我们正在为一款工业通讯路由器优化设计，VCC 5V,原RS485芯片采用TI THVD1500,考虑

我们正在为一款工业通讯路由器优化设计，VCC 5V,原rs485 芯片采用TI thvd1500,考虑供应安全性，想导入国产品牌，请推荐性能相当的国产芯片。
创建于2023-03-29

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Daniel Lv8 (0)

推荐思瑞浦 tpt487,数据手册：https://www.sekorm.com/doc/2282447.html
3.0V to 5.5V rs-485 transceivers 8PIN SOP封装。

创建于2023-03-29

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我司为一款工业电脑做国产化设计，接口RS485与现场的工业智能外设通讯，正在选型RS485芯片，实际通讯速率最高达450kbps，考虑到现场工人接线RS485经常出现极性反接等误操作，希望选型一款带总线极性判断电路的国产RS485芯片。

参考上海贝尔BL3085N(I56)，BL3085N(I56)是一款半双工、自适应总线极性的RS-485收发器，芯片内部包含一路驱动器和一路接收器。BL3085N(I56)集成总线极性判断电路，极性判定时间为80ms，在由RS-485通讯芯片构成的通讯系统中，能够自动适应总线端口的极性。数据手册：https://www.sekorm.com/doc/3085067.html 优势特点自适应总线极性极性判定时间80ms 内置失效保护电路高达500kbps的传输速率总线允许挂接多达256个收发器 I/O引脚ESD保护：±15kVIEC 61000-4-2，接触放电 SOP8封装

2023-06-26 - 技术问答

我们通信模块为了优化设计，需要一款带隔离电源的RS485芯片，而且要求国产物料，帮忙推荐一款。

可以评估下纳芯微的NSIP83086-DSWTR，内部集成隔离的DC-DC转换器，参考链接：https://www.sekorm.com/doc/2640174.html。

2022-12-20 - 技术问答

请推荐一款能替代TI带ESD保护功能的485芯片型号是THVD1450DGKR 封装VSSOP-8。要求国产。

推荐世强代理的川土微的带ESD保护的485芯片，型号是 CA-IF4850FS，具有±30kV ESD 保护功能的3.3V 至5V RS485/RS422 收发器。 https://www.sekorm.com/doc/2329873.html

2021-08-04 - 技术问答

我司优化设计一款 WIFI路由器电源，原并联调节器设计了TI TL431AQDBZR,封装SOT-23,想国产化，推荐国产芯片替代。

参考 A431E3R-A 数据手册：https://www.sekorm.com/doc/2142118.html A431是三端可调并联调节器，在适用的商业温度范围内具有规定的热稳定性。输出电压可以设置为Vref（约2.5V）和36V之间的任何值，使用两个外部电阻器。A431的典型输出阻抗为0.15Ω。有源输出电路提供了一个非常尖锐的开启特性，使得A431在许多应用中成为齐纳二极管的优秀替代品，例如板载调节、可调电源和开关电源。

2022-09-19 - 技术问答

替换TI的RS485芯片SN65176BDR，请问有合适的型号推荐吗？

你好，推荐芯力特的RS485芯片SIT3088EESA，数据手册链接：https://www.sekorm.com/doc/3078292.html

2022-12-08 - 技术问答代理服务技术支持采购服务

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2022/4/21 - 技术文档代理服务技术支持采购服务