Rev.0DocumentFeedbackInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specicationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:781.329.4700©2013AnalogDevices,Inc.Allrightsreserved.TechnicalSupport–IN+INREFOUTVDD1GND1VREG1VDD2GND2VREG2REFOUT1NCEAOUT2EAOUT11336-001图1.1受美国专利第5,952,849号、6,873,065号和7,075,329号保护,其它专利正在申请中。高稳定性隔离误差放大器ADuM4190产品特性稳定,不随时间和温度而变化初始精度:0.5%全温度范围精度:1%兼容II型或III型补偿网络基准电压:1.225V兼容DOSA低功耗工作:7mA(总功耗)宽电源电压范围VDD1:3V至20VVDD2:3V至20V带宽:400kHz隔离电压:5kVrms(加强)安全和法规认证(申请中)UL认证:依据UL1577,1分钟5,000VrmsCSA元件验收通知#5AVDE合格证书DINVVDEV0884-10(VDEV0884-10):2006-12VIORM=849V峰值宽温度范围工作环境温度:-40°C至+125°C最高结点温度:150°C应用线性反馈电源逆变器不间断电源(UPS)DOSA兼容模块电压监控器ADI中文版数据手册是英文版数据手册的译文,敬请谅解翻译中可能存在的语言组织或翻译错误,ADI不对翻译中存在的差异或由此产生的错误负责。如需确认任何词语的准确性,请参考ADI提供的最新英文版数据手册。概述ADuM41901是采用ADI公司iCoupler®技术的隔离误差放大器。ADuM4190非常适合用于线性反馈电源。ADuM4190的原边控制器与常用的光耦合器和分流调节器解决方案相比,在瞬态响应、功率密度和稳定性方面均有所提高。与在整个寿命周期中和高温下具有不确定电流传输比的基于光耦合器的解决方案不同,ADuM4190的传输功能不随寿命周期而改变,在宽温度范围−40°C至+125°C内保持稳定。ADuM4190内置宽频运算放大器,可用于各种常用的电源环路补偿技术中。ADuM4190速度足够快,允许反馈环路对快速瞬变条件和过流条件做出反应。该器件还内置一个高精度1.225V基准电压源,可与电源输出设定点进行比较。ADuM4190采用宽体16引脚SOIC封装,加强型隔离电压额定值为5kVrms。Rev.0|Page2of20目录ADuM4190产品特性........................................................................................1应用.................................................................................................1概述..................................................................................................1功能框图.........................................................................................1修订历史.........................................................................................2技术规格........................................................................................3封装特性...................................................................................4法规信息...................................................................................4隔离和安全相关特性..............................................................4建议工作条件...........................................................................5DINVVDEV0884-10(VDEV0884-10):2006-12绝缘特性...................................................................................5绝对最大额定值...........................................................................6ESD警告....................................................................................6引脚配置和功能描述...................................................................7典型性能参数...............................................................................8测试电路......................................................................................12应用信息.......................................................................................13精密电路工作原理................................................................13隔离式放大器电路工作原理..............................................14应用框图.................................................................................14设置输出电压........................................................................15DOSA模块应用.....................................................................15直流正确性和磁场抗扰度...................................................15隔离寿命..................................................................................16外形尺寸......................................................................................17订购指南..................................................................................17修订历史2013年7月—修订版0:初始版Rev.0|Page3of20技术规格对于TA=TMIN至TMAX,VDD1=VDD2=3V至20V。所有的典型值规格在TA=25°C和VDD1=VDD2=5V条件下测得,除非另有说明。表1.参数测试条件/注释最小值典型值最大值单位精度(1.225V−EAOUT)/1.225V×100%;见图27初始误差TA=25°C0.250.5%总误差TA=TMIN至TMAX0.51%运算放大器失调误差−5±2.5+5mV开环增益6680dB输入共模范围0.351.5V增益带宽积10MHz共模抑制72dB输入电容2pF输出电压范围COMP引脚0.22.7V输入偏置电流0.01µA基准电压源输出电压0mA至1mA负载,CREFOUT=15pFTA=25°C1.2151.2251.235VTA=TMIN至TMAX1.2131.2251.237V输出电流CREFOUT=15pF2.0mAUVLO趋正阈值2.82.96V趋负阈值2.42.6VEAOUT阻抗VDD2或VDD1UVLO阈值高阻态Ω输出特性参见图29输出增益1FromCOMP至EAOUT,0.3V至2.4V,±3mA0.831.01.17V/VFromEAOUTOUT2,至EA,0.4V至5.0V,±1mAVDD1=20V2.52.62.7V/V输出失调电压COMP至EAOUT,0.3V至2.4V,±3mA−0.4+0.05+0.4VEAOUT至EAOUT2,0.4V至5.0V,±1mA,VDD1=20V−0.1+0.01+0.1V输出线性度2COMP至EAOUT,0.3V至2.4V,±3mA−1.0+0.15+1.0%EAOUT至EAOUT2,0.4V至5.0V,±1mA,VDD1=20V−1.0+0.1+1.0%输出−3dB带宽COMP至EAOUT,0.3V至2.4V,±3mA,COMP至EAOUT2,0.4V至5.0V,±1mA,VDD1=20VA、S级100200kHzB、T级250400kHz输出电压EAOUT±3mA输出低电压0.4V高电压2.42.5V输出电压EAOUT2±1mA输出低电压VDD1=4.5V至5.5V0.30.6VVDD1=10V至20V0.30.6V高电压VDD1=10V至20V4.84.9VVDD1=10V至20V5.05.4V噪声EAOUT参见图151.7mVrms噪声EAOUT2参见图154.8mVrms电源工作范围,第1侧VDD13.020V工作范围,第2侧VDD23.020VADuM4190Rev.0|Page4of20参数测试条件/注释最小值典型值最大值单位电源抑制直流,VDD1=VDD2=3V至20V60dB电源电流IDD1参见图41.42.0mAIDD2参见图5