{"id":227730,"date":"2013-08-13T22:00:00","date_gmt":"2013-08-13T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-elevateur-pfc-en-boitier-sot-23-5-broches\/"},"modified":"2013-08-13T22:00:00","modified_gmt":"2013-08-13T22:00:00","slug":"circuit-elevateur-pfc-en-boitier-sot-23-5-broches","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/circuit-elevateur-pfc-en-boitier-sot-23-5-broches\/","title":{"rendered":"Circuit \u00e9l\u00e9vateur PFC en bo\u00eetier SOT-23 5 broches"},"content":{"rendered":"

L’IRS2505L s’ajoute à la famille de circuits de contrôle PFC µPFCTM d’IR et présente un nouveau système de commande permettant d’implémenter un contrôleur PFC en seulement 5 broches, ce qui réduit de manière significative la taille, le nombre de composants et le coût du système global. L’IRS2505L peut être configuré pour fonctionner en configuration flyback, abaisseur (buck) ou élévateur (boost) PFC en conduction critique.
\nCe circuit intégré embarque un oscillateur en roue libre avec contrôle du délai d’activation (on time) et de désactivation (off time) du MOSFET de puissance élévateur. Le contrôle du temps d’activation permet de maintenir une tension de sortie de bus DC précise et constante tout en fournissant un courant d’entrée principale AC sinusoïdal, pour obtenir un facteur de puissance élevé et une distorsion harmonique totale très faible. Le délai de désactivation est déterminé par un bloc de détection de courant nul dans l’inductance, qui ne nécessite pas de second bobinage, racourcissant encore la liste des composants.
\nL’IRS2505L présente une large gamme de tensions d’entrée et de charges, une tension de sortie de bus DC régulée et un niveau de tension de bus DC programmable. Parmi les fonctions de protection figurent une protection en surtension du bus DC, une protection programmable contre les pics de courant du MOSFET et une protection contre les décharges électrostatiques intégrée sur chaque broche. Un courant réduit de démarrage, un verrouillage Zener interne à 20,8 V sur Vcc et une immunité au blocage (latch) sur toutes les entrées et sorties sont également inclus.<\/p>\n

\n

www.irf.com<\/a><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

International Rectifier vient d’introduire \u00a0l’IRS2505LTRPBF, le plus petit circuit \u00e9l\u00e9vateur \u00e0 correction de facteur de puissance ou PFC (power factor correction) de l’industrie. Encapsul\u00e9 en bo\u00eetier SOT-23 5 broches, il vise les alimentations \u00e0 d\u00e9coupage, les pilotes de LED et les applications d’\u00e9clairage fluorescent et HID \u00e0 ballast \u00e9lectronique.<\/p>\n","protected":false},"author":22,"featured_media":227731,"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-227730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Circuit \u00e9l\u00e9vateur PFC en bo\u00eetier SOT-23 5 broches ...<\/title>\n<meta name=\"description\" content=\"International Rectifier vient d'introduire \u00a0l'IRS2505LTRPBF, le plus petit circuit \u00e9l\u00e9vateur \u00e0 correction de facteur de puissance ou PFC (power factor...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/227730\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit \u00e9l\u00e9vateur PFC en bo\u00eetier SOT-23 5 broches\" \/>\n<meta property=\"og:description\" content=\"International Rectifier vient d'introduire \u00a0l'IRS2505LTRPBF, le plus petit circuit \u00e9l\u00e9vateur \u00e0 correction de facteur de puissance ou PFC (power factor correction) de l'industrie. Encapsul\u00e9 en bo\u00eetier SOT-23 5 broches, il vise les alimentations \u00e0 d\u00e9coupage, les pilotes de LED et les applications d'\u00e9clairage fluorescent et HID \u00e0 ballast \u00e9lectronique.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/227730\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2013-08-13T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/test.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci3857_ir.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"360\" \/>\n\t<meta property=\"og:image:height\" content=\"288\" \/>\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\" 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