【经验】LDO使用时电源纹波高温时比常温时要高,如何解决?
随着人们生活水平的提高,大家对电子产品的要求也越来越严格,尤其对高质量广播的需求日益强烈。鉴于此,我们决定设计一款具有高质量广播系统的产品,这样的产品不仅需要选择一颗高可靠性的广播解码芯片,而且要注意广播信号的走线,同时要防止产品中其它模块对广播系统造成干扰,特别是通过电源线的串扰。因此,广播解码芯片的电源选择变得尤为重要,一颗高纹波抑制的电源是必须的,为此我们选择NISSHINBO(原理光微电子)的高稳定性LDO R1114D331D。
R1114D331D是一款支持6V以下输入电压,具有良好的动态响应,且精度仅为2%的高可靠性LDO。最主要R1114D331D的纹波抑制比非常出色,非常符合我们上述讲到的设计需求,如图片1所示,在输入电压为3.8V,输出电压为2.8V的应用条件下,该LDO芯片的纹波抑制比在1kHz时高达75dB,在20kHz时为60dB。dB是一个比值,其和电压放大倍数n的转换关系是:dB=20lg(n),也就是说10倍等价于20dB,1000倍等价于60dB,这代表R1114D331D可以把频率为20kHz的输入噪声衰减1000倍。正是这个特性使得R1114D331D非常适合高音质广播产品,能够为广播的解码芯片提供高稳定、低噪声的电源。
图1:R1114D331D的纹波抑制比
问题总揽
在产品的调试阶段,我们发现R1114D331D电源在高温时(环境温度60℃)的输出纹波电压Vpp=62mV,常温时电源纹波电压Vpp=27mV。我们对该LDO电源的要求是纹波电压小于50mV,初步判断其电源在高温时纹波电压不满足要求,甚至是常温时的2倍。R1114D331D的应用电路如下图所示:
图2:R1114D331D的应用电路图
问题分析及解决
为什么R1114D331D的电源纹波高温时比常温时增加2倍?通过查看R1114D331D的规格书,可以发现R1114D331D电源对输出电容的ESR有要求。由下图3可知,当输出电容的ESR在0.01Ω~6Ω之间时,可以保证R1114D331D具有良好的位相余裕度;而当输出电容的ESR小于0.01Ω时,R1114D331D处在不稳定工作状态。由上面的电路图可知,R1114D331D电源的输出端有两个并联的电容:10μF和10nF。通过查看LDO输出电容的ESR数据(如图片4所示),我们发现LDO输出电容的ESR在20kHz以后低于0.01Ω,不满足LDO的要求,导致R1114D331D电源工作在不稳定状态;当温度升高到60℃时,输出电容等效的ESR进一步降低,最终导致LDO输出纹波电压异常。
图3:LDO对输出电容的ESR需求
图4:陶瓷电容的频率特性图
通过以上分析,我们发现导致问题的根本原因就是R1114D331D输出电容的ESR不满足LDO规格书中的规定。因此我们决定删除R1114D331D的10nF输出电容,然后在10μF电容侧串联一个1ohm的电阻,保证输出电容的ESR在LDO的规定之内(0.01Ω~6Ω)。图片5为修改后的电路图,更改后测试R1114D331D电源的纹波电压Vpp=32mV(环境温度60℃),满足我们的设计要求,决定实施此方法。
图5:优化后的R1114D331D的应用电路图
问题总结
综上所述,使用R1114D331D时应考虑输出电容的ESR。同时我们发现Nisshinbo(原理光微电子)的其他系列LDO也对输出电容的ESR也有类似要求,图片6为RP111x系列的LDO对输出电容的ESR的要求。总之,使用Nisshinbo(原理光微电子)的LDO时,如果想要少走弯路,一定要记得考虑LDO的输出电容的ESR。
图6:RP111系列的LDO对输出电容的ESR需求
关于Nisshinbo (日清纺)
原新日本无线(NJR)株式会社和原理光微电子(原RICOH)株式会社已于2022年1月合并,并以⽇清纺微电⼦(Nisshinbo)株式会社的名义运营。日清纺(Nisshinbo)整合两家公司的优势,完善 "连接一切 "的技术,并努力作为一个模拟解决方案的供应商进一步成长和发展,为实现超智能社会做出贡献。
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本文由Jessica_li转载自世强,原文标题为:【技术大神】LDO使用时电源纹波高温时比常温时要高,如何解决?,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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型号- R8154J001C-T1-#E,R8154JXX1*-T1-FE,R8154J301B,R8154XXXXB,R8154XXXXE,R8154XXXXD,R8154XXXXF,R8154X,R8154J301E,R8154X