【应用】高温数字CMOS容耦隔离器SI8719BD-A-IS做车载CAN隔离，响应时间快、通讯速率高

时间： 2019-12-02 来源：世强

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高温数字CMOS容耦隔离器,SI8719BD-A-IS,Silicon Labs

目前部分车载产品的通讯以CAN为主，往往在CAN芯片与主控芯片之间需要加隔离芯片实现强弱电侧的电气隔离，大部分以高速光耦为主，随着对可靠性能的要求提升，光耦的光栅衰减问题会涉及到产品的寿命问题，设计者又希望在不改动原有的PCB板情况下找到新的替换方案。针对高速光耦的运用，SILICON LABS推出的SI8719BD-A-IS 高温数字CMOS容耦隔离器可以满足客户的设计需求，可靠性上会得到提升，成本也有优势。图1为SI8719BD-A-IS的引脚框图，该芯片封装为DIP6，兼容目前主流的高速光耦封装。

图1 SI8719BD-A-IS的引脚框图

对于车载CAN通讯的设计，会涉及TX和RX信号的隔离，会用到两颗SI8719BD-A-IS做信号隔离。SI8719BD-A-IS的工作原理是原边电流If在6mA-30mA导通,通常在输入侧串电阻限流的方式到达原边的电流If的值，另外Vdd可以供5V即可，可以实现信号从原边到副边的传输。

相比高速光耦的优势，SI8719BD-A-IS可以为设计者带来更快的响应时间，高速光耦可能信号传输时间在100ns，SI8719BD-A-IS的信号传输时间只需要30ns。CAN通讯速率通常在1Mbps，SI8719BD-A-IS可以提供15Mbps的通讯速率满足高速通讯速率需求。从安规考虑，SI8719BD-A-IS满足5KV耐压，可以过相关安规认证。另外该芯片提供-40℃-125℃的宽工作温度需求，满足车载工作温度需求。相比高速光耦的设计成本，SI8719BD-A-IS具有更低优势，综合考虑，在原有高速光耦做CAN设计不改动设计方案时，SI8719BD-A-IS是不错的设计选择。

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2016-11-01 - 新产品代理服务技术支持采购服务

低成本电容隔离神器Si8715BD-A-ISR Pin to pin替换IPM驱动隔离ACPL-P480

Si8715BD-A-ISR是Silicon Labs推出的15MBd SDIP6封装的高温数字CMOS容耦隔离器，由于其基于Silicon Labs独有专利的CMOS隔离工艺，其隔离电压可达5.0 kVrms，另外通过汽车级AEC-Q100认证，工作温度范围可达-40°C至125°C。可pin to pin替换业内常用的隔离光耦ACPL-P480。

2018-05-17 - 设计经验代理服务技术支持采购服务

公告#1510062隔离装置装运标签变更（认证标签）

Silicon Labs发布公告，宣布对隔离器件的标签进行更改，以符合UL认证要求和CQC认证标准。新标签包括新的工厂代码和CQC认证标志，以帮助客户识别不同测试站点的材料。

