{"id":227782,"date":"2013-08-22T22:00:00","date_gmt":"2013-08-22T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/pompe-de-charge-250-ma-de-classe-mp\/"},"modified":"2013-08-22T22:00:00","modified_gmt":"2013-08-22T22:00:00","slug":"pompe-de-charge-250-ma-de-classe-mp","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/pompe-de-charge-250-ma-de-classe-mp\/","title":{"rendered":"Pompe de charge 250 mA de classe MP"},"content":{"rendered":"<p>Ses circuits internes s&eacute;lectionnent imm&eacute;diatement le rapport de conversion de 1 &agrave; 2, 1 &agrave; 1 ou 2 &agrave; 1 pour optimiser le rendement en fonction des variations de la tension d&rsquo;entr&eacute;e et de la charge. La faible consommation de fonctionnement, de 18 &micro;A sans charge et de 4 &micro;A &agrave; l&rsquo;arr&ecirc;t, et le petit nombre de composants externes qui se limite &agrave; trois petit condensateurs &agrave; di&eacute;lectrique c&eacute;ramique sans inductance, rendent cette pompe de charge bien adapt&eacute;e pour les applications de l&rsquo;automobile, &agrave; espace r&eacute;duit, de faible puissance, comme les alimentations d&rsquo;&eacute;metteur-r&eacute;cepteur ECU\/CAN, les alimentations de service d&rsquo;entretien pour l&rsquo;industrie et la conversion efficace, de faible puissance, de 12 V en 5 V.<br \/>\nSon architecture unique &agrave; fr&eacute;quence constante, avec des vitesses de commutations r&eacute;duites, g&eacute;n&egrave;re des niveaux de bruits de conduction et de rayonnement moindres que ceux des r&eacute;gulateurs &agrave; d&eacute;coupage conventionnels. Le composant poss&egrave;de une broche pour s&eacute;lectionner le fonctionnement en Burst Mode qui autorise l&rsquo;utilisateur &agrave; choisir entre une ondulation de sortie la plus faible et un meilleur rendement avec un courant de repos minimum. Ses autres caract&eacute;ristiques incluent un petit nombre de composants externes, la stabilit&eacute; avec des condensateurs &agrave; di&eacute;lectrique c&eacute;ramique, un circuit de d&eacute;marrage progressif pour emp&ecirc;cher les courants d&rsquo;appel excessifs au moment de la mise sous tension, une protection contre les courts-circuits et une protection thermique.<br \/>\nCe composant est disponible en bo&icirc;tier compact MSOP de 12 broches &agrave; semelle thermique.<\/p>\n<\/p>\n<p><a title=\"www.linear.com\/product\/LTC3245\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/ltc3245\" rel=\"noopener\">www.linear.com\/product\/LTC3245<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le circuit abaisseur-\u00e9l\u00e9vateur en pompe de charge 250 mA et de forte tension LTC3245 de Linear Technology se compl\u00e8te d\u2019une version haute fiabilit\u00e9 de classe MP qui \u00e9tend sa gamme de temp\u00e9ratures de jonction de -55 \u00b0C \u00e0 +150 \u00b0C. Ce circuit utilise une conversion fractionnaire \u00e0 condensateur commut\u00e9 pour maintenir la r\u00e9gulation sur la large gamme de la tension d\u2019entr\u00e9e de 2,7 V \u00e0 38 V et g\u00e9n\u00e9rer une tension de sortie r\u00e9gul\u00e9e de 3,3 V, 5 V ou r\u00e9glable de 2,5 V \u00e0 5 V. <\/p>\n","protected":false},"author":22,"featured_media":227783,"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-227782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Pompe de charge 250 mA de classe MP ...<\/title>\n<meta name=\"description\" content=\"Le circuit abaisseur-\u00e9l\u00e9vateur en pompe de charge 250 mA et de forte tension LTC3245 de Linear Technology se compl\u00e8te d\u2019une version haute fiabilit\u00e9 de...\" \/>\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\/227782\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pompe de charge 250 mA de classe MP\" \/>\n<meta property=\"og:description\" content=\"Le circuit abaisseur-\u00e9l\u00e9vateur en pompe de charge 250 mA et de forte tension LTC3245 de Linear Technology se compl\u00e8te d\u2019une version haute fiabilit\u00e9 de classe MP qui \u00e9tend sa gamme de temp\u00e9ratures de jonction de -55 \u00b0C \u00e0 +150 \u00b0C. Ce circuit utilise une conversion fractionnaire \u00e0 condensateur commut\u00e9 pour maintenir la r\u00e9gulation sur la large gamme de la tension d\u2019entr\u00e9e de 2,7 V \u00e0 38 V et g\u00e9n\u00e9rer une tension de sortie r\u00e9gul\u00e9e de 3,3 V, 5 V ou r\u00e9glable de 2,5 V \u00e0 5 V.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/227782\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2013-08-22T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eenewseurope.com\/wp-content\/uploads\/import\/default\/files\/import\/eci6554_linear_ltc3245mp.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1677\" \/>\n\t<meta property=\"og:image:height\" content=\"1198\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" 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