SERIES,R8154S252D,R8154S802D,R8154J301D,R8154X30XX,R8154S252B,R8154S802B,R8154J341B,R8154J301F,R8154J341E,R8154J341D,R8154X34XX,R8154J341F,R8154J801D,R8154X25XX,R8154J801B,R8154SXX2*-E2-FE,R8154S282D,R8154J801F,R8154J801E,R8154SXX2B,R8154J251F,R8154J001C,R8154X80XX,R8154S902D,R8154S902B,R8154S502B,R8154S332D,R8154J251B,R8154S332B,R8154S502D,R8154J251D,R8154SXX2∗-E2-FE,R8154J251E,R8154J901E,R8154J901D,R8154J901B,R8154J501B,R8154J501E,R8154J501D,R8154J901F,R8154X90XX,R8154S852D,R8154S282B,R8154JXX1B,R8154J331B,R8154J501F,R8154S602B,R8154JXX1D,R8154J331D,R8154X50XX,R8154JXX1F,R8154S852B,R8154S602D,R8154J331F,R8154JXX1E,R8154J331E,R8154X33XX,R8154J601B,R8154X28XX,R8154J601E,R8154J851B,R8154J601F,R8154J601D,R8154SXX2B,R8154S302B,R8154J281D,R8154J281E,R8154SXX2D,R8154J281F,R8154X85XX,R8154J851F,R8154X60XX,R8154J851E,R8154S342D,R8154J851D,R8154S342B,R8154S302D,R8154J281B
RP122x Series 400 mA Low Noise and Low Supply Current LDO Regulator
型号- RP122N251B,RP122N481B,RP122N481D,RP122N421B5,RP122N401D,RP122ZXX3∗-TR-F,RP122N401B,RP122K121D,RP122K351D,RP122Z25XB,RP122Z48XB,RP122Z25XD,RP122Z48XD,RP122K121B,RP122K351B,RP122Z40XB,RP122N291D5,RP122Z40XD,RP122X47XX,RP122X24XX,RP122N251D,RP122Z31XD5,RP122N141B,RP122Z13XD,RP122N121D5,RP122Z13XB,RP122N181B5,RP122K231D,RP122K461D,RP122X12XD,RP122Z36XB,RP122Z36XD,RP122K231B,RP122K461B,RP122N301B5,RP122X36XX,RP122X13XX,RP122N371D,RP122N371B,RP122N141D,RP122N241B,RP122N471D,RP122Z41XD,RP122K341D,RP122Z26XB,RP122Z42XD5,RP122Z26XD,RP122K341B,RP122N311B5,RP122K191B,RP122X25XX,RP122X48XX,RP122N481X,RP122Z41XB,RP122K191D,RP122X40XX,RP122N471B,RP122N241D,RP122N131B,RP122N361B,RP122Z14XD,RP122Z14XB,RP122N181D5,RP122K451D,RP122Z37XB,RP122K221B,RP122Z37XD,RP122K451B,RP122K221D,RP122N301D5,RP122X14XX,RP122X37XX,RP122X31XX5,RP122ZXXXX,RP122N131D,RP122N361D,RP122N421D,RP122N421B,RP122N281X,RP122K141B,RP122K371B,RP122X42XX5,RP122X48XD,RP122Z23XB,RP122Z46XB,RP122K141D,RP122K371D,RP122Z23XD,RP122Z46XD,RP122Z42XB5,RP122N311D5,RP122X26XX,RP122Z18XD5,RP122N271D,RP122X41XX,RP122Z12XD5,RP122N271B,RP122K401B,RP122K401D,RP122N311D,RP122N311B,RP122K251B,RP122K481B,RP122Z34XB,RP122K251D,RP122K481D,RP122Z29XD5,RP122Z19XD,RP122Z34XD,RP122NXX1X,RP122Z19XB,RP122K281B5,RP122X38XX,RP122X15XX,RP122K451B5,RP122N391D,RP122X18X∗5,RP122X30XX,RP122Z30XB5,RP122N391B,RP122N161D,RP122N161B,RP122N411D,RP122N411B,RP122N421D5,RP122K361B,RP122K131D,RP122Z24XB,RP122K361D,RP122Z47XB,RP122Z24XD,RP122Z47XD,RP122