SILICON LABS - ISOLATION DEVICES,隔离装置,SI8642ED-B-ISR,SI8640AB-B-IS,SI8642BB-B-IS1R,SI8651BC-B-IS1R,SI8622EC-B-ISR,SI8652ED-B-IS,SI8602AB-B-ISR,SI8661BD-B-ISR,SI8642ED-B-YS0R,SI8640EC-B-IS1,SI8650ED-B-IS,SI8233CB-D-IMR,SI8602AC-B-IS,SI8661EC-B-IS1R,SI8261AAC-C-IP,SI8600AC-B-IS,SI8642AB-B-IS,SI8621BB-B-ISR,SI8610BD-B-IS,SI8710AD-B-ISR,SI8710CD-B-ISR,SI8635BC-B-IS1,SI8261AAC-C-IS,SI8660BB-B-IS1R,SI8233AB-D-IMR,SI8233BB-D-IM,SI8235BB-D-IM,SI8261ABC-C-ISR,SI8610BB-B-IS,SI8655BD-B-IS,SI8620EB-B-ISR,SI8650BC-B-IS1,SI8261BAC-C-ISR,SI8261BCC-C-ISR,SI8220BD-D-IS,SI8642BD-B-IS,SI8640AB-B-ISR,SI8652BD-B-ISR,SI8663EC-B-IS1,SI8711CD-B-IM,SI8220DB-A-IS,SI8605AB-B-IS1,SI8651EC-B-IS1R,SI8605AD-B-IS,SI8640BD-B-IS,SI8641BC-B-IS1,SI8651BD-B-IS,SI8621BB-B-IS,SI8641BC-B-IS1R,SI8220DB-A-ISR,SI8622BC-B-IS,SI8621BC-B-ISR,SI8630BC-B-IS1,SI8651BB-B-IS1,SI8641BD-B-YS0,SI8662BC-B-IS1,SI8663EC-B-IS1R,SI8234BB-D-IMR,SI8642BB-B-IS1,SI8620AB-B-ISR,SI8640BB-B-IS1R,SI8712CC-B-IS,SI8261BAD-C-ISR,SI8651AB-B-IS1R,SI8712CC-B-IP,SI8631AB-B-IS,SI8220BB-D-IS,SI8620ED-B-IS,SI8630BB-B-IS1,SI8660BB-B-IS1,SI8606AD-B-ISR,SI8712BC-B-IS,SI8712BC-B-IP,SI8620BD-B-ISR,SI8641EC-B-IS1R,SI8642BB-B-IS,SI8642BB-B-ISR,SI8261ACD-C-IM,SI8661ED-B-IS,SI8235AB-D-IM,SI8622EB-B-IS,SI8641BD-B-ISR,SI8261ACD-C-IS,SI8620EC-B-ISR,SI8261BAC-C-IPR,SI8630ED-B-IS,SI8621AB-B-IS,SI8220CB-A-IS,SI8631EC-B-IS1R,SI8261ABD-C-ISR,SI8640EC-B-IS1R,SI8640ED-B-ISR,SI8600AB-B-ISR,SI8710AC-B-IS,SI8710AC-B-IP,SI8641AB-B-IS1,SI8650AB-B-IS1,SI8710AD-B-IS,SI8640AB-B-IS1R,SI8718BC-A-IS,SI8719BC-A-IS,SI8605AC-B-IS1,SI8631BD-B-ISR,SI8719BC-A-IP,SI8235AB-D-IMR,SI8631AB-B-IS1R,SI8631ED-B-ISR,SI8718BC-A-IP,SI8716BC-A-IP,SI8221CC-D-IS,SI8663BC-B-IS1R,SI8716BC-A-IS,SI8645BB-B-IS1,SI8712AD-B-IM,SI8661BD-B-YS0R,SI8660AB-B-IS1,SI8631BB-B-IS1,SI8663AB-B-IS1,SI8662ED-B-ISR,SI8622ED-B-ISR,SI8610BB-B-ISR,SI8715BD-A-IS,SI8631BD-B-IS,SI8233CB-D-IM,SI8642AB-B-ISR,SI8662BB-B-IS1R,SI8261BBC-C-IS,SI8660ED-B-IS,SI8651AB-B-IS1,SI8261BCD-C-IM,SI8661EC-B-IS1,SI8640BB-B-IS1,SI8640BD-B-ISR,SI8641AB-B-IS1R,SI8602AC-B-ISR,SI8261BBC-C-IP,SI8261BCD-C-IS,SI8641ED-B-ISR,SI8710CC-B-ISR,SI8642BD-B-YS0R,SI8631BB-B-ISR,SI8261BBD-C-IS,SI8712BD-B-IM,SI8620BC-B-IS,SI8600AD-B-ISR,SI8610AB-B-IS,SI8641ED-B-IS,SI8645BB-B-IS,SI8620BD-B-IS,SI8610BC-B-ISR,SI8610EC-B-ISR,SI8710CC-B-IP,SI8631BC-B-IS1R,SI8652EC-B-IS1,SI8710CC-B-IS,SI8261BCD-C-ISR,SI8710CC-B-IPR,SI8622ED-B-IS,SI8652BC-B-IS1,SI8710BC-B-IS,SI8622EB-B-ISR,SI8631BD-B-YS0,SI8233AB-D-IM,SI8710BC-B-IP,SI8261BCC-C-IP,SI8640BB-B-IS,SI8640BB-B-ISR,SI8261BCC-C