{"id":120136,"date":"2018-05-28T07:31:44","date_gmt":"2018-05-28T07:31:44","guid":{"rendered":"https:\/\/\/transformateurs-pre-valides-pour-des-applications-convertisseur-dc-dc-push-pull\/"},"modified":"2018-05-28T07:31:44","modified_gmt":"2018-05-28T07:31:44","slug":"transformateurs-pre-valides-pour-des-applications-convertisseur-dc-dc-push-pull","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/transformateurs-pre-valides-pour-des-applications-convertisseur-dc-dc-push-pull\/","title":{"rendered":"Transformateurs pr\u00e9-valid\u00e9s pour des applications convertisseur DC-DC push-pull"},"content":{"rendered":"

Une solution combinant un circuit de commande pSemi ainsi qu\u2019un transformateur facilite la mise en \u0153uvre des convertisseurs isol\u00e9s jusqu’\u00e0 1W g\u00e9n\u00e9ralement utilis\u00e9s pour l’alimentation du secondaire d’une interface de donn\u00e9es isol\u00e9e de type RS232, RS485 ou CAN bus, par exemple. Des versions de transformateurs \u00e0 monter en surface et \u00e0 ins\u00e9rer sont disponibles avec des empreintes industrielles standardis\u00e9es. Les mod\u00e8les SM comprennent des versions pour entr\u00e9es\/sorties 3,3 V\/5 V ou 5 V\/5 V, contre 3,3 V\/3,3 V ou 5 V\/3,3 V pour les DIL. La tension de sortie est sp\u00e9cifi\u00e9e apr\u00e8s la chute de tension de la diode externe. Toutes les versions de transformateurs ont une isolation de 4 kV DC pr\u00e9sentant une construction torique \u00e9troitement contr\u00f4l\u00e9e, d’o\u00f9 un haut rendement, un couplage magn\u00e9tique serr\u00e9 et de faibles interf\u00e9rences \u00e9lectromagn\u00e9tiques. La plage de temp\u00e9rature de fonctionnement va de -40 \u00e0 +85\u00b0C et les mod\u00e8les \u00e0 monter en surface ont un niveau de sensibilit\u00e9 \u00e0 l’humidit\u00e9 (MSL) de 1, de sorte qu’aucune m\u00e9thode de stockage particuli\u00e8re n’est \u00e0 pr\u00e9voir. Les transformateurs SM r\u00e9pondent aux exigences J-STD-020 pour le brasage par refusion avec une temp\u00e9rature de pointe de 245 \u00b0C et une dur\u00e9e maximum au-dessus de la temp\u00e9rature du liquidus (217 \u00b0C) de 100 secondes, de sorte qu’ils sont compatibles avec la plupart des syst\u00e8mes de refusion. <\/p>\n

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

Convertisseur DC-DC 1W r\u00e9gul\u00e9 pour montage en surface<\/a><\/h3>\n

Filtre antiparasite RF miniature\u2028\u2028<\/a><\/h3>\n

Kit Pioneer PSoC 6 WiFi-BT pour l\u2019IdO et les appareils portables personnels<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Murata annonce la sortie de ses transformateurs 782100 con\u00e7us sp\u00e9cialement pour les circuits de commande de convertisseurs DC-DC Peregrine (pSemi) PE22100. <\/p>\n","protected":false},"author":9,"featured_media":120137,"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-120136","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Transformateurs pr\u00e9-valid\u00e9s pour des applications convertisse...<\/title>\n<meta name=\"description\" content=\"Murata annonce la sortie de ses transformateurs 782100 con\u00e7us sp\u00e9cialement pour les circuits de commande de convertisseurs DC-DC Peregrine (pSemi) PE22100....\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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