{"id":224897,"date":"2012-08-12T22:00:00","date_gmt":"2012-08-12T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateurs-de-tension-de-proximite-a-fonctionnalites-et-integration-elevees\/"},"modified":"2012-08-12T22:00:00","modified_gmt":"2012-08-12T22:00:00","slug":"regulateurs-de-tension-de-proximite-a-fonctionnalites-et-integration-elevees","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/regulateurs-de-tension-de-proximite-a-fonctionnalites-et-integration-elevees\/","title":{"rendered":"R\u00e9gulateurs de tension de proximit\u00e9 \u00e0 fonctionnalit\u00e9s et int\u00e9gration \u00e9lev\u00e9es"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\">Cette troisi&egrave;me g&eacute;n&eacute;ration autorise un fonctionnement en haute fr&eacute;quence et &agrave; faible taux cyclique. En r&eacute;duisant au minimum le Jitter&nbsp; pour des largeurs d&rsquo;impulsions aussi petites que 50 ns, il est maintenant possible d&rsquo;obtenir une bande passante de boucle de contre-r&eacute;action plus &eacute;lev&eacute;e, ce qui induit une r&eacute;ponse aux transitoires encore meilleure et une capacitance de sortie r&eacute;duite. En outre, l&rsquo;int&eacute;gration d&rsquo;un r&eacute;gulateur &agrave; faible chute de tension intelligent (LDO) accroit encore le rendement dans le m&ecirc;me bo&icirc;tier compact. En plus des fonctions standards telles que fr&eacute;quence de d&eacute;coupage jusqu&rsquo;&agrave; 1,5 MHz, d&eacute;marrage pr&eacute;-calibr&eacute;, fonction Enable d&eacute;pendante de la tension d&rsquo;entr&eacute;e, t&eacute;moin d&rsquo;alimentation programmable, ces composants ajoutent toute une s&eacute;rie de fonctions et d&rsquo;am&eacute;liorations suppl&eacute;mentaires pour mieux r&eacute;pondre aux besoins des syst&egrave;mes t&eacute;l&eacute;coms et r&eacute;seaux, des serveurs et des applications de stockage. Parmi celles-ci figurent une r&eacute;f&eacute;rence de tension pr&eacute;cise &agrave; 0,5 %, une r&eacute;gulation de ligne et de charge avanc&eacute;e avec r&eacute;troaction de la tension d&rsquo;entr&eacute;e et une compensation thermique pour la limitation de courant. Une entr&eacute;e analogique am&eacute;liorant la marge de man&oelig;uvre, une PLL pour optimiser la synchronisation de fr&eacute;quence externe, une rampe de d&eacute;marrage\/arr&ecirc;t et une tension d&rsquo;entr&eacute;e minimale de 1,0 V compl&egrave;tent &eacute;galement ces am&eacute;liorations.<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\">Les r&eacute;gulateurs et suiveurs de tension SupIRBuck IR3894 et IR3895 embarquent la derni&egrave;re g&eacute;n&eacute;ration de contr&ocirc;leur hautes performances propri&eacute;taire avec des MOSFET de puissance dans un bo&icirc;tier PQFN bas profil de 5 x 6 mm. Ils d&eacute;livrent des courants de sortie respectifs de 12 A et 16 A avec un rendement cr&ecirc;te sup&eacute;rieur &agrave; 96 %. Les IR3897, IR3898 et IR3899 fournissent respectivement 4 A, 6 A et 9 A dans un bo&icirc;tier de 4 x 5 mm. Ils sont d&eacute;di&eacute;s aux applications &agrave; sortie unique et faible rapport cyclique, de 5 V ou 6,8 V jusqu&rsquo;&agrave; 21 V, avec des temp&eacute;ratures de jonction en fonctionnement allant de -40 &deg;C &agrave; +125 &deg;C. Leur encombrement identique apporte de la souplesse &agrave; la conception et permet de copier-coller le layout pour acc&eacute;l&eacute;rer la mise sur le march&eacute;.<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\">&nbsp;<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\"><a title=\"www.irf.com\" target=\"_blank\" href=\"http:\/\/www.irf.com\" rel=\"noopener\">www.irf.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>International Rectifier vient d\u2019introduire sa troisi\u00e8me g\u00e9n\u00e9ration de r\u00e9gulateurs abaisseurs de tension synchrones SupIRBuck con\u00e7ue pour r\u00e9pondre aux derniers besoins de rendement \u00e9nerg\u00e9tique des r\u00e9seaux de communication, des serveurs et des applications de stockage. Ces circuits \u00e0 une tension de sortie exploitent la derni\u00e8re technique de modulation brevet\u00e9e qui g\u00e9n\u00e8re les plus petites largeurs d\u2019impulsions sans Jitter.<\/p>\n","protected":false},"author":22,"featured_media":224898,"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-224897","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateurs de tension de proximit\u00e9 \u00e0 fonctionnalit\u00e9s et in...<\/title>\n<meta name=\"description\" content=\"International Rectifier vient d\u2019introduire sa troisi\u00e8me g\u00e9n\u00e9ration de r\u00e9gulateurs abaisseurs de tension synchrones SupIRBuck con\u00e7ue pour r\u00e9pondre aux...\" \/>\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\/224897\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9gulateurs de tension de proximit\u00e9 \u00e0 fonctionnalit\u00e9s et int\u00e9gration \u00e9lev\u00e9es\" \/>\n<meta property=\"og:description\" content=\"International Rectifier vient d\u2019introduire sa troisi\u00e8me g\u00e9n\u00e9ration de r\u00e9gulateurs abaisseurs de tension synchrones SupIRBuck con\u00e7ue pour r\u00e9pondre aux derniers besoins de rendement \u00e9nerg\u00e9tique des r\u00e9seaux de communication, des serveurs et des applications de stockage. Ces circuits \u00e0 une tension de sortie exploitent la derni\u00e8re technique de modulation brevet\u00e9e qui g\u00e9n\u00e8re les plus petites largeurs d\u2019impulsions sans Jitter.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224897\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-08-12T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6795_ir6869_lres.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"360\" \/>\n\t<meta property=\"og:image:height\" content=\"288\" \/>\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 by\" \/>\n\t<meta name=\"twitter:data1\" content=\"eeNews 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