K131B,RP122Z48XX,RP122X27XX,RP122X42XX,RP122Z31XB5,RP122N261D,RP122X30XX5,RP122N261B,RP122Z12XD,RP122N301D,RP122Z12XB,RP122K481X,RP122N301B,RP122K471B,RP122K241D,RP122X29XX5,RP122Z35XB,RP122K471D,RP122Z35XD,RP122XXXXD,RP122K121B5,RP122K241B,RP122XXXXB,RP122K281D5,RP122X16XX,RP122X39XX,RP122K451D5,RP122X18XX5,RP122X31XX,RP122N151D,RP122N381D,RP122KXX1∗-TR,RP122N151B,RP122N381B,RP122Z30XD5,RP122Z29XB,RP122N441D,RP122Z29XD,RP122K311B,RP122N211D,RP122N441B,RP122N211B,RP122Z21XB,RP122Z44XB,RP122Z21XD,RP122Z44XD,RP122K161B,RP122K391B,RP122Z28XD5,RP122K311D,RP122K301B5,RP122N,RP122K,RP122K291B5,RP122X28XX,RP122K161D,RP122K391D,RP122ZXX1X,RP122N291D,RP122X43XX,RP122N291B,RP122X20XX,RP122Z17XB,RP122K281X,RP122N331D,RP122K421B,RP122N331B,RP122N451B5,RP122Z32XB,RP122Z32XD,RP122K271B,RP122K421D,RP122K121D5,RP122K181B5,RP122Z17XD,RP122K271D,RP122X17XX,RP122Z18XX,RP122XXXXX,RP122X32XX,RP122N181D,RP122N181B,RP122X12XX5,RP122K421B5,RP122N431D,RP122K301B,RP122N201D,RP122N431B,RP122ZXX1∗-TR-F,RP122N201B,RP122X28XD,RP122Z22XB,RP122K151B,RP122X28XX5,RP122Z45XB,RP122Z22XD,RP122K381B,RP122K151D,RP122Z45XD,RP122K301D,RP122K301D5,RP122X29XX,RP122K381D,RP122K291D5,RP122X21XX,RP122X44XX,RP122N281D,RP122Z12XB5,RP122N281B,RP122Z18XB5,RP122N321D,RP122K411B,RP122N321B,RP122N181X,RP122Z33XB,RP122K261B,RP122Z45XD5,RP122Z33XD,RP122K261D,RP122K181D5,RP122Z29XB5,RP122Z18XD,RP122K411D,RP122Z18XB,RP122X18XX,RP122X45XX5,RP122X33XX,RP122KXX1X,RP122N171D,RP122N171B,RP122Z27XD,RP122N231D,RP122N461D,RP122N231B,RP122K421D5,RP122Z42XD,RP122K331B,RP122Z27XB,RP122K331D,RP122K181B,RP122Z28XX,RP122Z42XB,RP122K181D,RP122X45XX,RP122X22XX,RP122N461B,RP122Z15XD,RP122Z38XD,RP122N351B,RP122N121D,RP122Z15XB,RP122N121B,RP122Z45XB5,RP122Z30XD,RP122K211B,RP122K441B,RP122Z38XB,RP122K211D,RP122K441D,RP122K311B5,RP122X19XX,RP122K291B,RP122Z30XB,RP122K291D,RP122N281B5,RP122X34XX,RP122N351D,RP122N451D,RP122X SERIES,RP122Z28XD,RP122N221D,RP122K181X,RP122N451B,RP122N221B,RP122Z43XB,RP122Z20XD,RP122Z43XD,RP122K171B,RP122NXX1∗-TR-FE,RP122K321B,RP122X,RP122Z28XB5,RP122Z28XB,RP122K321D,RP122ZXX3X,RP122K171D,RP122Z20XB,RP122N291B5,RP122X23XX,RP122X46XX,RP122N341D,RP122Z16XB,RP122Z39XD,RP122N341B,RP122K201B,RP122Z31XD,RP122N451D5,RP122K281B,RP122Z,RP122N121B5,RP122K431B,RP122K201D,RP122K311D5,RP122Z39XB,RP122Z16XD,RP122K431D,RP122K281D,RP122N281D5,RP122Z31XB,RP122X12XX,RP122X35XX,RP122N191D,RP122N191B
