{"id":232604,"date":"2015-03-22T23:00:00","date_gmt":"2015-03-22T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseur-dc-dc-jusqua-500-ma-65-v\/"},"modified":"2015-03-22T23:00:00","modified_gmt":"2015-03-22T23:00:00","slug":"convertisseur-dc-dc-jusqua-500-ma-65-v","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-dc-dc-jusqua-500-ma-65-v\/","title":{"rendered":"Convertisseur DC\/DC jusqu\u2019\u00e0 500 mA, 65 V"},"content":{"rendered":"<p>Fonctionnant sur la gamme de tensions d&rsquo;entr&eacute;e de 2,55 V &agrave; 40 V, ces deux composants conviennent aux applications aliment&eacute;es &agrave; partir d&rsquo;un &eacute;l&eacute;ment de batterie Li-ion jusqu&rsquo;aux tensions utilis&eacute;es dans l&rsquo;automobile. Leur fr&eacute;quence de commutation fixe, programmable entre 200 kHz et 1,5 MHz, permet aux concepteurs de minimiser la taille des composants externes. La combinaison d&rsquo;un bo&icirc;tier DFN-8 ou MSOP-8E et de petits composants externes conduit &agrave; une empreinte tr&egrave;s compacte tout en minimisant le co&ucirc;t de la r&eacute;alisation.<br \/>\nLes deux dispositifs comprennent des commutateurs internes pouvant r&eacute;aliser des rendements jusqu&rsquo;&agrave; 86%. Un blocage en cas de sous-tension (UVLO) est r&eacute;glable par l&rsquo;utilisateur pour un fonctionnement optimal du syst&egrave;me. Une seule r&eacute;sistance dans la boucle de r&eacute;gulation fixe la tension de sortie, ce qui r&eacute;duit le nombre de composants externes. Les autres caract&eacute;ristiques comprennent une possibilit&eacute; de synchronisation externe, un d&eacute;marrage progressif interne, une protection par arr&ecirc;t thermique et la capacit&eacute; de travailler dans des applications en modes inverseur et SEPIC.<br \/>\nPropos&eacute;s en bo&icirc;tiers &agrave; performances thermiques renforc&eacute;es DFN-8 de 3 x 3 mm et MSOP-8, ces deux convertisseurs sont compatibles en brochage et fonctionnent &agrave; une temp&eacute;rature de jonction allant de -40 &deg;C &agrave; +125 &deg;C pour les classes de temp&eacute;ratures industrielles et plus &eacute;lev&eacute;es.<\/p>\n<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LT8570\" target=\"_blank\" title=\"www.linear.com\/product\/LT8570\" rel=\"noopener\">www.linear.com\/product\/LT8570<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Configurables en mode \u00e9l\u00e9vateur, SEPIC ou inverseur, les convertisseurs DC\/DC \u00e0 mode courant et \u00e0 fr\u00e9quence fixe LT8570 et LT8570-1 de Linear Technology utilisent respectivement un commutateur interne de 500 mA ou de 250 mA, 65 V. Le plus petit commutateur du LT8570-1 autorise l\u2019emploi d\u2019une inductance plus r\u00e9duite dans les applications \u00e0 faible intensit\u00e9. <\/p>\n","protected":false},"author":22,"featured_media":232605,"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-232604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur DC\/DC jusqu\u2019\u00e0 500 mA, 65 V ...<\/title>\n<meta name=\"description\" content=\"Configurables en mode \u00e9l\u00e9vateur, SEPIC ou inverseur, les convertisseurs DC\/DC \u00e0 mode courant et \u00e0 fr\u00e9quence fixe LT8570 et LT8570-1 de Linear Technology...\" \/>\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\/232604\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseur DC\/DC jusqu\u2019\u00e0 500 mA, 65 V\" \/>\n<meta property=\"og:description\" content=\"Configurables en mode \u00e9l\u00e9vateur, SEPIC ou inverseur, les convertisseurs DC\/DC \u00e0 mode courant et \u00e0 fr\u00e9quence fixe LT8570 et LT8570-1 de Linear Technology utilisent respectivement un commutateur interne de 500 mA ou de 250 mA, 65 V. Le plus petit commutateur du LT8570-1 autorise l\u2019emploi d\u2019une inductance plus r\u00e9duite dans les applications \u00e0 faible intensit\u00e9.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/232604\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2015-03-22T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci7179_linear_lt8570.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2016\" \/>\n\t<meta property=\"og:image:height\" content=\"1440\" \/>\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 Europe\" \/>\n\t<meta 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