{"id":221527,"date":"2011-04-21T22:00:00","date_gmt":"2011-04-21T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateurs-dc-dc-compacts-et-flexibles-a-entree-unique\/"},"modified":"2011-04-21T22:00:00","modified_gmt":"2011-04-21T22:00:00","slug":"regulateurs-dc-dc-compacts-et-flexibles-a-entree-unique","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateurs-dc-dc-compacts-et-flexibles-a-entree-unique\/","title":{"rendered":"R\u00e9gulateurs DC-DC compacts et flexibles, \u00e0 entr\u00e9e unique"},"content":{"rendered":"<p>Les iP1837 et iP1827 int&egrave;grent un MOSFET de commande, un FETKY synchrone, une diode et un condensateur d&rsquo;amor&ccedil;age (bootstrap) et une protection contre les surintensit&eacute;s dans un bo&icirc;tier LGA compact de 7,7&#215;7,7 mm, r&eacute;duisant ainsi le nombre de composants et la taille de circuit imprim&eacute; n&eacute;cessaire de 20 % par rapport aux solutions discr&egrave;tes. Ces circuits assurent une mesure de tension diff&eacute;rentielle pour une r&eacute;gulation plus pr&eacute;cise et embarquent une r&eacute;f&eacute;rence de tension pr&eacute;cise &agrave; +\/-0,5 % en temp&eacute;rature, un ajustement au plus pr&egrave;s des temps morts pour optimiser le rendement et une fonction dite body braking de conduction en cas de variation de charge qui am&eacute;liore la r&eacute;ponse transitionnelle. En outre, les iP1837 et iP1827 sont compatibles broche &agrave; broche pour les applications 25 A et 35 A, pr&eacute;sentent une large gamme de tensions d&rsquo;entr&eacute;e allant de 1,5 V &agrave; 16 V ainsi qu&rsquo;une fr&eacute;quence programmable jusqu&rsquo;&agrave; 1,5 MHz et une polarisation flexible sous 5 V ou 3,3 V &agrave; entr&eacute;e unique. Ils sont optimis&eacute;s pour fonctionner avec une entr&eacute;e 12 V et de faibles tensions de sortie. Ces composants sont totalement prot&eacute;g&eacute;s et int&egrave;grent notamment une protection am&eacute;lior&eacute;e contre les pics de courant, compens&eacute;e en temp&eacute;rature, qui assure une limite de courant stable en temp&eacute;rature. Parmi les autres fonctionnalit&eacute;s figurent un d&eacute;marrage pr&eacute;d&eacute;fini, une protection en surtension, une coupure en cas de pic de temp&eacute;rature, une broche d&rsquo;activation (enable) avec surveillance de tension, une sortie t&eacute;moin d&rsquo;alimentation valide (power good) et un d&eacute;marrage progressif programmable.<\/p>\n<p><a href=\"http:\/\/www.irf.com\/\">http:\/\/www.irf.com<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>International Rectifier lance les r\u00e9gulateurs de tension iPowIR iP1837 et iP1827 pour les applications de proximit\u00e9 ou POL (point-of-load) telles que les serveurs et les \u00e9quipements de stockage, de transmission de donn\u00e9es et de t\u00e9l\u00e9communications n\u00e9cessitant un courant \u00e9lev\u00e9.<\/p>\n","protected":false},"author":22,"featured_media":221528,"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-221527","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateurs DC-DC compacts et flexibles, \u00e0 entr\u00e9e unique ...<\/title>\n<meta name=\"description\" content=\"International Rectifier lance les r\u00e9gulateurs de tension iPowIR iP1837 et iP1827 pour les applications de proximit\u00e9 ou POL (point-of-load) telles que les...\" \/>\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\/221527\/\" 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