{"id":4280,"date":"2017-03-09T00:00:24","date_gmt":"2017-03-08T15:00:24","guid":{"rendered":"http:\/\/micro.rohm.com\/cn\/techweb\/?p=4280"},"modified":"2022-09-19T16:45:49","modified_gmt":"2022-09-19T08:45:49","slug":"%e9%9b%bb%e6%ba%90ic%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%82%b7%e3%83%bc%e3%83%88%e3%81%ae%e8%aa%ad%e3%81%bf%e6%96%b9%ef%bc%9a%e8%a1%a8%e7%b4%99%e3%80%81%e3%83%96%e3%83%ad%e3%83%83%e3%82%af%e5%9b%b3","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1091","title":{"rendered":"\u7535\u6e90IC\u6280\u672f\u89c4\u683c\u7684\u89e3\u8bfb\u65b9\u6cd5\uff1a\u5c01\u9762\u3001\u6846\u56fe\u3001\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6"},"content":{"rendered":"<p>\u7406\u89e3\u5f00\u5173\u7a33\u538b\u5668\u7684\u7279\u6027\u548c\u8bc4\u4f30\u65b9\u6cd5\u540e\uff0c\u7535\u6e90IC\u7684\u6280\u672f\u89c4\u683c\u89e3\u8bfb\u975e\u5e38\u91cd\u8981\u3002\u8fd1\u5e74\u6765\u4e00\u822c\u7684\u7535\u6e90\u8bbe\u8ba1\u662f\u6307\u9488\u5bf9\u7535\u6e90IC\u7684\u4f9d\u8d56\u5ea6\u5ea6\u4e4b\u9ad8\uff0c\u5b9e\u8d28\u4e0a\u662f\u4ee5\u7535\u6e90IC\u4e3a\u4e2d\u5fc3\u8fdb\u884c\u8bbe\u8ba1\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0d\u8bfb\u7535\u6e90IC\u7684\u6280\u672f\u89c4\u683c\u5c31\u65e0\u6cd5\u8bbe\u8ba1\u3002<\/p>\n<p>\u672c\u7ae0\u5c06\u8bf4\u660e\u6280\u672f\u89c4\u683c\u7684\u4ee3\u8868\u9879\u76ee\uff0c\u4e0d\u8fc7\u7531\u4e8e\u9879\u76ee\u4f17\u591a\uff0c\u5c06\u5206\u6210\u51e0\u4e2a\u90e8\u5206\u6765\u8bf4\u660e\u3002\u672c\u9879\u5c06\u8bf4\u660e\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762\u3001IC\u7684\u529f\u80fd\u56fe\u793a\u6846\u56fe\u4ee5\u53ca\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6\u3002<\/p>\n<div class=\"box-line\"> <strong>\uff1c\u5f00\u5173\u7a33\u538b\u5668\u7684\u7279\u6027\u548c\u8bc4\u4f30\u65b9\u6cd5\uff1e<\/strong>\r\n\t<ul class=\"line-none\">\r\n\t\t<li style=\"list-style-type:none;\"><span style=\"font-weight:bold;\"><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1168\">1. \u5f00\u5173\u7a33\u538b\u5668\u7684\u57fa\u7840<\/a><\/span>\r\n\t\t\t<ul style=\"margin-left: 