-IS,SI8712CD-B-IM,SI8622BD-B-ISR,SI8652BB-B-IS1R,SI8261BAD-C-IS,SI8640BC-B-IS1,SI8663ED-B-IS,SI8631EC-B-IS1,SI8606AD-B-IS,SI8620EB-B-IS,SI8650BD-B-IS,SI8661BC-B-IS1,SI8610BD-B-ISR,SI8661BD-B-IS,SI8622BC-B-ISR,SI8651BB-B-IS1R,SI8712CC-B-ISR,SI8641AB-B-IS,SI8642BC-B-IS1R,SI8631BC-B-IS1,SI8610BC-B-IS,SI8220DB-D-IS,SI8642BD-B-YS0,SI8651ED-B-IS,SI8600AB-B-IS,SI8602AB-B-IS,SI8662AB-B-IS1R,SI8663BC-B-IS1,SI8261BAC-C-IP,SI8641BD-B-YS0R,SI8710BD-B-ISR,SI8610ED-B-IS,SI8660BC-B-IS1R,SI8261BAC-C-IS,SI8621AB-B-ISR,SI8233BB-D-IMR,SI8652EC-B-IS1R,SI8661BB-B-IS1,SI8234BB-D-IM,SI8630AB-B-IS1,SI8711BC-B-IS,SI8711BC-B-IP,SI8652AB-B-IS1R,SI8620ED-B-ISR,SI8606AC-B-IS1,SI8605AD-B-ISR,SI8620EC-B-IS,SI8622EC-B-IS,SI8600AC-B-ISR,SI8261AAD-C-IS,SI8631BD-B-YS0R,SI8630EC-B-IS1,SI8712AC-B-ISR,SI8642BD-B-ISR,SI8662EC-B-IS1R,SI8652BB-B-IS1,SI8630AB-B-ISR,SI8645BC-B-IS1,SI8630AB-B-IS,SI8631ED-B-YS0R,SI8261ABD-C-IS,SI8641ED-B-YS1R,SI8621BC-B-IS,SI8642ED-B-IS,SI8641EC-B-IS1,SI8715BC-A-ISR,SI8655BB-B-IS1,SI8645BD-B-ISR,SI8660EC-B-IS1R,SI8710BD-B-IS,SI8641ED-B-YS1,SI8220DD-D-IS,SI8622BD-B-IS,SI8642AB-B-IS1,SI8234AB-D-IMR,SI8662BD-B-ISR,SI8640BC-B-IS1R,SI8631BB-B-IS1R,SI8622BB-B-ISR,SI8651BC-B-IS1,SI8602AD-B-ISR,SI8220BB-D-ISR,SI8621ED-B-IS,SI8650EC-B-IS1,SI8645BD-B-IS,SI8620BB-B-IS,SI8652BD-B-IS,SI8662AB-B-IS1,SI8600AD-B-IS,SI8631BB-B-IS,SI8641BD-B-IS,SI8663BB-B-IS1,SI8710CD-B-IS,SI8652ED-B-ISR,SI8261ACC-C-ISR,SI8661ED-B-ISR,SI8630BD-B-IS,SI8662BC-B-IS1R,SI8635BB-B-IS,SI8662EC-B-IS1,SI8605AC-B-IS1R,SI8640ED-B-YSR,SI8220BB-A-IS,SI8642BC-B-IS1,SI8710BC-B-ISR,SI8663BD-B-IS,SI8261BBC-C-IPR,SI8712AC-B-IS,SI8642EC-B-IS1,SI8620AB-B-IS,SI8622AB-B-IS,SI8261BCC-C-IPR,SI8631ED-B-IS,SI8220CD-D-IS,SI8650BB-B-IS1,SI8711AC-B-IS,SI8641BB-B-IS1,SI8711AC-B-IP,SI8712AC-B-IP,SI8717BC-A-IS,SI8235BB-D-IMR,SI8663BD-B-ISR,SI8715BC-A-IP,SI8717BC-A-IP,SI8261ACD-C-ISR,SI8715BC-A-IS,SI8663ED-B-ISR,SI8220DB-D-ISR,SI8651EC-B-IS1,SI8711AD-B-IM,SI8220CB-D-IS,SI8662BD-B-IS,SI8621BD-B-ISR,SI8630BB-B-IS,SI8635BD-B-IS,SI8641BB-B-ISR,SI8641BB-B-IS,SI8719BD-A-IS,SI8710AC-B-ISR,SI8630BC-B-IS1R,SI8662ED-B-IS,SI8605AB-B-IS1R,SI8234AB-D-IM,SI8221CC-A-IS,SI8660BC-B-IS1,SI8660BD-B-IS,SI8620BC-B-ISR,SI8631AB-B-ISR,SI8642AB-B-IS1R,SI8640ED-B-IS,SI8621EC-B-ISR,SI8711BD-B-IM,SI8220BB-A-ISR,SI8660BD-B-ISR,SI8640AB-B-IS1,SI8630BD-B-ISR,SI8621BD-B-IS,SI8261ACC-C-IS,SI8620BB-B-ISR,SI8712AC-B-IPR,SI8640ED-B-YS,SI8261ACC-C-IP,SI8261BBD-C-ISR,SI8711CC-B-IP,SI8662BB-B-IS1,SI8720BC-A-IP,SI8711CC-B-IS,SI8720BC-A-IS,SI8606AC-B-IS1R,SI8661AB-B-IS1,SI8651BD-B-ISR,SI863