RP110x SERIES 150mA Low Supply Current LDO REGULATOR
型号- RP110K081D,RP110X08XX,RP110K081B,RP110K081C,RP110LXX1∗-TR,RP110N361D,RP110N131C,RP110N361C,RP110N361B,RP110N131D,RP110L171C,RP110L171D,RP110N131B,RP110L171B,RP110K191C5,RP110L121B5,RP110N241D,RP110N241C,RP110L281D,RP110N241B,RP110L281C,RP110L281B,RP110K191D5,RP110X SERIES,RP110L121C5,RP110N141D,RP110N141B,RP110N141C,RP110L181B,RP110L181C,RP110L181D,RP110K181D5,RP110Q282D5,RP110K191D,RP110Q282B5,RP110K191B,RP110K191C,RP110L121D5,RP110N251D,RP110N251C,RP110N251B,RP110L291C,RP110L291B,RP110L291D,RP110K191B5,RP110Q282C5,RP110Q202B,RP110K291B,RP110K291C,RP110Q202D,RP110K291D,RP110Q202C,RP110K091C5,RP110L151B,RP110N341D,RP110N111C,RP110N341C,RP110N341B,RP110N111D,RP110L151C,RP110L151D,RP110N111B,RP110Q312B,RP110K181B,RP110N281B5,RP110K181C,RP110Q312D,RP110N181D5,RP110K181D,RP110Q312C,RP110K091D5,RP110L261B,RP110N221D,RP110N221C,RP110L261C,RP110N221B,RP110L261D,RP110N181C5,RP110K281B,RP110K281C,RP110K281D,RP110N281C5,RP110Q SERIES,RP110N121D,RP110N351D,RP110N351C,RP110L161D,RP110N121B,RP110N351B,RP110N121C,RP110L161B,RP110L161C,RP110X08XD,RP110X08XB,RP110X08XC,RP110N181B5,RP110NXX1∗-TR-FE,RP110K171B,RP110Q302C,RP110K171C,RP110QXX2B,RP110Q302B,RP110K171D,RP110Q302D,RP110N281D5,RP110K091B5,RP110N231D,RP110N231C,RP110L271D,RP110N231B,RP110L271C,RP110L271B,RP110QXX2C,RP110QXX2D,RP110Q222B,RP110N171C,RP110N171D,RP110K281C5,RP110N171B,RP110L191D5,RP110N091B5,RP110Q222D,RP110Q222C,RP110Q102B,RP110Q332B,RP110Q102C,RP110N281D,RP110N281C,RP110N281B,RP110K281B5,RP110L091D,RP110L091B,RP110L091C,RP110Q102D,RP110Q332D,RP110Q332C,RP110K311C,RP110K311B,RP110K311D,RP110L091B5,RP110Q212C,RP110Q212B,RP110N191D5,RP110N181D,RP110N181B,RP110N181C,RP110N SERIES,RP110Q212D,RP110L091C5,RP110Q322C,RP110N191C5,RP110Q322B,RP110XXXXX,RP110N291D,RP110N291C,RP110N291B,RP110K301B,RP110KXX1D,RP110Q322D,RP110N191B5,RP110K301D,RP110K301C,RP110KXX1C,RP110L091D5,RP110KXX1B,RP110N151C,RP110N151D,RP110N151B,RP110Q122B5,RP110L191B,RP110L191C,RP110L191D,RP110Q242B,RP110Q242D,RP110Q242C,RP110K181B5,RP110X33XX,RP110N261D,RP110X12XX5,RP110N261C,RP110N261B,RP110Q122C5,RP110Q122B,RP110Q352B,RP110