30px;\">\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/691\">\u5f00\u5173\u7a33\u538b\u5668\u7684\u79cd\u7c7b<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/696\">\u964d\u538b\u5de5\u4f5c\u539f\u7406<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/827\">\u540c\u6b65\u5f0f\u548c\u5f02\u6b65\u5f0f\u7684\u533a\u522b<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/829\">\u81ea\u4e3e<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/859\">\u8f93\u51fa\u53cd\u9988\u63a7\u5236\u65b9\u5f0f<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/897\">PWM\u548cPFM<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/986\">\u91cd\u8981\u7279\u6027\uff0dIC\u7684\u89c4\u683c<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1078\"><\/a>\u91cd\u8981\u7279\u6027\uff0d\u7535\u6e90\u7279\u6027<\/li>\r\n\t\t\t<\/ul>\r\n\t\t<\/li>\r\n\t\t<li style=\"list-style-type:none;\"><span style=\"font-weight:bold;\">2. \u7535\u6e90IC\u6280\u672f\u89c4\u683c\u7684\u89e3\u8bfb\u65b9\u6cd5<\/span>\r\n\t\t\t<ul style=\"margin-left: 30px;\">\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1091\">\u5c01\u9762\u3001\u6846\u56fe\u3001\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1238\">\u7535\u6c14\u7279\u6027\u7684\u8981\u70b9<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1273\">\u7279\u6027\u56fe\u8868\u3001\u6ce2\u5f62\u7684\u770b\u56fe\u65b9\u6cd5<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1319\">\u5e94\u7528\u7535\u8def\u4f8b<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1378\">\u90e8\u4ef6\u9009\u5b9a<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1416\">\u8f93\u5165\u7b49\u6548\u7535\u8def<\/a><\/li>\r\n\t\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_sr\/dcdc_sr01\/1462\">\u5bb9\u8bb8\u635f\u8017<\/a><\/li>\r\n\t\t\t<\/ul>\r\n\t\t<\/li>\r\n\t\t<li style=\"list-style-type:none;\"><span style=\"font-weight:bold;\">3. \u5f00\u5173\u7a33\u538b\u5668\u7684\u8bc4\u4f30<\/span>\r\n\t\t\t<ul style=\"margin-left: 30px;\">\r\n\t\t\t\t<li>\u8f93\u51fa\u7535\u538b<\/li>\r\n\t\t\t\t<li>\u8d1f\u8f7d\u8c03\u8282<\/li>\r\n\t\t\t\t<li>\u8d1f\u8f7d\u54cd\u5e94\u7684\u63a2\u8ba8\u3001\u6d4b\u91cf\u65b9\u6cd5<\/li>\r\n\t\t\t\t<li>\u7535\u611f\u7535\u6d41\u7684\u6d4b\u91cf<\/li>\r\n\t\t\t\t<li>\u6548\u7387\u7684\u6d4b\u91cf<\/li>\r\n\t\t\t<\/ul>\r\n\t\t<\/li>\r\n\t<\/ul>\r\n<\/div>\r\n\n<p><strong>\u30fb\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762<\/strong><br \/>\n\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762\u9664\u4e86\u5176\u7535\u6e90IC\u7684\u6982\u8ff0\u3001\u7279\u957f\u3001\u7528\u9014\u7b49\u4e4b\u5916\uff0c\u4e5f\u8bb0\u8f7d\u4e86\u6700\u521d\u5e94\u77e5\u9053\u7684\u79cd\u79cd\u4e8b\u9879\u3002\u8bb0\u8f7d\u7684\u9879\u76ee\u6216\u987a\u5e8f\u4f1a\u56e0\u5382\u5546\u800c\u6709\u4e9b\u5fae\u5dee\u5f02\uff0c\u4e0d\u8fc7\u57fa\u672c\u4e0a\u6240\u6db5\u76d6\u7684\u9879\u76ee\u5927\u81f4\u76f8\u540c\u3002\u4f46\u662f\uff0c\u4ece\u5185\u5bb9\u76f8\u5173\u7ec6\u8282\u6216\u6700\u521d\u5e94\u77e5\u9053\u7684\u9879\u76ee\u7b49\u53ef\u4ee5\u9690\u7ea6\u770b\u51fa\u5382\u5546\u7684\u59ff\u6001\u6216\u7279\u5f81\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762\u662f\u76f8\u5f53\u91cd\u8981\u7684\u4e00\u9875\u3002\u4ee5\u4e0b\u8ff0\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762\u4e3a\u4f8b\uff0c\u9996\u5148\u4ece\u201c\u6807\u9898\u201d\u53ef\u4ee5\u5927\u81f4\u660e\u767d\u4f55\u79cd\u7535\u6e90IC\u3002\u800c\u4e14\uff0c\u201c\u6982\u8ff0\u201d\u66f4\u6709\u7a0d\u5fae\u5177\u4f53\u7684\u8bf4\u660e\uff0c\u201c\u7279\u957f\u201d\u5219\u8fdb\u4e00\u6b65\u5206\u6761\u5217\u4e3e\uff0c\u660e\u793a\u6240\u642d\u8f7d\u7684\u529f\u80fd\u6216\u4ee3\u8868\u6027\u89c4\u683c\u3002\u6b64\u5916\uff0c\u672c\u6280\u672f\u89c4\u683c\u4e2d\u4e5f\u6709\u201c\u91cd\u8981\u7279\u6027\u201d\u4e00\u9879\uff0c\u5217\u51fa\u7535\u6e90IC\u9996\u5148\u5e94\u8be5\u786e\u8ba4\u7684\u89c4\u683c\uff0c\u5c31\u7b97\u6ca1\u6709\u8be6\u7ec6\u7684\u89c4\u683c\u503c\u8868\u4e5f\u53ef\u4ee5\u77e5\u9053\u6700\u4f4e\u9650\u5ea6\u7684\u5fc5\u8981\u57fa\u672c\u9879\u76ee\u503c\u3002\u5c01\u88c5\u4fe1\u606f\u3001\u5b89\u88c5\u7a7a\u95f4\u7b49\u793a\u610f\u56fe\u4e5f\u5f88\u5fc5\u8981\u3002\u800c\u4e14\uff0c\u6240\u793a\u7528\u9014\u7684\u4f8b\u548c\u57fa\u672c\u5e94\u7528\u7535\u8def\u53ef\u4ee5\u8003\u8651\u662f\u5426\u4f7f\u7528\u4e8e\u8981\u8bbe\u8ba1\u7684\u8bbe\u5907\uff0c\u4ece\u7535\u8def\u4e86\u89e3\u5fc5\u8981\u7684\u5916\u7f6e\u90e8\u4ef6\u3001\u90e8\u4ef6\u6570\u91cf\u3001\u90e8\u4ef6\u5c3a\u5bf8\u793a\u610f\u56fe\u3002\u6700\u540e\uff0c\u6700\u4e0b\u65b9\u663e\u793a\u7845\u5355\u7247IC\u975e\u8010\u653e\u5c04\u7ebf\u8bbe\u8ba1\u3002\u5728\u5f00\u59cb\u70b9\u4e8b\u5148\u53d6\u5f97\u8fd9\u4e9b\u4fe1\u606f\u7684\u8bdd\uff0c\u5f80\u540e\u7684\u95ee\u9898\u5c31\u4f1a\u5c11\u4e00\u4e9b\u3002<\/p>\n<p class=\"text-c\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1098\" src=\"\/upload\/2017\/03\/7D_dstop2.gif\" alt=\"7D_dstop\" width=\"570\" height=\"865\"><\/p>\n<p class=\"text-c\"><a