10/6/2015 - 产品变更通知及停产信息 - rev I 代理服务技术支持采购服务

商用空调变频器功率电路使用的IPM模块，其接口驱动隔离电路使用Si87xx光耦替代数字隔离器有哪些优点？

Si87xx光耦替代系列数字隔离器是业界第一个基于CMOS工艺的，与光耦引脚完全兼容的升级产品，可以完全替代光耦应用在IPM接口电路中。其主要优势为：1、增强可靠性，与光耦不同，性能不会随使用时间，温度和电源而衰减；2、提高了时序特性和器件之间的一致性；3、具有较大的抗噪能力，保证在强干扰环境中稳定工作；4、降低了系统功耗。

2017-05-05 - 技术问答代理服务技术支持采购服务

Silicon Labs（芯科科技） AN598 高速电平转换使用Si8XXX 隔离器应用笔记

本文探讨了使用Silicon Labs的Si8xxx数字隔离器和ISO驱动器实现的高速电平转换技术。内容涵盖常见模式电压转换、逻辑阈值电压转换和隔离栅极驱动器常见模式反转。文章详细介绍了Si86xx数字隔离器在工业应用中的隔离和电平转换功能，以及Si823x ISO驱动器在开关模式电源系统中的应用。此外，还讨论了高速逻辑电路中的电平转换挑战和解决方案。