K181C5,RP110Q122C,RP110Q122D,RP110Q352D,RP110Q352C,RP110XXXXD,RP110XXXXC,RP110XXXXB,RP110K091C,RP110K091D,RP110K091B,RP110N161D,RP110N161B,RP110N161C,RP110Q122D5,RP110N091D5,RP110Q232C,RP110Q232B,RP110Q232D,RP110Q112B,RP110K281D5,RP110N271D,RP110N271C,RP110N271B,RP110L081B,RP110N091C5,RP110L081C,RP110L081D,RP110Q112C,RP110Q342C,RP110Q112D,RP110Q342B,RP110Q342D,RP110L321C,RP110L321B,RP110L321D,RP110N121B5,RP110K231C,RP110K231D,RP110Q262B,RP110Q262D,RP110Q262C,RP110L281C5,RP110K231B,RP110N091D,RP110L201C,RP110N091B,RP110L201D,RP110N091C,RP110L201B,RP110K121C,RP110K351C,RP110K121D,RP110K351B,RP110Q142B,RP110K351D,RP110Q142C,RP110Q142D,RP110K121B,RP110L281D5,RP110L101B,RP110L331B,RP110L101C,RP110L101D,RP110L331D,RP110L331C,RP110K221D,RP110Q252C,RP110Q252B,RP110Q252D,RP110K221B,RP110K221C,RP110L211B,RP110L211C,RP110L181B5,RP110L211D,RP110K111D,RP110K341D,RP110K341C,RP110Q132B,RP110Q132C,RP110Q362C,RP110Q132D,RP110Q362B,RP110Q362D,RP110K111B,RP110K341B,RP110K111C,RP110X25XX,RP110N191C,RP110L301D,RP110N191D,RP110L301C,RP110L301B,RP110N191B,RP110L181C5,RP110QXX2∗-TR-FE,RP110Q092B5,RP110Q282B,RP110K211B,RP110K211C,RP110Q282D,RP110K211D,RP110Q282C,RP110L181D5,RP110Q092C5,RP110K331D,RP110X36XD,RP110X36XC,RP110Q162B,RP110X36XB,RP110K101B,RP110Q162C,RP110K101C,RP110K331C,RP110Q162D,RP110K101D,RP110K331B,RP110LXX1B,RP110L311D,RP110L311C,RP110L311B,RP110LXX1D,RP110LXX1C,RP110L SERIES,RP110Q092D5,RP110L191B5,RP110N121D5,RP110K201B,RP110Q272C,RP110K201C,RP110Q272B,RP110K201D,RP110Q272D,RP110X36XX,RP110N081C,RP110N081D,RP110N081B,RP110N121C5,RP110L191C5,RP110Q152B,RP110K321B,RP110Q152C,RP110Q152D,RP110K321D,RP110K321C,RP110K271C,RP110K271D,RP110Q192B5,RP110L131C,RP110L361C,RP110KXX1∗-TR,RP110L361B,RP110L131D,RP110L131B,RP110L,RP110N321D,RP110N321C,RP110L361D,RP110N321B,RP110Q,RP110N,RP110K271B,RP110K161C,RP110K161D,RP110Q192C5,RP110L241C,RP110L241D,RP110L241B,RP110Q182D,RP110N201D,RP110N201C,RP110N201B,RP110K161B,RP110Q182C,RP110Q182B,RP110K261D,RP110Q192D5,RP110L141B,RP110L141C,RP110N101D,RP110N331D,RP110Q292D,RP110N331C,RP110L141D,RP110N101B,RP110N331B,RP110N101C,RP110X25XD,RP110K261B,RP110K261C,RP110X25XC,RP110X25XB,RP110Q292C,RP110Q292B,RP110K151D,RP110L251B,RP110L251C,RP110N211D,RP110L251D,RP110N211C,RP110N211B,RP110X28XX5,RP110K151