href=\"https:\/\/rohmfs.rohm.com\/en\/products\/databook\/datasheet\/ic\/power\/switching_regulator\/bd9a300muv-e.pdf\" target=\"_blank\" rel=\"noopener\">2.7V\uff5e5.5V\u8f93\u5165 3A \u5185\u7f6eMOSFET 1ch \u540c\u6b65\u6574\u6d41\u964d\u538b DC\/DC\u8f6c\u6362\u5668 \u2013 BD9A300MUV<\/a><\/p>\n<p>\u6280\u672f\u89c4\u683c\u7684\u5c01\u9762\u867d\u7136\u53ef\u4ee5\u5feb\u901f\u638c\u63e1\u6982\u8ff0\uff0c\u4e0d\u8fc7\u8fd8\u662f\u6709\u5f88\u591a\u6ce8\u610f\u9700\u8981\u638c\u63e1\u3002<\/p>\n<p>\u9996\u5148\uff0c\u8bb0\u8f7d\u7684\u7279\u6027\u503c\u6ca1\u6709\u660e\u8bb0\u662f\u5426\u4e3a\u6700\u5927\u503c\u6216\u6700\u5c0f\u503c\u7b49\u4fdd\u8bc1\u503c\u3001\u6807\u51c6\u503c\uff08Typ\uff09\u65f6\uff0c\u5fc5\u987b\u4ee5\u89c4\u683c\u503c\u8868\u786e\u8ba4\u3002\u4ee5\u5c01\u9762\u6240\u4e66\u5199\u7684\u503c\u5f00\u59cb\u8bbe\u8ba1\u540e\uff0c\u7531\u4e8e\u8be5\u9879\u76ee\u53ea\u6709\u6807\u51c6\u503c\u6ca1\u6709\u4fdd\u8bc1\u503c\u800c\u5bfc\u81f4\u8bbe\u8ba1\u969c\u788d\u7684\u60c5\u51b5\u65f6\u6709\u8033\u95fb\u3002<\/p>\n<p>\u6700\u540e\uff0c\u8bf7\u52a1\u5fc5\u8bb0\u5f97\u5728\u89c4\u683c\u503c\u8868\u6216\u529f\u80fd\u8bf4\u660e\u4e00\u9879\u4e2d\u786e\u8ba4\u7ec6\u8282\u3002<\/p>\n<div class=\"fBox\">\n<div class=\"fl\" style=\"width: 230px;\"><strong>\u30fb\u6846\u56fe<\/strong><\/p>\n<p>\u6280\u672f\u89c4\u683c\u5927\u591a\u6709\u520a\u8f7d\u56fe\u6807\u8be5IC\u5185\u90e8\u6784\u9020\u7684\u6846\u56fe\u3002\u6846\u56fe\u53ef\u4ee5\u6982\u7565\u77e5\u9053\u5185\u90e8\u6709\u4f55\u79cd\u529f\u80fd\u6a21\u5757\u3001\u4ee5\u4f55\u79cd\u6d41\u52a8\u8f93\u51fa\u7b49\u3002\u6b64\u5916\uff0c\u6846\u56fe\u4e00\u822c\u4f1a\u4f34\u968f\u5404\u529f\u80fd\u6a21\u5757\u7684\u5de5\u4f5c\u8bf4\u660e\u6216\u5f15\u811a\u7684\u529f\u80fd\u8bf4\u660e\u3002\u8fd9\u4e9b\u662f\u4e86\u89e3\u5de5\u4f5c\u7684\u91cd\u8981\u4fe1\u606f\uff0c\u4ee5\u4e0b\u4e3a\u793a\u4f8b\u3002<\/p>\n<\/div>\n<div class=\"fr\" style=\"width: 400px;\"><img loading=\"lazy\" decoding=\"async\" src=\"\/upload\/2017\/03\/7D_block1.jpg\" alt=\"7D_block\" width=\"400\" height=\"295\" class=\"size-full wp-image-1097\"><\/div>\n<\/div>\n<p class=\"text-c\"><img decoding=\"async\" src=\"\/upload\/2017\/03\/7D_block_discr1-e1414556723112.gif\" alt=\"7D_block_discr\" width=\"710\" class=\"size-full wp-image-1213\"><\/p>\n<p class=\"text-c\"><img