快乐赛车网-快乐赛车网址多少

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                          明微推出性价比更高的小功率恒压方案SM7033P
                          来源:互联网 | 作者:中华ic网 | 发表于:2016-07-05
                          在小家电电源、MCU或功能模组供电电源等应用领域,会用到小功率的恒压电源,针对这个应用,明微电子在原有SM7015、SM7035P方案基础上,推出性价比更高的小功率恒压方案SM7033P。

                          快乐赛车网-快乐赛车网址多少 ZHENDUIXIAOJIADIANJIZHINENGZHAOMINGDAIJIDIANYUANDENGYINGYONGLINGYU,MINGWEIDIANZIBUDANYOUSM7015/25/55/75DAGONGLVXILIE,ERQIEZHENDUIXIAOGONGLVDEDAIJIDIANYUANYINGYONG,MINGWEIDIANZIYETUICHUDIANYALINGHUOKEDIAO,ZHICHITIEPIANDIANGANHUOBANGXINGDIANGANDENGDUOZHONGYINGYONGDESM7033/35PDENGFANGAN。ZAIXIAOJIADIANDIANYUAN、MCUHUOGONGNENGMOZUGONGDIANDIANYUANDENGYINGYONGLINGYU,HUIYONGDAOXIAOGONGLVDEHENGYADIANYUAN,ZHENDUIZHEIGEYINGYONG,MINGWEIDIANZIZAIYUANYOUSM7015、SM7035PFANGANJICHUSHANG,TUICHUXINGJIABIGENGGAODEXIAOGONGLVHENGYAFANGANSM7033P。

                          一、SM7033P简介

                          SM7033PSHIYIKUANHENGYAKONGZHIXINPIAN,NEIZHICSJIANLIUDIANZU,QUANDIANYAFANWEIHENGYAJINGDUXIAOYU±3%,WAIWEIYUANJIANSHAO,FANGANCHENGBENDI。JUYOUZIHUIFUDESHUCHUKAIDUANLU、SHUCHUDUANLUBAOHUDENGDUOZHONGBAOHUGONGNENG,YITIGAOXITONGKEKAOXING;WEILEXIAOCHUGAOYAGONGLVGUANZAIKAIQISHUNJIANCHANSHENGDEJIANFENGZAOCHENGDEGANRAO,NEIZHIQIANYANXIAOYINDIANLU,BIMIANXINPIANZAIGONGLVGUANKAIQISHUNJIANCHANSHENGWUDONGZUO。TONGGUODRAINDUANKOUDUIVDDDIANRONGCHONGDIAN,SHIXIANGAOYAZIGONGDIAN,XINPIANTONGGUOFBDUANKOUDIANYAJINXINGTIAOPINKONGZHI,JIDANGXITONGSHUCHUDIANYASHENGGAOSHI,XINPIANGONGZUOPINLVJIANGDI;DANGXITONGSHUCHUDIANYAJIANGDISHI,XINPIANGONGZUOPINLVSHENGGAO,CONGERWENDINGSHUCHUDIANYA,DEDAOGAOHENGYAJINGDU。

                          其中, 分别是反馈网络的下分压电阻、上分压电阻,是输出稳压点,是恒压阈值。

                          二、典型应用

                          快乐赛车网-快乐赛车网址多少 YIDIANXINGDE5V/100mADAIJIDIANYUANFANGANWEILI,XIAMIANSHIFANGANDEDEMOBANYIJIDIANQICANSHU。

                          2.1 DEMO样板

                          SM7033P 5V/100mA

                          2.2 测试参数

                          BUTONGSHURUDIANYABUTONGFUZAIQINGKUANGXIACESHISHUJURUXIA:

                            90Vac 115Vac 230Vac 264Vac 线性调整率
                          空载 5.04V 5.04V 5.04V 5.00V ±0.40%
                          带载25% 5.03V 5.05V 5.02V 5.01V ±0.40%
                          带载50% 5.05V 5.06V 5.03V 5.01V ±0.50%
                          带载75% 5.05V 5.08V 5.05V 5.03V ±0.50%
                          满载 5.01V 5.05V 5.02V 5.00V ±0.50%
                          负载调整率 ±0.40% ±0.40% ±0.30% ±0.30%  

                          LINGWAI,SHUCHUDIANYAWENBOXIAOYU150mV,WUSHUCHUDIANYAGUOCHONG,RONGYIGUOCHUANDAOFUSHEDENGRENZHENG。

                          2.3 PCB layout注意事项

                          MEIGEFANGANXINGNENGDEHAOHUAI,BUDANYUKONGZHIXINPIANHEWAIWEIYUANJIANYOUGUAN,ERQIEPCBSHEJIDEHAOHUAIYEYOUHENDADEGUANXI,ZAIPCBDESHEJIZHONG,QINGZHUYIYIXIAJIGEWENTI:

                          快乐赛车网-快乐赛车网址多少  CHUJIHUANLUYUCIJIHUANLUDEZOUXIANJULIJINLIANGCUERDUAN,YIBIANGENGRONGYITONGGUOEMCCESHI。

                          快乐赛车网-快乐赛车网址多少  GAOYAXINHAOYUDIYAXINHAOFENKAIZOUXIAN,BIMIANGAOYAXINHAODUIDIYAFANKUIXINHAOCHANSHENGGANRAO。

                          XINPIANVDDJIFBDEDIJINLIANGKAOJINXINPIANDEGND。ICDE7、8JIAOGNDXUYAOPUTONGCHULI,PUTONGMIANJIJIANYIDAYU8*8mm,YIJIANGDIXINPIANDEWENDU。

                          小结

                          ZHENDUIXIAOJIADIANJIZHINENGZHAOMINGDAIJIDIANYUANDENGYINGYONGLINGYU,MINGWEIDIANZIBUDANYOUSM7015/25/55/75DAGONGLVXILIE,ERQIEZHENDUIXIAOGONGLVDEDAIJIDIANYUANYINGYONG,MINGWEIDIANZIYETUICHUDIANYALINGHUOKEDIAO,ZHICHITIEPIANDIANGANHUOBANGXINGDIANGANDENGDUOZHONGYINGYONGDESM7033/35PDENGFANGAN。RUOFANGANDESHUCHUDIANLIUBUCHAOGUO150mA,TUIJIANYOUXUANSM7033PHENGYAFANGAN;DANGDIANLIUDAYU150mA,XIAOYU250mASHI,TUIJIANYOUXUANSM7035PFANGAN。

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