall), les A1332 et A1334 d\u2019Allegro Microsystems sont des capteurs magn\u00e9tiques d&#039;angle 360\u00b0 \u00e0 haute...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/231612\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Capteur d&#039;angle de pr\u00e9cision \u00e0 effet Hall\" \/>\n<meta property=\"og:description\" content=\"Utilisant la technologie CVH (Circular Vertical Hall), les A1332 et A1334 d\u2019Allegro Microsystems sont des capteurs magn\u00e9tiques d&#039;angle 360\u00b0 \u00e0 haute r\u00e9solution, sans contact \u00e0 effet Hall. Ces syst\u00e8mes sur puce (SoC) offrent un taux de rafraichissement de sortie \u00e9lev\u00e9 et une faible latence du traitement du signal pour r\u00e9pondre aux demandes vari\u00e9es des applications automobiles et industrielles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/231612\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-11-27T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci7051_allegro-a1332-a1334_lo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2250\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written 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