B,RP110K151C,RP110Q172B,RP110Q172D,RP110Q172C,RP110L111B,RP110L341D,RP110L111C,RP110L341C,RP110L341B,RP110L111D,RP110Q092B,RP110Q092C,RP110Q092D,RP110N301D,RP110N301C,RP110N301B,RP110K251B,RP110K251C,RP110K251D,RP110K121D5,RP110Q182B5,RP110L221B,RP110L221C,RP110L221D,RP110K141B,RP110K141C,RP110K141D,RP110Q182C5,RP110L121D,RP110L351D,RP110X,RP110L351C,RP110L121B,RP110L351B,RP110L121C,RP110Q082C,RP110NXX1D,RP110Q082D,RP110NXX1C,RP110NXX1B,RP110N311D,RP110N311C,RP110N311B,RP110K241B,RP110K241C,RP110K241D,RP110K121B5,RP110Q082B,RP110Q182D5,RP110L231D,RP110L231B,RP110L231C,RP110Q192D,RP110Q192C,RP110K131B,RP110K361B,RP110K131C,RP110L281B5,RP110K131D,RP110K36
R8152x Series 1 A 24 V LDO for Automotive Applications
型号- R8152S088B,R8152X031B,R8152S076B,R8152J080B,R8152X140B,R8152S064B,R8152X055B,R8152X043B,R8152J092B,R8152X079B,R8152X067B,R8152S105B,R8152S117B,R8152J145B,R8152J048B,R8152J036B,R8152S063B,R8152S051B,R8152X109B,R8152S160B,R8152S099B,R8152S087B,R8152J091B,R8152S075B,R8152X044B,R8152X165B,R8152X032B,R8152S104B,R8152X068B,R8152X056B,R8152S116B,R8152J120B,R8152J035B,R8152J059B,R8152J047B,R8152X069B,R8152S074B,R8152S062B,R8152S050B,R8152X150B,R8152S078B,R8152S066B,R8152X053B,R8152S054B,R8152X041B,R8152S042B,R8152S175B,R8152X077B,R8152J082B,R8152X065B,R8152J070B,R8152X089B,R8152J094B,R8152S107B,R8152S119B,R8152J111B,R8152J135B,R8152J038B,R8152X107B,R8152S041B,R8152S150B,R8152X119B,R8152S089B,R8152S077B,R8152X042B,R8152S065B,R8152X030B,R8152S053B,R8152X066B,R8152J093B,R8152X054B,R8152X175B,R8152J081B,R8152X078B,R8152S118B,R8152J110B,R8152S106B,R8152J037B,R8152J049B,R8152S052B,R8152S040B,R8152X108B,R8152S056B,R8152S165B,R8152S044B,R8152S032B,R8152X120B,R8152X035B,R8152S068B,R8152J044B,R8152J165B,R8152J032B,R8152X091B,R8152J068B,R8152J056B,R8152S109B,R8152J109B,R8152X048B,R8152X036B,R8152S140B,R8152S067B,R8152S055B,R8152S043B,R8152S031B,R8152X145B,R8152S079B,R8152J031B,R8152S108B,R8152J140B,R8152J055B,R8152J043B,R8152X080B,R8152J079B,R8152J067B,R8152X092B,R8152J108B,R8152X037B,R8152X049B,R8152S030B,R8152S034B,R8152S155B,R8152X130B,R8152J090B,R8152X033B,R8152X057B,R8152S058B,R8152X045B,R8152S046B,R8152J046B,R8152J034B,R8152J155B,R8152J058B,R8152X058B,R8152S045B,R8152S033B,R8152S130B,R8152X046B,R8152S069B,R8152X034B,R8152X155B,R8152S057B,R8152J130B,R8152J033B,R8152J057B,R8152X090B,R8152J045B,R8152J069B,R8152XXXXB,R8152X059B,R8152X047B,R8152X