SILICON LABS - 隔离耦合器,电源芯片,隔离器,ISOLATORS,SI8661BC-B-IS1R,SI8902D-A01-GS,SI8450BA-B-IS1R,SI8660BA-B-IS1,SI8238AB-D-IS1,SI8422AB-B-ISR,SI8380PM-IU,SI8235AB-D-ISR,SI8502-B-GM,SI8712CC-B-IP,SI8421AB-C-IS,SI8462BB-B-IS1,SI8710AD-B-IS,SI8712CC-B-IS,SI8662BB-B-IS1R,SI8461AB-B-IS1,SI8441BB-D-IS,SI8635BD-B-IS,SI8232AB-D-IS1,SI8388P-IU,SI8461AA-B-IS1R,SI8602AC-B-ISR,SI8440BB-D-ISR,SI8382PS-IU,SI8712BC-B-ISR,SI8661EC-B-IS1R,SI8235BD-D-IS,SI8641BB-B-IUR,SI8660BA-A-IS1,SI8451BB-B-IS1,SI8232AB-D-ISR,SI8605AC-B-IS1,SI8261AAC-C-IP,SI8651ED-B-ISR,SI8423BB-B-ISR,SI8261AAC-C-IS,SI8661AB-B-IS1R,SI8220CD-D-IS,SI8650ED-B-IS,SI8642AB-B-IS,SI8711CD-B-IMR,SI8719BC-A-IP,SI8631AB-B-IS,SI8715BC-A-IPR,SI8445BB-C-IS,SI8719BC-A-IS,SI8620AB-B-IS,SI8631EC-B-IS1,SI8274AB1-IM,SI8244CB-D-IS1R,SI8711AC-B-ISR,SI8405AA-B-IS1R,SI8065AA-B-IU,SI8271GB-IS,SI8462BA-B-IS1R,SI8640AB-B-IS1,SI8710BC-B-IP,SI8600AD-B-IS,SI8900B-A01-GS,SI8710BC-B-IS,SI8640BC-B-IS1R,SI8221CC-D-ISR,SI8662BD-B-ISR,SI8275AB-IM,SI8237BD-D-IS,SI8712BD-B-IM,SI8450AB-B-IS1,SI8273DB-IS1,SI8620EC-B-IS,SI8605AB-B-IS1R,SI8655BB-B-IS1R,SI8718BC-A-IPR,SI8261ACD-C-ISR,SI8235BB-D-IS,SI8622BB-B-ISR,SI8235BB-D-IM,SI8650BC-B-IS1,SI8640AB-B-ISR,SI8662ED-B-ISR,SI8712BC-B-IPR,SI8540-B-FWR,SI8641BB-B-ISR,SI8236BA-D-IMR,SI8641BD-D-IS,SI8640EC-B-IS1R,SI8422BD-D-ISR,SI8461BB-B-IS1R,SI8421AD-D-ISR,SI8655BA-B-ISR,SI8274GB1-IMR,SI8620EC-B-ISR,SI8274AB4D-IS1R,SI8442AB-D-ISR,SI8233AB-D-IM,SI8640AB-B-IS1R,SI8233AB-D-IS,SI8500,SI8230AB-D-IS,SI8283BD-IS,SI8711AC-B-IPR,SI8720BC-A-ISR,SI8710BD-B-ISR,SI8621AB-B-ISR,SI8261BAD-C-ISR,SI8900B-A01-GSR,SI8455BA-B-IU,SI8440BB-D-IS1,SI8232AD-D-IS,SI8442AB-D-IS1,SI8620BD-B-ISR,SI8238AB-D-IS1R,SI8430BB-D-IS1R,SI8662EC-B-IS1,SI8452AA-B-IS1,SI8236AA-D-IM,SI8445BA-D-IS1R,SI8641BB-B-IS,SI8655BA-B-IUR,SI8652BC-B-IS1R,SI8600AD-B-ISR,SI8655BB-B-IS1,SI8410AD-D-ISR,