热插拔双通道I2C隔离器ADuM1250/ADuM1251Rev.DInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specicationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:781.329.4700©2006–2011AnalogDevices,Inc.Allrightsreserved.功能框图ENCODEDECODEDECODEENCODEENCODEDECODEDECODEENCODEVDD1SDA1SCL1GND1VDD2SDA2SCL2GND21234876506113-001图1.ADuM1250ENCODEDECODEENCODEDECODEDECODEENCODEVDD1SDA1SCL1GND1VDD2SDA2SCL2GND21234876506113-002图2.ADuM12511受美国专利5,952,849号、6,873,065号和7,075,329号保护。产品特性双向I2C通信开漏接口适合热插拔应用30mA吸电流能力工作频率:1,000kHz电源电压/逻辑电平:3.0V至5.5V8引脚SOIC封装,符合RoHS标准工作温度最高可达:125°C通过汽车应用认证安全和法规认证UL认证1分钟2,500Vrms,符合UL1577CSA元件验收通知#5AVDE合格证书DINVVDEV0884-10(VDEV0884-10):2006-12VIORM=560V峰值应用I2C、SMBus或PMBus接口隔离多级I2C接口电源网络以太网供电混合动力汽车电池管理概述ADuM1250/ADuM12511均为热插拔数字隔离器,内置非闩锁双向通信通道,且与I2C®接口兼容。这样就不需要将I2C信号分成单独的发送信号与接收信号,供独立光耦合器使用。ADuM1250提供两个双向通道,支持完全隔离的I2C接口。ADuM1251提供一个双向通道和一个单向通道,适合不需要双向时钟的应用。ADuM1250和ADuM1251均内置热插拔电路,可防止将无源卡插入有源总线时产生干扰数据。这些隔离器都采用ADI公司的iCoupler®芯片级变压器技术。iCoupler是磁隔离技术,其功能、性能、尺寸和功耗均优于光耦器件。ADuM1250/ADuM1251将iCoupler通道与半导体电路集成,在小型封装中实现完全隔离的I2C接口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。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。Rev.D|Page2of12目录产品特性...........................................................................................1应用..................................................................................................1功能框图...........................................................................................1概述....................................................................................................1修订历史...........................................................................................2技术规格...........................................................................................3电气特性......................................................................................3封装特性......................................................................................5法规信息.....................................................................................5隔离和安全相关特性................................................................5DINVVDEV0884-10(VDEV0884-10)隔离特性.....................................................................................6建议工作条件.............................................................................6ADuM1250/ADuM1251绝对最大额定值..............................................................................7ESD警告.......................................................................................7引脚配置和功能描述....................................................................8测试条件...........................................................................................9应用信息.........................................................................................10功能描述...................................................................................10启动............................................................................................10典型应用图..............................................................................11磁场抗扰度...............................................................................11外形尺寸........................................................................................12订购指南...................................................................................12汽车应用级产品....................................................................12修订历史2011年7月—修订版C至修订版D更改“典型应用图”部分................................................................112010年5月—修订版B至修订版C更改“产品特性”部分和“应用”部分...........................................1将VDD1=5V且VDD2=5V更改为VDD1=3.3V或5V且VDD2=3.3V或5V..................................................................................................3将VDD1=5V且VDD2=5V更改为VDD1=3.3V或5V且VDD2=3.3V或5V.................................................................................................4更改“典型应用图”部分和图9....................................................11更改“订购指南”.............................................................................12增加“汽车应用级产品”部分.......................................................122009年12月—修订版A至修订版B更改“产品特性”部分......................................................................1更改表7中的工作温度(TA)参数..................................................6更改表8中的工作环境温度(TA)参数........................................7更改“订购指南”............................................................................122007年6月—修订版0至修订版A全面更新VDE认证........................................................................1更改“产品特性”和注释1...........................................