{"id":224377,"date":"2012-05-24T22:00:00","date_gmt":"2012-05-24T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-elevateur-synchrone-en-classe-h-et-mp\/"},"modified":"2012-05-24T22:00:00","modified_gmt":"2012-05-24T22:00:00","slug":"controleur-elevateur-synchrone-en-classe-h-et-mp","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/controleur-elevateur-synchrone-en-classe-h-et-mp\/","title":{"rendered":"Contr\u00f4leur \u00e9l\u00e9vateur, synchrone, en classe H et MP"},"content":{"rendered":"

Ce contrôleur peut fournir une tension de sortie de 24 V à 10 A, à partir d’une tension d’entrée de 12V, avec un rendement pouvant atteindre 97%. Sa consommation en veille de 135 µA, lorsqu’il est configuré en Burst Mode, est bien adaptée aux applications de l’automobile et des secteurs industriels et médicaux. Les versions de classes H et MP sont garanties pour fonctionner, respectivement, sur les gammes de températures de jonction de -40 °C à 150 °C et de -55 °C à 150 °C.
\nCe circuit travaille sur une gamme de tensions d’entrée de 4,5 V à 38 V au démarrage mais accepte jusqu’à 2,5 V après le démarrage et peut réguler une tension de sortie aussi élevée que 60 V. De puissants drivers peuvent commander les grilles des MOSFET canal N de 1,20 ohm, présents sur la puce, avec des temps de montée très courts. L’architecture à mode courant, la sortie d’horloge et la modulation de phase du composant permettent une mise en parallèle facile de plusieurs d’entre eux pour un fonctionnement jusqu’à 12 phases. Ce contrôleur fonctionne sur une fréquence synchronisée par boucle à verrouillage de phase de 75 kHz à 850 kHz, ou sur une fréquence fixe pouvant être sélectionnée de 50 kHz à 900 kHz. Il est disponible en boîtiers SSOP-28 et QFN-28 de 4 x 5mm.<\/p>\n

www.linear.com\/product\/LTC3787<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Linear Technology Corporation annonce les versions de classes H et MP du LTC3787. Ce contr\u00f4leur PolyPhase DC\/DC \u00e9l\u00e9vateur, synchrone, \u00e0 sortie deux phases, de forte puissance, dans lequel les diodes \u00e9l\u00e9vatrices sont remplac\u00e9es par des MOSFET canal N de haut rendement, autorise la suppression du radiateur normalement requis dans les convertisseurs \u00e9l\u00e9vateurs de puissances moyennes \u00e0 \u00e9lev\u00e9es.<\/p>\n","protected":false},"author":22,"featured_media":224378,"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-224377","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Contr\u00f4leur \u00e9l\u00e9vateur, synchrone, en classe H et MP ...<\/title>\n<meta name=\"description\" content=\"Linear Technology Corporation annonce les versions de classes H et MP du LTC3787. 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Ce contr\u00f4leur PolyPhase DC\/DC \u00e9l\u00e9vateur, synchrone, \u00e0 sortie deux phases, de forte puissance, dans lequel les diodes \u00e9l\u00e9vatrices sont remplac\u00e9es par des MOSFET canal N de haut rendement, autorise la suppression du radiateur normalement requis dans les convertisseurs \u00e9l\u00e9vateurs de puissances moyennes \u00e0 \u00e9lev\u00e9es.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224377\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-05-24T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6119_ltc3787.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"571\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews 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