SI8400AB-B-IS,SI8030AA-B-IU,SI8451AB-B-IS1R,SI8230BB-D-IS1,SI8460AA-B-IS1,SI8230AD-D-ISR,SI8441AB-D-IS1R,SI8442BA-D-IUR,SI8642BC-B-IS1R,SI8235AD-D-IS,SI8660AB-B-IS1,SI8273DB-IS1R,SI8422BB-B-IS,SI8235AB-D-IS1R,SI8384,SI8274GB1-IS1,SI8380,SI8503-B-GM,SI8382,SI8388,SI8641BA-B-IUR,SI8237BD‐D‐IS,SI8235BA-D-IS1R,SI8642BD-B-ISR,SI8237AD-D-IS,SI8237BD-D-ISR,SI8450BA-B-IS1,SI8652AB-B-IS1R,SI8718BC-A-ISR,SI8631BC-B-IS1,SI8641BB-B-IS1,SI8235AB-D-IMR,SI8631BD-B-ISR,SI8651EC-B-IS1,SI8661BB-B-IS1,SI8661ED-B-IS,SI8631EC-B-IS1R,SI8622EB-B-ISR,SI8452BB-B-IS1R,SI8610AB-B-ISR,SI8621ED-B-ISR,SI8232DB-D-ISR,SI8261BCC-C-IS,SI8236BB-D-IMR,SI8220BD-D-ISR,SI8423AB-D-ISR,SI8422AD-D-IS,SI8641BD-B-IS,SI8230BB-D-ISR,SI838X,SI8501-B-GM,SI8661BC-B-IS1,SI8232BB-D-IS,SI8630BD-B-IS,SI8441AA-D-IS1,SI8380P-IUR,SI8442BA-D-IS1,SI8384PS-IUR,SI8231BD-D-IS,SI8435BB-D-IS1,SI8421BD-D-IS,SI8622BC-B-IS,SI8600AC-B-IS,SI8452BA-B-IS1R,SI8641BA-C-IUR,SI8605AD-B-ISR,SI8651BD-B-IS,SI8435BB-D-ISR,SI8423BB-D-ISR,SI8422AB-D-ISR,SI8400AB-B-ISR,SI8261BAD-C-IMR,SI8642AB-B-IS1R,SI8405AA-A-IS1,SI8630BB-B-ISR,SI8640ED-B-ISR,SI8040AA-B-IU,SI8382PF-IU,SI8655BA-B-IS,SI8461BA-B-IS1,SI8237AD‐D‐IS,SI8405AA-B-IS1,SI8275AB-IMR,SI8662BD-B-IS,SI8655BA-B-IU,SI8650BB-B-IS1R,SI8410BD-D-IS,SI8231BD-D-ISR,SI8630BB-B-IS,SI8282CD-IS,SI8422AB-D-IS,SI8220CB-D-ISR,SI8441BB-D-IS1R,SI8660BB-B-IS1,SI8630BB-B-IS1,SI8645BC-B-IS1R,SI8271AB-ISR,SI8420-B-IS,SI8405AB-B-IS1,SI8422BB-D-IS,SI8220DB-D-IS,SI8642BC-B-IS1,SI8235AB-D-IS1,SI8455BA-B-IS1R,SI8642ED-B-ISR,SI8652BB-B-IS1R,SI8402AB-B-ISR,SI8261BBD-C-IS,SI8273GB-IS1R,SI8261BBD-C-IM,SI8231BB-D-ISR,SI8261BAC-C-ISR,SI8645BA-B-IU,SI8430AB-D-ISR,SI8642BB-B-IS1,SI8451AA-B-IS1R,SI8441AA-D-IS1R,SI8388P-IUR,SI8902B-A01-GSR,SI851X,SI8285BD-A-IS,SI8400AA-B-IS,SI8650BD-B-ISR,SI8234AD-D-ISR,SI8261ABD-C-IMR,SI8710CC-B-IS,SI8635BD-B-ISR,SI8540