{"id":1292,"date":"2021-12-19T15:08:00","date_gmt":"2021-12-19T07:08:00","guid":{"rendered":"https:\/\/post-ecmos.liho.work\/?p=1292"},"modified":"2024-09-10T13:28:39","modified_gmt":"2024-09-10T05:28:39","slug":"ec1489","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/en\/dc-converter-buck\/ec1489\/","title":{"rendered":"EC1489\uff5c40Vin 6A 2-Outputs Buck Converter"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC1489_9L30N-Rev.F001.pdf\" download=\"EC1489_9L30N-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>EC1489 is a Synchronous Buck Circuit with two current sense pins suitable for many multi\u2010 output applications. It<br>is designed to allow for operating a wide supply voltage range from 4.7V to 40V.<\/p>\n\n\n\n<p>This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes.<\/p>\n\n\n\n<p>EC1489 operates as a Buck Circuit providing a wide range of outputs at Constant Voltage (CV) from 4.7V to 40V<br>and the output current as high as 6A 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<br>with flexible external design.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>\u25c6Vin: 4.7V to 40V<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: NMOS peak current limit: accuracy\uff1a~20% Output short protection: reduce input current to less than<br>20mA (RMS) Output FB OVP (125% VFB), only turn off High side MOS.<br>Temperature shutdown (OTP)<br>\u25c6Adjustable Output Cable Resistance Compensation<br>\u25c6Switching Frequency: 125k+25k<br>\u25c6Integrated Power MOSFET<br>\u25c6QFN32L Package<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<p>\u25c6Car Charger<br>\u25c6High\u2010 Brightness Lighting<br>\u25c6General\u2010 Purpose 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\/EC1489_9L30N-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\/EC1489_9L30N-Rev.F001.pdf\" download=\"EC1489_9L30N-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 EC1489 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":"is designed to allow for operating a wide supply voltage range from 4.7V to 40V.This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes. EC1489 operates as a Buck Circuit providing a wide range of outputs at Constant Voltage (CV) from 4.7V to 40V and the output current as high as 6A 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":"EC1489\uff5c40Vin 6A 2-Outputs Buck Converter - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[12],"tags":[],"class_list":["post-1292","post","type-post","status-publish","format-standard","hentry","category-dc-converter-buck"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/1292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/comments?post=1292"}],"version-history":[{"count":2,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/1292\/revisions"}],"predecessor-version":[{"id":17334,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/1292\/revisions\/17334"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/media?parent=1292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/categories?post=1292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/tags?post=1292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}