{"id":227478,"date":"2013-07-02T22:00:00","date_gmt":"2013-07-02T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateur-buck-synchrone-pour-applications-automobiles\/"},"modified":"2013-07-02T22:00:00","modified_gmt":"2013-07-02T22:00:00","slug":"regulateur-buck-synchrone-pour-applications-automobiles","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateur-buck-synchrone-pour-applications-automobiles\/","title":{"rendered":"R\u00e9gulateur Buck synchrone pour applications automobiles"},"content":{"rendered":"

Ce régulateur PWM, à fréquence ajustable et à fort courant de sortie intègre un MOSFET high-side canal P et un MOSFET low-side canal N. Il incorpore un contrôle en mode courant pour fournir une compensation simple, une excellente stabilité de boucle et une réponse rapide aux transitions.
\nCe circuit se caractérise également par une fréquence de commutation ajustable extérieurement de 250 kHz à 2 MHz, un temps de Soft-Start défini extérieurement pour minimiser le pic de courant, une entrée Enable\/Synchronisation pour démarrer la tension de sortie et\/ou synchroniser la fréquence de commutation PWM, et une sortie Power OK qui indique quand la tension de sortie est dans la limite de la régulation. Son courant de contrôle en mode sommeil ne dépasse pas 3 µA.
\nSes protections incluent le verrouillage de sous-tension sur l’entrée, les protections en sur-courant cycle par cycle, en court-circuit en mode Hiccup, en surtension et en dépassement de température. De plus, ce régulateur fournit des protections contre le circuit ouvert, le court-circuit patte adjacente et la protection à la masse sur chaque patte permettant ainsi de satisfaire les applications automobiles les plus contraignantes.
\nCe composant est proposé en boîtier eMSOP à 10 broches, suffixe LY, avec semelle métallique pour une meilleure dissipation thermique, et compatible RoHS. Il fonctionne dans la gamme de température de -40 °C à +125 °C.<\/p>\n

www.allegromicro.com\/A8650<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Qualifi\u00e9 AEC Q100, le r\u00e9gulateur Buck synchrone robuste A8650 d\u2019Allegro MicroSystems est con\u00e7u pour des applications d\u2019alimentations de puissance automobile telles que tableaux de bord, commande de climatisation, navigation et syst\u00e8mes audio. Il utilise une compensation externe pour s\u2019accommoder \u00e0 une large gamme de composants de puissance et, ainsi, optimiser le temps de r\u00e9ponse sans sacrifier \u00e0 la stabilit\u00e9. Il r\u00e9gule des tensions d\u2019entr\u00e9es de 2.5 V \u00e0 5.5 V pour des tensions de sorties aussi basse que 0.8 V avec un courant de sortie minimum de 2 A.<\/p>\n","protected":false},"author":22,"featured_media":227479,"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-227478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"R\u00e9gulateur Buck synchrone pour applications automobiles ...<\/title>\n<meta name=\"description\" content=\"Qualifi\u00e9 AEC Q100, le r\u00e9gulateur Buck synchrone robuste A8650 d\u2019Allegro MicroSystems est con\u00e7u pour des applications d\u2019alimentations de puissance...\" \/>\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\/227478\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9gulateur Buck synchrone pour applications automobiles\" \/>\n<meta property=\"og:description\" content=\"Qualifi\u00e9 AEC Q100, le r\u00e9gulateur Buck synchrone robuste A8650 d\u2019Allegro MicroSystems est con\u00e7u pour des applications d\u2019alimentations de puissance automobile telles que tableaux de bord, commande de climatisation, navigation et syst\u00e8mes audio. Il utilise une compensation externe pour s\u2019accommoder \u00e0 une large gamme de composants de puissance et, ainsi, optimiser le temps de r\u00e9ponse sans sacrifier \u00e0 la stabilit\u00e9. 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