{"id":2113,"date":"2021-12-19T15:39:00","date_gmt":"2021-12-19T07:39:00","guid":{"rendered":"https:\/\/22ya4u4yz3u0.wpsite.pro\/?p=2113"},"modified":"2024-09-10T13:27:32","modified_gmt":"2024-09-10T05:27:32","slug":"ec1741","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/cn\/dc-converter-buck\/ec1741\/","title":{"rendered":"EC1741\uff5c40Vin 2 Outputs Buck Controller"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC1741_9L31N-Rev.F001.pdf\" download=\"EC1741_9L31N-Rev.F001.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">General Description<\/h3>\n\n\n\n<p>EC1741 is a Synchronous Buck Controller with two current sense pins suitable for many multi\u00adoutput applications.<\/p>\n\n\n\n<p>It is designed to allow for operating a wide supply voltage range from 6V to 40V.<\/p>\n\n\n\n<p>It has both high\u00adside and low\u00adside drivers allowing synchronous configuration using two external power\u00adNMOS\u3002<\/p>\n\n\n\n<p>This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes. EC1741 operates as a Buck Controller providing a wide range of outputs at Constant Voltage (CV) from 6V to 40V and the output current as high as 10A or above.<\/p>\n\n\n\n<p>It has a Constant Current (CC) mode so that output current can be set externally and at an accuracy of \u00b14%.<\/p>\n\n\n\n<p>The current mode control and external compensation makes feedback control have good line and load regulation with flexible external design.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>\u25c6Vin: 6V to 40V, UVLO=5.5V+0.5V<br>\u25c6Vout: 3V to 28V; typical at 5V<br>\u25c6Precision CC\/CV Mode Control<br>\u25c6Burst\/PFM Mode for Increased Light Load Efficiency<br>\u25c62 outputs independent Constant Current setting<br>\u25c6Hiccup mode when output voltage below 50% normal output voltage<br>\u25c6Protection:<br>NMOS peak current limit: accuracy\uff1a~20%<br>Output short protection: reduce input current to less than 20mA (RMS)<br>Output FB OVP (125% VFB), only turn off High side MOS.<br>Temperature shutdown (OTP)<br>\u25c6 Adjustable Output Cable Resistance Compensation<br>\u25c6 Duty: 0~98% (Toff_min=100ns, Dead\u00adtime=25~35ns)<br>\u25c6Switching Frequency: 125k+25k<br>\u25c6Integrated MOSFET Drivers<br>\u25c6QFN12L Package<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<p>\u25c6Car Charger<br>\u25c6High\u00adBrightness Lighting<br>\u25c6General\u00adPurpose DC\/DC Application<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<iframe src=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC1741_9L31N-Rev.F001.pdf\" width=\"640\" height=\"1000\" allow=\"autoplay\"><\/iframe>\n\n\n\n<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC1741_9L31N-Rev.F001.pdf\" download=\"EC1741_9L31N-Rev.F001.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u898f\u683c\u66f8\u4e0b\u8f09 General Description EC1741 is a Synchronous Buck  [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"slim_seo":{"description":"EC1741 is a Synchronous Buck Controller with two current sense pins suitable for many multi\u00adoutput applications. It is designed to allow for operating a wide supply voltage range from 6V to 40V. It has both high\u00adside and low\u00adside drivers allowing synchronous configuration using two external power\u00adNMOS\u3002This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes. EC1741 operates as a Buck Controller providing a wide range of outputs at Constant Voltage (CV) from 6V to 40V and the output current as high as 10A or above. It has a Constant Current (CC) mode so that output current can be set externally and at an accuracy of \u00b14%. The current mode control and external compensation makes feedback control have good line and load regulation with flexible external design.","title":"EC1741\uff5c40Vin 2 Outputs Buck Controller - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[12],"tags":[],"class_list":["post-2113","post","type-post","status-publish","format-standard","hentry","category-dc-converter-buck"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/2113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/comments?post=2113"}],"version-history":[{"count":2,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/2113\/revisions"}],"predecessor-version":[{"id":17332,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/2113\/revisions\/17332"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/media?parent=2113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/categories?post=2113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/tags?post=2113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}