{"id":229880,"date":"2014-04-28T22:00:00","date_gmt":"2014-04-28T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateur-abaisseur-synchrone-fort-courant\/"},"modified":"2014-04-28T22:00:00","modified_gmt":"2014-04-28T22:00:00","slug":"regulateur-abaisseur-synchrone-fort-courant","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateur-abaisseur-synchrone-fort-courant\/","title":{"rendered":"R\u00e9gulateur abaisseur synchrone fort courant"},"content":{"rendered":"

L’A8672 intègre des informations complètes de diagnostique permettant à la plateforme hôte de réagir à une myriade de conditions d’erreur. Une sortie faute indique soit que la température devient inhabituellement haute, soit qu’une défaillance a été détectée, telle que le nœud de commutation en court-circuit à la masse ou bien que la résistance de timing est en circuit ouvert.
\nUne sortie " power OK " est aussi présente après un délai fixe pour indiquer lorsque la tension de sortie est correctement régulée. Un mode de limitation de courant pulse by pulse peut être sélectionné pour éviter de sur-tailler l’inductance devant faire face aux courants de défauts. Ce composant vise les marchés industriels, grand public, et informatiques. Les applications typiques comprennent les serveurs et les systèmes pour réseaux, qui requièrent un abaissement de la tension d’entrée de 5V ou 12V avec de forts courants.
\nL’A8672 est disponible dans un boîtier QFN 28 broches de 4mm x 5mm (suffixe EG) avec une semelle dissipatrice pour améliorer les performances thermiques.<\/p>\n

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

Capable de d\u00e9livrer un fort courant (jusqu’\u00e0 8A) gr\u00e2ce \u00e0 l’utilisation de MOSFETs ayant une faible r\u00e9sistance interne, le r\u00e9gulateur buck synchrone A8672 d’Allegro Microsystems Europe utilise un contr\u00f4le du courant en mode vall\u00e9e qui permet un temps de conduction tr\u00e8s court qui permet d’obtenir un meilleur temps de r\u00e9ponse transitoire pour un sch\u00e9ma classique gr\u00e2ce \u00e0 l’utilisation d’une boucle de retour en tension et une modulation de fr\u00e9quence lors de changements importants du signal de charge.<\/p>\n","protected":false},"author":22,"featured_media":229881,"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-229880","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"R\u00e9gulateur abaisseur synchrone fort courant ...<\/title>\n<meta name=\"description\" content=\"Capable de d\u00e9livrer un fort courant (jusqu'\u00e0 8A) gr\u00e2ce \u00e0 l'utilisation de MOSFETs ayant une faible r\u00e9sistance interne, le r\u00e9gulateur buck synchrone...\" \/>\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\/229880\/\" \/>\n<meta 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