{"id":224265,"date":"2012-05-10T22:00:00","date_gmt":"2012-05-10T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/gestionnaire-double-de-tensions-et-de-temperatures\/"},"modified":"2012-05-10T22:00:00","modified_gmt":"2012-05-10T22:00:00","slug":"gestionnaire-double-de-tensions-et-de-temperatures","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/gestionnaire-double-de-tensions-et-de-temperatures\/","title":{"rendered":"Gestionnaire double de tensions et de temp\u00e9ratures"},"content":{"rendered":"<h1 align=\"left\" style=\"margin-top:0cm;margin-right:1.0cm;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;text-align:left;line-height:115%\">Ce circuit mesure la temp&eacute;rature d&rsquo;une diode d&eacute;port&eacute;e avec une pr&eacute;cision de &plusmn;1 &deg;C et la temp&eacute;rature de sa propre puce &agrave; &plusmn;2 &deg;C, tout en rejetant les erreurs dues au bruit et &agrave; la r&eacute;sistance s&eacute;rie. Deux rails de tensions, dont l&rsquo;un de 2,25V &agrave; 5,5V &eacute;tant requis pour alimenter le composant, sont r&eacute;gul&eacute;s avec une pr&eacute;cision de &plusmn;1,5%, ce qui permet de minimiser les marges de tensions requises par le syst&egrave;me.<\/h1>\n<h1 align=\"left\" style=\"margin-top:0cm;margin-right:1.0cm;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;text-align:left;line-height:115%\">Il pr&eacute;sente une sortie de tension proportionnelle &agrave; la temp&eacute;rature absolue (VPTAT), ainsi que des sorties d&rsquo;alerte individuelles de temp&eacute;rature inf&eacute;rieure, temp&eacute;rature sup&eacute;rieure, sous-tension et surtension d&eacute;finies par des seuils r&eacute;glables par l&rsquo;utilisateur. Aucun code n&rsquo;est requis pour configurer le composant. Il combine les fonctions de surveillance de temp&eacute;ratures et de double surveillance de tensions dans un produit de tr&egrave;s faible consommation ce qui &eacute;conomise l&rsquo;espace.<\/h1>\n<p class=\"MsoBodyText\" style=\"line-height: 115%\">Les utilisateurs peuvent choisir de mesurer une temp&eacute;rature locale, une temp&eacute;rature d&eacute;port&eacute;e, ou les deux en alternance, tandis que deux broches de sortie de temp&eacute;rature peuvent &ecirc;tre configur&eacute;es en signaux d&rsquo;alerte de n&rsquo;importe quelle combinaison &quot;temp&eacute;rature inf&eacute;rieure et\/ou temp&eacute;rature sup&eacute;rieure&quot;. Les changements de temp&eacute;ratures sont actualis&eacute;s toutes les 3,5 ms afin de donner un temps suffisant aux dispositifs pour r&eacute;agir aux alertes. Une sortie r&eacute;f&eacute;rence de tension de 1,8V est &eacute;galement disponible pour un partage avec un CNA externe ou pour g&eacute;n&eacute;rer des tensions de seuil de temp&eacute;rature. Quand il g&egrave;re les tensions, un filtre d&rsquo;impulsion en entr&eacute;e r&eacute;duit les r&eacute;initialisations erron&eacute;es dues au bruit, tandis que les deux alimentations partagent une broche sous-tension et surtension. Tous les seuils sont facilement r&eacute;gl&eacute;s par des diviseurs r&eacute;sistifs et le d&eacute;lai de r&eacute;initialisation pour toutes les sorties d&rsquo;alertes peut &ecirc;tre fix&eacute; par un seul condensateur. Ce circuit ne consomme qu&rsquo;un courant d&rsquo;alimentation de 220 &micro;A sur toute la gamme de temp&eacute;ratures de fonctionnement. Il est pr&eacute;sent&eacute; dans les versions commerciales, industrielles et pour l&rsquo;automobile, dans les gammes de temp&eacute;ratures respectives, de 0 &deg;C &agrave; 70 &deg;C, -40 &deg;C &agrave; 85 &deg;C et &#8209;40 &deg;C &agrave; 125 &deg;C.<br \/>\nCe composant est disponible en bo&icirc;tier QFN 20 broches de 3 x 3mm, et est conforme &agrave; la norme RoHS.<\/p>\n<p class=\"MsoBodyText\" style=\"line-height:115%\"><a href=\"http:\/\/www.linear.com\/product\/ltc2995\" target=\"_blank\" title=\"www.linear.com\/product\/LTC2995\" rel=\"noopener\">www.linear.com\/product\/LTC2995<\/a><span style=\"font-size:10.0pt;line-height:150%\"> <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology pr\u00e9sente le LTC2995, un double gestionnaire d\u2019alimentations et de capteur de temp\u00e9rature, de grande pr\u00e9cision, pour les syst\u00e8mes basse tension. Il s\u2019adresse \u00e0 une grande vari\u00e9t\u00e9 d\u2019applications, incluant le contr\u00f4le thermique d\u2019un dispositif, la collecte d\u2019\u00e9nergie, les ordinateurs de bureau et notebooks, les serveurs de r\u00e9seaux et la surveillance environnementale.<\/p>\n","protected":false},"author":22,"featured_media":224266,"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-224265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Gestionnaire double de tensions et de temp\u00e9ratures ...<\/title>\n<meta name=\"description\" content=\"Linear Technology pr\u00e9sente le LTC2995, un double gestionnaire d\u2019alimentations et de capteur de temp\u00e9rature, de grande pr\u00e9cision, pour les syst\u00e8mes...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224265\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gestionnaire double de tensions et de temp\u00e9ratures\" \/>\n<meta property=\"og:description\" content=\"Linear Technology pr\u00e9sente le LTC2995, un double gestionnaire d\u2019alimentations et de capteur de temp\u00e9rature, de grande pr\u00e9cision, pour les syst\u00e8mes basse tension. Il s\u2019adresse \u00e0 une grande vari\u00e9t\u00e9 d\u2019applications, incluant le contr\u00f4le thermique d\u2019un dispositif, la collecte d\u2019\u00e9nergie, les ordinateurs de bureau et notebooks, les serveurs de r\u00e9seaux et la surveillance environnementale.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224265\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-05-10T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6104_ltc2995.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2050\" \/>\n\t<meta property=\"og:image:height\" content=\"1464\" \/>\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 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