{"id":221333,"date":"2011-03-21T23:00:00","date_gmt":"2011-03-21T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/pilotes-de-mosfet-canal-n-100-v-fonctionnant-de-40-c-a-150c\/"},"modified":"2011-03-21T23:00:00","modified_gmt":"2011-03-21T23:00:00","slug":"pilotes-de-mosfet-canal-n-100-v-fonctionnant-de-40-c-a-150c","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/pilotes-de-mosfet-canal-n-100-v-fonctionnant-de-40-c-a-150c\/","title":{"rendered":"Pilotes de MOSFET canal N, 100 V, fonctionnant de &#8211; 40\u00b0 C \u00e0 150\u00b0C"},"content":{"rendered":"<p>Une protection&nbsp;contre le recouvrement de conduction, r&eacute;glable, est int&eacute;gr&eacute;e pour r&eacute;duire le temps mort afin d&#8217;emp&ecirc;cher les deux MOSFET, sup&eacute;rieur et inf&eacute;rieur, d&rsquo;&ecirc;tre conducteurs simultan&eacute;ment. Ces puissants pilotes peuvent fournir jusqu&rsquo;&agrave; 1,4 A, avec une imp&eacute;dance&nbsp;de tirage &agrave; la masse de 1,5 ohms pour piloter le MOSFET sup&eacute;rieur et jusqu&rsquo;&agrave; 1,75 A avec une imp&eacute;dance&nbsp;de tirage &agrave; la masse de 0,75&nbsp;ohm pour le MOSFET inf&eacute;rieur, ce qui le rend id&eacute;al pour le pilotage de MOSFET de forte intensit&eacute; et de capacit&eacute; de porte &eacute;lev&eacute;e. Le LTC4444H\/-5 peut piloter plusieurs MOSFET mont&eacute;s en parall&egrave;le, pour des applications de plus forte intensit&eacute;. Les pertes de commutation sont r&eacute;duites gr&acirc;ce aux temps de mont&eacute;e rapide de 8 ns, et de descente de 5 ns du MOSFET sup&eacute;rieur, et aux temps de mont&eacute;e de 6 ns et de descente de 3 ns du MOSFET inf&eacute;rieur, lorsque la charge pr&eacute;sente une capacit&eacute; de 1000 pF.<br \/>\nLe LTC4444H\/-5 est configur&eacute; pour deux entr&eacute;es d&rsquo;alimentations ind&eacute;pendantes. Le signal logique d&rsquo;entr&eacute;e c&ocirc;t&eacute; haut est amen&eacute; au niveau de l&rsquo;alimentation&nbsp;de tirage de fa&ccedil;on interne, qui peut atteindre 114 V &agrave; partir de la masse. Le LTC4444-5 pilote les grilles des deux MOSFET, sup&eacute;rieur et inf&eacute;rieur, sur une gamme de tensions de 4,5 V &agrave; 13,5 V, et le LTC4444 pilote les grilles des deux MOSFET, sup&eacute;rieur et inf&eacute;rieur, sur une gamme de tensions de 7,2 V &agrave; 13 V.<br \/>\nLes deux composants sont disponibles en bo&icirc;tier MSOP-8, &agrave; performances thermiques renforc&eacute;es. <\/p>\n<p><a href=\"http:\/\/www.linear.com\/4444\">www.linear.com\/4444<\/a><\/p>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology annonce la version de classe H du LTC4444\/-5, un pilote de grille de MOSFET, rapide, synchrone, \u00e0 tension d&rsquo;entr\u00e9e \u00e9lev\u00e9e (100 V), con\u00e7u pour piloter les MOSFET canal N haut et bas, de puissance, dans des topologies de convertisseurs \u00e0 redressement synchrone. Ce pilote, associ\u00e9 \u00e0 des MOSFET et \u00e0 un des nombreux contr\u00f4leurs DC\/DC de Linear Technology, constitue un r\u00e9gulateur synchrone complet, de rendement \u00e9lev\u00e9. Le LTC4444H\/-5 fonctionne sur une gamme de la temp\u00e9rature de jonction, de &#8211; 40\u00b0C \u00e0 150\u00b0C, alors que la gamme de temp\u00e9ratures de la version de classe I est de &#8211; 40\u00b0C \u00e0 85\u00b0C.<\/p>\n","protected":false},"author":22,"featured_media":221334,"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-221333","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Pilotes de MOSFET canal N, 100 V, fonctionnant de - 40\u00b0 C \u00e0 1...<\/title>\n<meta name=\"description\" content=\"Linear Technology annonce la version de classe H du LTC4444\/-5, un pilote de grille de MOSFET, rapide, synchrone, \u00e0 tension d&#039;entr\u00e9e \u00e9lev\u00e9e (100 V),...\" \/>\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\/221333\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pilotes de MOSFET canal N, 100 V, fonctionnant de - 40\u00b0 C \u00e0 150\u00b0C\" \/>\n<meta property=\"og:description\" content=\"Linear Technology annonce la version de classe H du LTC4444\/-5, un pilote de grille de MOSFET, rapide, synchrone, \u00e0 tension d&#039;entr\u00e9e \u00e9lev\u00e9e (100 V), con\u00e7u pour piloter les MOSFET canal N haut et bas, de puissance, dans des topologies de convertisseurs \u00e0 redressement synchrone. 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