{"id":2711,"date":"2024-12-13T13:53:20","date_gmt":"2024-12-13T05:53:20","guid":{"rendered":"https:\/\/www.siproin-ic.com\/?p=2711"},"modified":"2025-04-10T11:01:21","modified_gmt":"2025-04-10T03:01:21","slug":"selection-indicators-of-three-terminal-voltage-regulator-78l33","status":"publish","type":"post","link":"https:\/\/www.siproin-ic.com\/fr\/selection-indicators-of-three-terminal-voltage-regulator-78l33\/","title":{"rendered":"\u3010Product Application\u3011Indicateurs de s\u00e9lection du r\u00e9gulateur de tension \u00e0 trois bornes 78L33"},"content":{"rendered":"<ul>\n<li style=\"text-align: left;\">\n<h6><span style=\"color: #000000;\"><strong>Tension<\/strong><\/span><\/h6>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Tension d'entr\u00e9e (tension de r\u00e9sistance) : il s'agit de la plage de tension du 78L33 Vin. Si la tension d'entr\u00e9e est sup\u00e9rieure \u00e0 la tension maximale de fonctionnement du 78L33, elle d\u00e9passera le degr\u00e9 de r\u00e9sistance \u00e0 la tension et sera endommag\u00e9e. Si la tension d'entr\u00e9e est inf\u00e9rieure \u00e0 la tension minimale de fonctionnement du 78L33, le 78L33 ne fonctionnera pas correctement. <\/span><\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2800 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2025\/04\/1734059673096-300x86.png\" alt=\"\" width=\"516\" height=\"148\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2025\/04\/1734059673096-300x86.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2025\/04\/1734059673096-18x5.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2025\/04\/1734059673096.png 700w\" sizes=\"(max-width: 516px) 100vw, 516px\" \/><\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Tension de sortie : se r\u00e9f\u00e8re \u00e0 la valeur de tension de 78L33 Vout, g\u00e9n\u00e9ralement utilis\u00e9e pour alimenter les MCU, les valeurs de tension courantes sont 3,3V, 5,0V, mais a \u00e9galement son application sp\u00e9ciale de valeur de tension r\u00e9glable ; En outre, la pr\u00e9cision de la tension de sortie doit \u00eatre prise en compte, ce qui signifie la valeur d'erreur de la tension de sortie de 78L33.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2802 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059699905-300x86.png\" alt=\"\" width=\"548\" height=\"157\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059699905-300x86.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059699905-18x5.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059699905.png 700w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>\n<h6><span style=\"color: #000000;\"><strong>Actuel<\/strong><\/span><\/h6>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Courant de sortie (Iout) : il s'agit du courant de sortie maximal que le 78L33 peut fournir, afin de garantir que le courant d'alimentation de l'application, s'il d\u00e9passe sa valeur de courant de r\u00e9sistance, entra\u00eenera non seulement une instabilit\u00e9 de la r\u00e9duction de la valeur de la tension de sortie, mais aussi un probl\u00e8me de surpuissance.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2803 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059745393-300x86.png\" alt=\"\" width=\"548\" height=\"157\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059745393-300x86.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059745393-18x5.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059745393.png 700w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Courant de repos (IQ) : il s'agit de la consommation d'\u00e9nergie des circuits internes du 78L33. Le courant de repos (IQ) provient de la broche GND et doit \u00eatre aussi faible que possible dans les applications \u00e0 faible consommation pour r\u00e9duire la consommation d'\u00e9nergie. Le courant de repos est proportionnel \u00e0 la tension d'entr\u00e9e et au courant de sortie, en tenant compte de la tension d'entr\u00e9e et du courant de sortie maximum. Le diagramme suivant montre la relation entre le courant de repos et la tension d'entr\u00e9e.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2804 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-300x152.png\" alt=\"\" width=\"447\" height=\"226\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-300x152.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-1024x517.png 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-768x388.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-1536x776.png 1536w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184-18x9.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059775184.png 1766w\" sizes=\"(max-width: 447px) 100vw, 447px\" \/><\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>\n<h6><span style=\"color: #000000;\">\u00a0Ajustement des lignes<\/span><\/h6>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">R\u00e9gulation de ligne : se r\u00e9f\u00e8re au 78L33 avec les changements de tension d'entr\u00e9e, la quantit\u00e9 de changement de tension de sortie. Lorsque la tension de sortie peut \u00eatre maintenue de mani\u00e8re stable \u00e0 3,3V (la tension d'entr\u00e9e doit \u00eatre sup\u00e9rieure \u00e0 la tension de sortie de 2V), les conditions de test du taux de variation de la r\u00e9gulation de ligne sont Vin=7V~18V, Iout=20mA, et ses sp\u00e9cifications sont comprises entre -150mV ~150mV.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2805 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-300x122.png\" alt=\"\" width=\"536\" height=\"218\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-300x122.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-1024x415.png 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-768x311.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-1536x622.png 1536w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597-18x7.