{"id":225572,"date":"2012-11-08T23:00:00","date_gmt":"2012-11-08T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-hot-swap-double-pour-linsertion-a-chaud-securisee-de-la-carte\/"},"modified":"2012-11-08T23:00:00","modified_gmt":"2012-11-08T23:00:00","slug":"controleur-hot-swap-double-pour-linsertion-a-chaud-securisee-de-la-carte","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-hot-swap-double-pour-linsertion-a-chaud-securisee-de-la-carte\/","title":{"rendered":"Contr\u00f4leur Hot Swap double pour l\u2019insertion \u00e0 chaud s\u00e9curis\u00e9e de la carte"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"margin-top:0cm;margin-right:28.3pt;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;line-height:normal\">Chaque alimentation est &eacute;quip&eacute;e d&rsquo;un disjoncteur &eacute;lectronique et d&rsquo;une limite de courant plus &eacute;lev&eacute;e&nbsp;gr&acirc;ce &agrave; une s&eacute;lection de trois niveaux. Choisir le niveau appropri&eacute; permet &agrave; la carte de fonctionner malgr&eacute; le bruit et de brefs transitoires dans la charge, au-dessus du seuil du disjoncteur, sans modifier l&rsquo;intensit&eacute;&nbsp;ni parasiter&nbsp;la tension de sortie. Une minuterie de pannes, &agrave; double &eacute;valuation, prot&egrave;ge le MOSFET et le syst&egrave;me des surintensit&eacute;s de longue dur&eacute;e ou dommageables. <\/p>\n<p class=\"MsoNormal\" style=\"margin-top:0cm;margin-right:28.3pt;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;line-height:normal\">Ce contr&ocirc;leur propose une mise en &oelig;uvre compacte, durcie, pour l&rsquo;insertion &agrave; chaud de deux alimentations, soit bien r&eacute;gul&eacute;es (5 V, 12 V, 24 V) ou variant dans de fortes proportions, comme dans les syst&egrave;mes aliment&eacute;s sur batterie. Ses broches ON mettent en pratique un r&eacute;gulateur UVLO externe, r&eacute;glable, tout en d&eacute;tectant un connecteur compl&egrave;tement&nbsp;ins&eacute;r&eacute;. Une pompe de charges int&eacute;gr&eacute;e assure le contr&ocirc;le de la grille des MOSFET canal N standard, avec des niveaux de 12 V pour prot&eacute;ger la couche de di&eacute;lectrique des grilles. Les sorties d&rsquo;erreur indiquent la dur&eacute;e d&rsquo;arr&ecirc;t du disjoncteur, mais peuvent &eacute;galement &ecirc;tre forc&eacute;es au niveau bas pour arr&ecirc;ter le MOSFET. Avec le c&acirc;blage de plusieurs sorties d&rsquo;erreur en circuit OU, chaque contr&ocirc;leur est arr&ecirc;t&eacute; si l&rsquo;un d&rsquo;eux est confront&eacute; &agrave; une surintensit&eacute;. Dans les applications &agrave; une seule alimentation, les deux canaux Hot Swap sont reli&eacute;s soit en parall&egrave;le pour des intensit&eacute;s plus fortes avec des MOSFET moins puissants ou en s&eacute;rie pour un circuit d&rsquo;arr&ecirc;t bidirectionnel.<\/p>\n<p class=\"MsoNormal\" style=\"margin-top:0cm;margin-right:28.3pt;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;line-height:normal\">Ce circuit est pr&eacute;sent&eacute; en deux versions, le LTC4226-1 se bloque apr&egrave;s une surintensit&eacute;, tandis que le LTC4226-2 tente un red&eacute;marrage automatique apr&egrave;s un d&eacute;lai de 500 ms. Sp&eacute;cifi&eacute;s pour les classes des gammes de temp&eacute;ratures commerciales et industrielles, ces composants sont pr&eacute;sent&eacute;s en bo&icirc;tiers compacts de 16 broches MSOP et QFN de 3 x 3 mm.<\/p>\n<p class=\"MsoNormal\" style=\"margin-top:0cm;margin-right:28.3pt;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;line-height:normal\">&nbsp;<\/p>\n<p><a title=\"www.linear.com\/product\/LTC4226\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/LTC4226\" rel=\"noopener\">www.linear.com\/product\/LTC4226<\/a><span style=\"font-size:12.0pt;line-height:150%;color:blue\"><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le contr\u00f4leur Hot Swap double LTC4226 de Linear Technology permet une insertion \u00e0 chaud, en toute s\u00e9curit\u00e9, de la carte dans des fonds de panier de 4,5 V \u00e0 44 V. Ce circuit contr\u00f4le des MOSFET canal N pour alimenter la carte en douceur, \u00e9vitant les \u00e9tincelles, la d\u00e9t\u00e9rioration des connecteurs et les cr\u00eates de tension.<\/p>\n","protected":false},"author":22,"featured_media":225573,"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-225572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur Hot Swap double pour l\u2019insertion \u00e0 chaud s\u00e9curi...<\/title>\n<meta name=\"description\" content=\"Le contr\u00f4leur Hot Swap double LTC4226 de Linear Technology permet une insertion \u00e0 chaud, en toute s\u00e9curit\u00e9, de la carte dans des fonds de panier de 4,5 V...\" \/>\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\/225572\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur Hot Swap double pour l\u2019insertion \u00e0 chaud s\u00e9curis\u00e9e de la carte\" \/>\n<meta property=\"og:description\" content=\"Le contr\u00f4leur Hot Swap double LTC4226 de Linear Technology permet une insertion \u00e0 chaud, en toute s\u00e9curit\u00e9, de la carte dans des fonds de panier de 4,5 V \u00e0 44 V. 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