{"id":146514,"date":"2017-08-22T22:20:01","date_gmt":"2017-08-22T22:20:01","guid":{"rendered":"https:\/\/\/convertisseur-dc-dc-elevateur-sepic-inverseur\/"},"modified":"2017-08-22T22:20:01","modified_gmt":"2017-08-22T22:20:01","slug":"convertisseur-dc-dc-elevateur-sepic-inverseur","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-dc-dc-elevateur-sepic-inverseur\/","title":{"rendered":"Convertisseur DC\/DC \u00e9l\u00e9vateur \/ SEPIC \/ inverseur"},"content":{"rendered":"<p>Ce circuit fonctionne \u00e0 partir d\u2019une plage de tension d\u2019entr\u00e9e, de 2,8V \u00e0 60V, convenant aux applications dont les sources d\u2019entr\u00e9e vont d\u2019une batterie \u00e0 un \u00e9l\u00e9ment Li-ion aux tensions d\u2019entr\u00e9e pour l\u2019automobile et l\u2019industrie. Le LT8362 peut \u00eatre configur\u00e9 en convertisseur \u00e9l\u00e9vateur, SEPIC ou inverseur. Sa fr\u00e9quence de commutation peut \u00eatre programm\u00e9e de 300kHz \u00e0 2MHz, ce qui permet aux concepteurs de r\u00e9duire la taille des composants externes et d\u2019\u00e9viter les bandes de fr\u00e9quences sensibles, comme la bande radio AM. De plus, il pr\u00e9sente un rendement de plus de 90% en commutant \u00e0 2MHz. Le fonctionnement en Burst Mode<sup>\u00ae<\/sup> r\u00e9duit le courant de repos \u00e0 seulement 9\u00b5A et maintient le niveau d\u2019ondulation de la tension de sortie inf\u00e9rieur \u00e0 15mV<sub>cr\u00eate-\u00e0-cr\u00eate<\/sub>. La combinaison d\u2019un bo\u00eetier DFN, 3mm x 3mm, ou MSOP-16E pour tension \u00e9lev\u00e9e, et de petits composants externes assure une empreinte tr\u00e8s compacte et r\u00e9duit le co\u00fbt de la r\u00e9alisation.<\/p>\n<p>Le commutateur 165m\u2126 du LT8362 permet des rendements sup\u00e9rieurs \u00e0 95%. Il peut aussi fonctionner en modulation de fr\u00e9quence \u00e0 \u00e9talement de spectre pour minimiser les probl\u00e8mes li\u00e9s aux EMI (interf\u00e9rences \u00e9lectromagn\u00e9tiques). La tension de sortie, qu\u2019elle soit positive ou n\u00e9gative, est fix\u00e9e via une seule broche de boucle de r\u00e9gulation, ce qui minimise le nombre&nbsp;de broches. Les autres caract\u00e9ristiques comprennent une synchronisation externe, la programmation du blocage en cas de sous-tension (UVLO) compensation interne, un d\u00e9marrage progressif interne, le repliement de fr\u00e9quence&nbsp;et un d\u00e9marrage progressif programmable.<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LT8362\">www.linear.com\/product\/LT8362<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices, Inc., qui a acquis r\u00e9cemment Linear Technology Corporation, annonce le LT8362, un convertisseur DC\/DC, \u00e9l\u00e9vateur, \u00e0 mode courant, 2MHz, avec un commutateur interne de 60V, 2A.<\/p>\n","protected":false},"author":9,"featured_media":146515,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-146514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur DC\/DC \u00e9l\u00e9vateur \/ SEPIC \/ inverseur ...<\/title>\n<meta name=\"description\" content=\"Analog Devices, Inc., qui a acquis r\u00e9cemment Linear Technology Corporation, annonce le LT8362, un convertisseur DC\/DC, \u00e9l\u00e9vateur, \u00e0 mode courant, 2MHz,...\" \/>\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\/146514\/\" \/>\n<meta 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