{"id":192034,"date":"2016-11-16T09:00:00","date_gmt":"2016-11-16T09:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-elevateur-synchrone-38-v-fonctionnant-a-150-c\/"},"modified":"2016-11-16T09:00:00","modified_gmt":"2016-11-16T09:00:00","slug":"controleur-elevateur-synchrone-38-v-fonctionnant-a-150-c","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-elevateur-synchrone-38-v-fonctionnant-a-150-c\/","title":{"rendered":"Contr\u00f4leur \u00e9l\u00e9vateur synchrone, 38 V, fonctionnant \u00e0 150 \u00b0C"},"content":{"rendered":"<p align=\"left\">A partir d\u2019une tension d\u2019entr\u00e9e de 12 V, ce contr\u00f4leur peut fournir une tension de sortie de 24 V \u00e0 5A avec un rendement pouvant atteindre 98%, ce qui le rend appropri\u00e9 aux applications industrielles, m\u00e9dicales et de l\u2019automobile. Il fonctionne sur une gamme de tensions d\u2019entr\u00e9e de 4,5 V \u00e0 38 V au d\u00e9marrage et continue \u00e0 fonctionner jusqu\u2019\u00e0 2,5 V apr\u00e8s le d\u00e9marrage tout en pouvant r\u00e9guler une tension de sortie aussi \u00e9lev\u00e9e que 60 V. Sa faible consommation de 55 \u00b5A au repos \u00e9tend l\u2019autonomie des applications aliment\u00e9es sur batterie quand elles sont en mode veille.<br \/>\nSes puissants contr\u00f4leurs de grille commandent, avec des temps de mont\u00e9es tr\u00e8s courts, les grilles des MOSFET canal N de 1,2 ohm pr\u00e9sents sur la carte, ce qui r\u00e9duit les pertes de transitions et autorise un courant de sortie jusqu\u2019\u00e0 10 A. En outre, le composant poss\u00e8de un dispositif de protection par limitation de l\u2019intensit\u00e9 du courant cycle par cycle et utilise une r\u00e9sistance pour la mesure du courant ou g\u00e8re la chute de tension aux bornes de l\u2019inductance (DCR).<\/p>\n<p align=\"left\">Dans les applications o\u00f9 la tension d\u2019entr\u00e9e peut \u00eatre sup\u00e9rieure \u00e0 la tension de sortie r\u00e9gul\u00e9e, le contr\u00f4leur peut maintenir le MOSFET synchrone en fonctionnement satur\u00e9 de sorte que la tension de sortie suive la tension d\u2019entr\u00e9e avec un minimum de pertes. Il r\u00e9gule sur une fr\u00e9quence synchronis\u00e9e par boucle \u00e0 verrouillage de phase de 75 kHz \u00e0 850 kHz, ou&nbsp;sur une fr\u00e9quence fixe pouvant \u00eatre s\u00e9lectionn\u00e9e de 50 kHz \u00e0 900 kHz.<\/p>\n<p align=\"left\">Cette version de classe H est encapsul\u00e9e dans un bo\u00eetier MSOP-16 \u00e0 performances thermiques renforc\u00e9es, ou un bo\u00eetier QFN-16 de seulement 3 x 3mm.<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LTC3786\" target=\"_blank\" rel=\"noopener\">www.linear.com\/product\/LTC3786<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le contr\u00f4leur DC\/DC \u00e9l\u00e9vateur synchrone LTC3786 de Linear Technology est d\u00e9sormais propos\u00e9 en version de classe H garantissant un fonctionnement \u00e0 des temp\u00e9ratures de jonction pouvant atteindre 150\u00b0C. De plus, il remplace la diode \u00e9l\u00e9vatrice par un MOSFET canal N pour un rendement plus \u00e9lev\u00e9 et pour r\u00e9duire les pertes de puissance.<\/p>\n","protected":false},"author":9,"featured_media":192035,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[909,890],"domains":[47],"ppma_author":[1141],"class_list":["post-192034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-batteries-power-supplies-fr","tag-powermanagement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur \u00e9l\u00e9vateur synchrone, 38 V, fonctionnant \u00e0 150 \u00b0C ...<\/title>\n<meta name=\"description\" content=\"Le contr\u00f4leur DC\/DC \u00e9l\u00e9vateur synchrone LTC3786 de Linear Technology est d\u00e9sormais propos\u00e9 en version de classe H garantissant un fonctionnement \u00e0 des...\" \/>\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\/192034\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur \u00e9l\u00e9vateur synchrone, 38 V, fonctionnant \u00e0 150 \u00b0C\" \/>\n<meta property=\"og:description\" content=\"Le contr\u00f4leur DC\/DC \u00e9l\u00e9vateur synchrone LTC3786 de Linear Technology est d\u00e9sormais propos\u00e9 en version de classe H garantissant un fonctionnement \u00e0 des temp\u00e9ratures de jonction pouvant atteindre 150\u00b0C. De plus, il remplace la diode \u00e9l\u00e9vatrice par un MOSFET canal N pour un rendement plus \u00e9lev\u00e9 et pour r\u00e9duire les pertes de puissance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/192034\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-11-16T09:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8172_linear_ltc3786h.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1888\" \/>\n\t<meta property=\"og:image:height\" content=\"1349\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alain 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