WMSIC Electronic Components

Chipanalog CA-IS3742LB

ModelCA-IS3742LB
PackageSSOP-16
BrandChipanalog
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Chipanalog CA-IS3742LB
Type
CHIPANALOG
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CHIPANALOG
Electronic Component
CA-IS3742LB
Electronic Component
1
Package
SSOP-16
Electronic Component
Isolated
Electronic Component
0.13g
Electronic Component
1
CMTI(kV/us)
150kV/us
Electronic Component
BM0229953522
Operating Temperature
40℃~+125℃
Output
Level
Channel Count
2
Channel Count
2
(tpd)
12ns
Operating Voltage(VCCA)
2.5V~5.5V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CA-IS3742LB 产品概述

一、产品简介

CA-IS3742LB 是 Chipanalog(川土微)推出的一款高速数字隔离器,采用 SSOP-16 封装,提供双向隔离通道:2 路正向和 2 路反向。该器件支持最高 150 Mbps 的数据速率,默认输出为低电平,适用于要求信号完整性与共模干扰抑制的工业及通信接口隔离场景。

二、主要规格

  • 隔离耐压:3750 Vrms(标准隔离等级)
  • 共模瞬态抗扰度(CMTI):150 kV/µs
  • 最大数据速率:150 Mbps
  • 通道数:正向 2、反向 2
  • 传播延迟(tpd):12 ns(典型)
  • 工作电压:VCCA/VCCB 范围均为 2.5 V ~ 5.5 V(支持单/双电源域)
  • 工作温度:-40 ℃ ~ +125 ℃
  • 默认输出状态:低电平
  • 封装:SSOP-16

三、优势与亮点

  • 高隔离电压与高 CMTI:3750 Vrms 的隔离能力加上 150 kV/µs 的共模瞬态抑制,适合强干扰环境下的可靠数据传输。
  • 宽工作电压范围:2.5 V 至 5.5 V,兼容常见逻辑电平(如 3.3 V、5 V)并支持不同电源域间直接隔离。
  • 低延迟与中高速传输:12 ns 的传播延迟和 150 Mbps 的最大速率,满足多种实时控制与高速串行链路需求。
  • 多通道配置:2IN/2OUT 的配置适合双向通信或多信号隔离,提高系统集成度并节省 PCB 空间。

四、典型应用

  • 工业控制与自动化现场总线隔离(如 RS-485/RS-422 接口前端)
  • 电机驱动与功率电子控制信号隔离
  • 电力电子测量与数据采集系统
  • 医疗设备通信隔离(需结合相关医疗安全认证评估)
  • 通信设备、网关与隔离式传感器接口

五、设计与布局建议

  • 电源与地:VCCA 与 VCCB 的电源应分别近端旁路电容(如 0.1 µF 与 1 µF 组合),并且地平面在隔离两侧不要连通,保持隔离间距与爬电距离。
  • 信号完整性:对高速信号线采用短走线、匹配阻抗以及必要的下拉/上拉配置,避免长线和环路。
  • 隔离缝隙与安规距离:根据 3750 Vrms 要求在 PCB 上保留足够的隔离间距与爬电距离,必要时在隔离区使用灌封或隔离槽提高爬电距离。
  • 热管理:SSOP-16 在高温环境下注意散热,布局时避免将热源紧邻器件,以保证 -40 ℃~125 ℃ 的稳定工作。

六、封装与采购信息

  • 封装型号:SSOP-16,适合高密度板级设计,便于自动贴装与回流焊工艺。
  • 品牌:Chipanalog(川土微)
  • 应采购时注意型号后缀(温度、管脚与包装形式)与产地、批次信息,确认是否需提供额外测试资料或认证文件。

七、使用注意事项

  • 器件默认输出为低电平,系统设计时需考虑上电态与复位策略。
  • 在高共模瞬态环境下测试实际方案,验证 CMTI 与系统级抗扰能力。
  • 对于医疗或安全关键应用,需基于系统整体设计进行认证评估,器件参数为参考依据。

总体而言,CA-IS3742LB 在隔离电压、CMTI 与速度上具备良好平衡,适合需要高可靠隔离通信的工业与通信场景。

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