{"id":231904,"date":"2015-01-08T23:00:00","date_gmt":"2015-01-08T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateur-buck-3-0-a-qualifie-automobile\/"},"modified":"2015-01-08T23:00:00","modified_gmt":"2015-01-08T23:00:00","slug":"regulateur-buck-3-0-a-qualifie-automobile","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateur-buck-3-0-a-qualifie-automobile\/","title":{"rendered":"R\u00e9gulateur Buck 3.0 A, qualifi\u00e9 automobile"},"content":{"rendered":"<p>Con&ccedil;u pour r&eacute;pondre aux exigences des alimentations des futures g&eacute;n&eacute;rations de syst&egrave;mes audio et d&rsquo;info-divertissement, ce circuit assure le contr&ocirc;le et la protection du r&eacute;gulateur 3.0 A et supporte les larges variations de la tension de batterie. Il peut &eacute;galement &ecirc;tre utilis&eacute; dans les applications tableau de bord ou console centrale ainsi que dans les syst&egrave;mes avanc&eacute;s d&rsquo;aide &agrave; la conduite.<br \/>\nCe r&eacute;gulateur utilise une modulation d&rsquo;impulsion en fr&eacute;quence (PFM) autorisant une consommation d&rsquo;entr&eacute;e de moins de 50 &micro;A &agrave; 12 V pour une sortie &agrave; 3.3 V\/ 40 &micro;A. Apr&egrave;s la mise sous tension, il fonctionne avec une tension d&rsquo;entr&eacute;e aussi basse que 3.6 V (valeur descendante) et r&eacute;gule la tension de sortie avec une pr&eacute;cision de +\/-1%.<br \/>\nSes autres fonctionnalit&eacute;s sont le contr&ocirc;le du mode PWM\/PFM et la possibilit&eacute; de synchroniser la fr&eacute;quence PWM avec une horloge externe. Une entr&eacute;e &quot;sleep&quot; est int&eacute;gr&eacute;e pour un mode veille ultra basse consommation.<br \/>\nLe circuit poss&egrave;de une compensation externe pour fonctionner sur une large gamme de fr&eacute;quence et de valeurs de composants externes. Il fournit un signal de remise &agrave; z&eacute;ro valid&eacute; par la tension de sortie. Ses nombreuses protections incluent une limitation de courant &quot;pulse by pulse&quot;, une protection de court-circuit &quot;hiccup mode&quot;, une protection de la diode asynchrone circuit ouvert\/court-circuit, une protection de la tension de &quot;boot&quot; circuit ouvert\/court-circuit, un monitoring de la sous-tension d&rsquo;entr&eacute;e, une protection de surtension de la sortie et une protection thermique.<br \/>\nCe composant est propos&eacute; en boitier TSSOP 16 broches avec une semelle thermique. Il est garanti sans plomb avec un &eacute;tamage 100% &agrave; l&rsquo;&eacute;tain mat.<\/p>\n<p><a title=\"www.allegromicro.com\" href=\"http:\/\/www.allegromicro.com\/\" target=\"_blank\" rel=\"noopener\">www.allegromicro.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Etendant sa famille de r\u00e9gulateurs qualifi\u00e9s automobile selon le standard AEC-Q100, l\u2019A8590 d\u2019Allegro MicroSystems est un r\u00e9gulateur Buck asynchrone 3.0 A \u00e0 large tension d\u2019entr\u00e9e et \u00e0 faible chute de tension, offrant un fonctionnement am\u00e9lior\u00e9 dans les modes ralenti\/arr\u00eat\/d\u00e9marrage.<\/p>\n","protected":false},"author":22,"featured_media":231905,"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-231904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateur Buck 3.0 A, qualifi\u00e9 automobile ...<\/title>\n<meta name=\"description\" content=\"Etendant sa famille de r\u00e9gulateurs qualifi\u00e9s automobile selon le standard AEC-Q100, l\u2019A8590 d\u2019Allegro MicroSystems est un r\u00e9gulateur Buck asynchrone...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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