,SI8710CC-B-IP,SI8422AB-D-YS0R,SI8605AB-B-IS1,SI8421AD-D-IS,SI8661EC-B-IS1,SI8442BA-D-IU,SI8711CD-B-IM,SI8610ED-B-ISR,SI8635BC-B-IS1R,SI8273BBD-IS1R,SI8606AC-B-IS1R,SI8640EC-B-IS1,SI8602AB-B-ISR,SI8450AB-B-IS1R,SI8400AA-B-ISR,SI8231BB-D-IS1,SI8380S-IU,SI8663ED-B-ISR,SI8460BA-B-IS1R,SI8423AB-D-IS,SI8274GB4D-IMR,SI8441BB-D-IS1,SI8234AD-D-IS,SI8420BB-D-IS,SI8384P-IU,SI8261BCD-C-ISR,SI8442-A-IS,SI8420BB-D-ISR,SI8261BAC-C-IPR,SI8274BB1-IS1R,SI8273AB-IM,SI8273BB-IS1,SI854X,SI8261ABC-C-IS,SI8380PS-IUR,SI8431BB-D-IS1,SI8261ABC-C-IP,SI8382PF-IUR,SI8622EC-B-IS,SI8441BB-D-ISR,SI8420-C-IS,SI8631BB-B-ISR,SI8274GB4D-IM,SI8712BC-B-IS,SI8712BC-B-IP,SI8655BD-B-IS,SI8610AB-B-IS,SI8450BB-B-IS1,SI871X,SI8235BA-D-IS1,SI8710BD-B-IS,SI8410AB-C-IS,SI8232BD-D-IS,SI8463BB-B-IS1,SI8233BB-D-IM,SI8645BB-B-IS1R,SI8631BB-B-IS1,SI8442BA-D-IS1R,SI8620ED-B-ISR,SI8622ED-B-IS,SI8235BD-D-ISR,SI8422BD-D-IS,SI8234AB-C-IS1,SI8600AC-B-ISR,SI8642BT-ISR,SI8501,SI8502,SI8503,SI8631BC-B-IS1R,SI8641BC-B-IS1,SI8275ABD-IM,SI8233BB-D-IS,SI8380PF-IU,SI8620BC-B-ISR,SI8622BD-B-IS,SI8244BB-C-1S1,SI872X,SI8380PF-IUR,SI8421BB-C-IS,SI8233BB-D-IS1R,SI8274GB4D-IS1,SI8238AD‐D‐IS,SI8512,SI8513,SI8710AC-B-IP,SI8231AB-D-IS1R,SI8710AC-B-IS,SI8511,SI8230AB-D-IS1,SI8431BB-D-ISR,SI8517,SI8451BB-B-IS1R,SI8630AB-B-IS1,SI8518,SI8234AB-D-ISR,SI8040AA-B-IUR,SI8519,SI8650EC-B-IS1,SI8244BB-D-IS1,SI8241BB-D-IS1,SI8445-B-IS,SI8712BD-B-IMR,SI87,室内照明,车载娱乐,固网及电话交换设备,车载,数据通信,车身和底盘,车联网,便携数码,手机相关,电动汽车动力系统,小家电,燃油汽车动力系统,消费电子部件,车载通讯,电脑,工业电子,电脑外设,智能家居,可穿戴设备,大家电

2016年06月03日 - 应用笔记或设计指南 - Rev 0.2 代理服务技术支持采购服务

请问Si8xxx容耦隔离的实现原理和优势是什么？

Silicon Labs Si8xxx容耦隔离产品使用SiO2作为电介质，其设计原理是双DIE分开（INPUT DIE与OUTPUT DIE分开），两层电容隔离层+金线连接。这样设计具有非常高的安全性和可靠性。如果电容被击穿，电容两端处于短路状态，但是同时要把两层SiO2层击穿是非常困难的，而且还有金线的保护，如果电流达到能够同时击穿两层SiO2层的程度，中间的金线也会同时断掉，这个专利设计使Si8xxx电容隔离可靠性更高.

2017-05-05 - 技术问答代理服务技术支持采购服务