SERIES,R8152X095B,R8152X083B,R8152S048B,R8152X112B,R8152S036B,R8152S145B,R8152J040B,R8152X100B,R8152J064B,R8152J052B,R8152J088B,R8152J076B,R8152X071B,R8152X180B,R8152J105B,R8152J117B,R8152X125B,R8152X113B,R8152S091B,R8152SXXXB-E2-FE,R8152X084B,R8152X072B,R8152X096B,R8152S120B,R8152S059B,R8152X101B,R8152S047B,R8152J051B,R8152S035B,R8152J160B,R8152J075B,R8152J063B,R8152J099B,R8152J087B,R8152X060B,R8152J116B,R8152J104B,R8152X114B,R8152X102B,R8152S090B,R8152S111B,R8152X110B,R8152S038B,R8152S135B,R8152J042B,R8152J030B,R8152J066B,R8152J054B,R8152J175B,R8152J078B,R8152X093B,R8152X081B,R8152J107B,R8152J119B,R8152S081B,R8152X135B,R8152X038B,R8152S093B,R8152S110B,R8152X094B,R8152S049B,R8152S037B,R8152J150B,R8152X111B,R8152J053B,R8152J041B,R8152J077B,R8152J065B,R8152J089B,R8152X082B,R8152X070B,R8152J118B,R8152J106B,R8152S092B,R8152S080B,R8152X039B,R8152X051B,R8152X160B,R8152X075B,R8152X063B,R8152X099B,R8152S125B,R8152J060B,R8152X087B,R8152S101B,R8152J084B,R8152S113B,R8152J072B,R8152J096B,R8152JXXXB-T1-FE,R8152J101B,R8152J125B,R8152J113B,R8152S180B,R8152X105B,R8152X117B,R8152S095B,R8152S083B,R8152S071B,R8152X040B,R8152S100B,R8152X064B,R8152X052B,R8152X088B,R8152J071B,R8152X076B,R8152J180B,R8152S112B,R8152J095B,R8152J083B,R8152S039B,R8152J112B,R8152J100B,R8152J039B,R8152S070B,R8152X118B,R8152X106B,R8152S094B,R8152S082B,R8152X073B,R8152X061B,R8152X097B,R8152S098B,R8152X085B,R8152S086B,R8152S103B,R8152S115B,R8152J062B,R8152J050B,R8152J086B,R8152X,R8152J074B,R8152J098B,R8152X170B,R8152J103B,R8152J115B,R8152X103B,R8152X115B,R8152S085B,R8152S073B,R8152S061B,R8152S170B,R8152X062B,R8152X050B,R8152X086B,R8152X074B,R8152S097B,R8152S114B,R8152J170B,R8152X098B,R8152J073B,R8152S102B,R8152J061B,R8152J097B,R8152J085B,R8152J114B,R8152J102B,R8152X116B,R8152X104B,R8152S096B,R8152S084B,R8152S072B,R8152S060B
电子商城
现货市场
服务
可根据用户的MOSFET管进行参数检测出具报告,静态参数最大电压:7500V、检测最大电流6000A;动态参数最大电压:3300V、检测最大电流:4500A。该测试标准满足GB、IEC及行业标准等,具备可靠性评估及老化实验能力。
实验室地址: 西安 提交需求>
世强深圳实验室提供Robei EDA软件免费使用服务,与VCS、NC-Verilog、Modelsim等EDA工具无缝衔接,将IC设计高度抽象化,并精简到三个基本元素:模块、引脚、连接线,自动生成代码。点击预约,支持到场/视频直播使用,资深专家全程指导。
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