decoding=\"async\" src=\"\/upload\/2017\/03\/7D_block_pin-e1414647323749.gif\" alt=\"7D_block_pin\" width=\"642\" class=\"size-full wp-image-1216\"><\/p>\n<p><strong>\u30fb\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6<\/strong><br \/>\n\u6280\u672f\u89c4\u683c\u6709\u65f6\u4f1a\u663e\u793a\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6\u3002\u4ee5\u4e0b\u662f\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u7684\u5b9a\u4e49\u548c\u63a8\u8350\u5de5\u4f5c\u6761\u4ef6\u7684\u793a\u610f\u56fe\u3002<\/p>\n<p class=\"ml30\">\n<strong>\u25c6\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u7684\u5b9a\u4e49\uff08\u4f9d\u636eJIS C 7032\uff09<\/strong><br \/>\n\u5373\u4f7f\u4e00\u77ac\u95f4\u4e5f\u4e0d\u80fd\u8d85\u8fc7\u7684\u754c\u9650\u503c\uff0c\u800c\u4e14\u5982\u679c\u6709\u89c4\u5b9a2\u9879\u76ee\u4ee5\u4e0a\u89c4\u683c\u503c\u65f6\uff0c\u4efb\u4f552\u4e2a\u9879\u76ee\u90fd\u4e0d\u5f97\u540c\u65f6\u5230\u8fbe\u7684\u754c\u9650\u503c\u3002<\/p>\n<p class=\"ml30\">\n<strong>\u25c6\u63a8\u8350\u5de5\u4f5c\u8303\u56f4<\/strong><br \/>\n\u6b64\u4e3a\u4fdd\u8bc1\u6b63\u5e38\u5de5\u4f5c\u7684\u89c4\u5b9a\uff0c\u4f7f\u7528\u4e0a\u5fc5\u987b\u786e\u5b9e\u9075\u5b88\u8fd9\u79cd\u6761\u4ef6\u3002\u4e0e\u4fdd\u8bc1\u89c4\u683c\u503c\u7684\u6761\u4ef6\u4e0d\u540c\u3002<\/p>\n<p>\u5982\u679c\u4ee5\u8f93\u5165\u7535\u538b\u4e3a\u4f8b\uff0c\u5219\u7edd\u5bf9\u6700\u5927\u989d\u5b9a\u662f\u201c\u53ef\u4ee5\u8f93\u5165\u7684\u7535\u538b\uff0c\u4f46\u4e0d\u7a33\u5b9a\u8981\u5de5\u4f5c\u201d\u3002\u6b64\u5916\uff0c\u989d\u5b9a\uff0c\u6545\u6b64\u6570\u503c\u6ca1\u6709\u5bb9\u8bb8\u5dee\u6216\u5b9e\u529b\u503c\u7b49\u6982\u5ff5\u3002\u6b64\u5916\uff0c\u867d\u7136\u4e00\u8d85\u8fc7\u4fbf\u6709\u635f\u574f\u7684\u53ef\u80fd\u6027\uff0c\u4e0d\u8fc7\u5e76\u6ca1\u6709\u63d0\u793a\u4f1a\u635f\u574f\u7684\u503c\u3002\u603b\u4e4b\uff0c\u662f\u4e0d\u5f97\u4ee5\u65e0\u6761\u4ef6\u8d85\u8fc7\u7684\u503c\u3002<\/p>\n<p>\u63a8\u8350\u5de5\u4f5c\u8303\u56f4\u867d\u8bf4\u662f\u201c\u63a8\u8350\u201d\uff0c\u4f46\u7531\u4e8e\u201c\u5fc5\u987b\u786e\u5b9e\u9075\u5b88\u201d\uff0c\u56e0\u6b64\u60f3\u5fc5\u8bb8\u591a\u4eba\u4e5f\u96be\u4ee5\u7406\u89e3\u3002\u5c3d\u7ba1\u4f17\u8bf4\u7eb7\u7ead\uff0c\u7136\u800c\u82f1\u8bed\u7cfb\u5382\u5546\u7684\u6280\u672f\u89c4\u683c\u6807\u793a\u76f8\u540c\u4e3b\u65e8\u7684\u6761\u4ef6\u6216\u6570\u503c\u4f5c\u4e3aRecommended 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