{"id":235238,"date":"2015-12-23T23:00:00","date_gmt":"2015-12-23T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-dalimentation-universel-pour-lautomobile\/"},"modified":"2015-12-23T23:00:00","modified_gmt":"2015-12-23T23:00:00","slug":"circuit-dalimentation-universel-pour-lautomobile","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-dalimentation-universel-pour-lautomobile\/","title":{"rendered":"Circuit d&rsquo;alimentation universel pour l&rsquo;automobile"},"content":{"rendered":"<p>Les syst&egrave;mes automobiles &agrave; s&eacute;curit&eacute; critique, comme les directions &eacute;lectriques EPS ou les syst&egrave;mes de freinage, doivent r&eacute;pondre aux exigences ASIL-D qui correspondent au plus haut niveau d&rsquo;int&eacute;grit&eacute; de s&eacute;curit&eacute; automobile prescrit par la norme de s&eacute;curit&eacute; fonctionnelle ISO 26262.<br \/>\nCe dispositif int&egrave;gre donc plusieurs fonctions de d&eacute;tection de panne, telles que celles de surtension ou de tension insuffisante, et de surchauffe du circuit d&rsquo;alimentation, pour superviser le risque de panne du CI lui-m&ecirc;me, ainsi qu&rsquo;un timer chien-de-garde pour assurer la d&eacute;tection de panne du MCU externe. Un premier circuit de diagnostic permettant de d&eacute;tecter les d&eacute;fauts latents dans les circuits de d&eacute;tection de panne est &eacute;galement incorpor&eacute; pour augmenter encore le niveau de s&eacute;curit&eacute; fonctionnelle.<br \/>\nCe composant g&eacute;n&egrave;re une tension de 6 V &agrave; partir d&rsquo;un convertisseur DC-DC &agrave; haut rendement. Afin d&rsquo;&eacute;viter les probl&egrave;mes en cas de chute de tension lorsque l&rsquo;on actionne le d&eacute;marreur, la plage de tension op&eacute;rationnelle descend jusque 2.7 V (mini) en fonctionnement sur batterie.<br \/>\nLe CI comporte quatre circuits de sortie d&rsquo;alimentation s&eacute;rie recevant l&rsquo;entr&eacute;e 6 V g&eacute;n&eacute;r&eacute;e par le convertisseur DC\/DC. Il dispose aussi d&rsquo;un circuit &agrave; tension de sortie 5 V constante, d&rsquo;une capacit&eacute; de 400 mA, pour microcalculateur et de 3 circuits &agrave; tension de sortie 5 V constante, d&rsquo;une capacit&eacute; de 100 mA, pour capteurs et autres interfaces. Chacun d&rsquo;eux peut g&eacute;n&eacute;rer une tension diff&eacute;rente.<\/p>\n<p>Toute une gamme d&rsquo;analyses fonctionnelles de s&eacute;curit&eacute; a &eacute;t&eacute; effectu&eacute;e en usine pour simuler diff&eacute;rentes pannes syst&egrave;me et l&rsquo;int&eacute;grateur peut disposer de toute la documentation, telle que la FMEDA de s&eacute;curit&eacute; fonctionnelle, pour supporter l&rsquo;analyse et la conception globale de s&eacute;curit&eacute;.<\/p>\n<p><a title=\"www.toshiba.semicon-storage.com\" href=\"http:\/\/www.toshiba.semicon-storage.com\/\" target=\"_blank\" rel=\"noopener\">www.toshiba.semicon-storage.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour permettre aux conceptions automobiles de r\u00e9pondre aux exigences ASIL-D, Toshiba Electronics vient de lancer le circuit d&rsquo;alimentation syst\u00e8me \u00e0 usage universel TB9044FNG dot\u00e9 de plusieurs sorties et de circuits de s\u00e9curit\u00e9 fonctionnelle. Ce CI est actuellement \u00e9chantillonn\u00e9 en petit bo\u00eetier HTSSOP48-P-300-0.50 de seulement 6.1 x 12.5 x 1.0 mm.<\/p>\n","protected":false},"author":22,"featured_media":235239,"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-235238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit d&#039;alimentation universel pour l&#039;automobile ...<\/title>\n<meta name=\"description\" content=\"Pour permettre aux conceptions automobiles de r\u00e9pondre aux exigences ASIL-D, Toshiba Electronics vient de lancer le circuit d&#039;alimentation syst\u00e8me \u00e0 usage...\" \/>\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\/235238\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit d&#039;alimentation universel pour l&#039;automobile\" \/>\n<meta property=\"og:description\" content=\"Pour permettre aux conceptions automobiles de r\u00e9pondre aux exigences ASIL-D, Toshiba Electronics vient de lancer le circuit d&#039;alimentation syst\u00e8me \u00e0 usage universel TB9044FNG dot\u00e9 de plusieurs sorties et de circuits de s\u00e9curit\u00e9 fonctionnelle. 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