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059826597.png 1837w\" sizes=\"(max-width: 536px) 100vw, 536px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">R\u00e9gulation de la charge : se r\u00e9f\u00e8re \u00e0 la variation de la charge 78L33 ou \u00e0 la variation du courant de sortie, \u00e0 la variation de la tension de sortie. Lorsque la tension d'entr\u00e9e est de 10V, le courant de sortie est compris entre 1mA et 100mA, et la variation de la tension de sortie est comprise entre -100mV et 100mV.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2806 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-300x157.png\" alt=\"\" width=\"476\" height=\"249\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-300x157.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-1024x535.png 1024w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-768x401.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-1536x802.png 1536w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841-18x9.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059856841.png 1906w\" sizes=\"(max-width: 476px) 100vw, 476px\" \/><\/p>\n<p><span style=\"color: #000000;\">\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">R\u00e9ponse transitoire de la charge : Indique la variation maximale de la tension de sortie caus\u00e9e par un changement soudain du courant de charge ou de la tension d'entr\u00e9e. Prenons l'exemple du 78L33 :<\/span><\/p>\n<p><span style=\"color: #000000;\">Variation de la charge : Tension d'entr\u00e9e nominale (dans la plage de tension admissible) Charge de 10mA \u00e0 50mA \u00e0 10mA, 10mA \u00e0 100mA \u00e0 10mA.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2807 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059916243-300x185.png\" alt=\"\" width=\"499\" height=\"308\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059916243-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059916243-768x473.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059916243-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059916243.png 1024w\" sizes=\"(max-width: 499px) 100vw, 499px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2808 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059926053-300x185.png\" alt=\"\" width=\"510\" height=\"314\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059926053-300x185.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059926053-768x473.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059926053-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059926053.png 1024w\" sizes=\"(max-width: 510px) 100vw, 510px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Variation de la tension d'entr\u00e9e : Charge nominale 10mA, la tension d'entr\u00e9e passe brusquement d'une valeur faible \u00e0 une valeur \u00e9lev\u00e9e, puis de nouveau \u00e0 une valeur faible.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2809 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059952175-300x148.png\" alt=\"\" width=\"512\" height=\"253\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059952175-300x148.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059952175-18x9.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734059952175.png 649w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>\n<h6><span style=\"color: #000000;\">Forme d'onde de d\u00e9part avec charge<\/span><\/h6>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Dans le cas de la tension de surtension de la borne d'entr\u00e9e Vin=Vout(s)+3V, la charge choisit 10mA et le courant de sortie maximum (100mA) deux cas.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2810 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060018542-300x265.png\" alt=\"\" width=\"498\" height=\"439\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060018542-300x265.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060018542-14x12.png 14w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060018542.png 344w\" sizes=\"(max-width: 498px) 100vw, 498px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\"><span style=\"font-family: inherit; font-size: inherit;\">\u00a0Iout=10mA\u00a0<\/span><\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2811 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060041465-300x259.png\" alt=\"\" width=\"486\" height=\"419\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060041465-300x259.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060041465-14x12.png 14w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/12\/1734060041465.png 333w\" sizes=\"(max-width: 486px) 100vw, 486px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\u00a0Iout=100mA<\/span><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Tension d'entr\u00e9e (tension de r\u00e9sistance) : il s'agit de la plage de tension du 78L33 Vin. Si la tension d'entr\u00e9e est sup\u00e9rieure \u00e0 la tension maximale de fonctionnement du 78L33, elle d\u00e9passera le degr\u00e9 de r\u00e9sistance \u00e0 la tension et sera endommag\u00e9e. Si la tension d'entr\u00e9e est inf\u00e9rieure \u00e0 la tension minimale de fonctionnement du 78L33, le 78L33 ne fonctionnera pas correctement.<\/p>","protected":false},"author":8,"featured_media":2713,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[62],"tags":[305,298,282,306],"acf":[],"_links":{"self":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts\/2711"}],"collection":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/comments?post=2711"}],"version-history":[{"count":0,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts\/2711\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/media\/2713"}],"wp:attachment":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/media?parent=2711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/categories?post=2711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/tags?post=2711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}