WMSIC Electronic Components

Chipanalog CA-IS3721HG

ModelCA-IS3721HG
PackageSOIC-8-300mil
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 Option 64858

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
Chipanalog CA-IS3721HG
Type
CHIPANALOG
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CHIPANALOG
Electronic Component
CA-IS3721HG
Electronic Component
1
Package
SOIC-8-300mil
Electronic Component
Isolated
Electronic Component
0.969g
Electronic Component
1
CMTI(kV/us)
100kV/us
Features
Output
Electronic Component
BM0265084844
Operating Temperature
40℃~+125℃
Output
Level
Channel Count
1
Channel Count
1
(tpd)
8ns

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

CA-IS3721HG 高速数字隔离器产品概述

一、产品定位与核心价值

CA-IS3721HG是川土微(Chipanalog)推出的单通道双向高速数字隔离器,针对工业自动化、电力电子、通信设备等领域的严苛需求设计,核心解决三大痛点:

  1. 电气隔离避免不同电压域/地回路的干扰串扰;
  2. 高速传输满足数据链路的带宽要求;
  3. 宽电压/温度适应性适配复杂应用场景。
    产品兼顾性能与可靠性,是替代传统光耦的高效升级方案。

二、关键性能参数解析

CA-IS3721HG的核心参数直接匹配工业级应用的严苛要求,关键指标如下:

  1. 通道配置:1正向+1反向通道,支持双向信号传输,无需额外配置单向隔离器,简化系统设计;
  2. 传输速率:最大150Mbps,满足工业通信(如Modbus、CAN FD扩展)、通信设备(如光模块数据链路)的高速传输需求;
  3. 隔离性能:
    • 隔离电压(Vrms):5000Vrms,符合UL1577安全标准,可隔离高压侧(如1000V以上)与低压侧(如3.3V/5V);
    • 共模瞬态抑制比(CMTI):100kV/μs,抗共模干扰能力强,在高压设备瞬态电压变化(如逆变器开关)下,仍能保持信号完整性;
  4. 信号延迟:传播延迟(tpd)仅8ns,低延迟保证多通道信号同步,适合伺服控制、实时通信等对时序敏感的场景;
  5. 默认输出:上电默认输出高电平,避免上电过程中输出不稳定导致的系统误动作,提升可靠性。

三、电气特性与工作环境

CA-IS3721HG的电气与环境适应性覆盖工业级全场景:

  1. 宽电压供电:
    • 输入侧电源(VCCA):2.5V~5.5V;
    • 输出侧电源(VCCB):2.5V~5.5V;
      支持跨电压域通信(如3.3V控制板与5V功率板隔离),无需额外电平转换电路,简化BOM;
  2. 工业级宽温:工作温度范围-40℃~+125℃,适配户外充电桩、车间高温伺服驱动器等极端温度场景;
  3. 电平兼容性:逻辑电平与电源电压匹配,支持TTL/CMOS电平,适配主流微控制器、FPGA等数字芯片。

四、封装与典型应用场景

  1. 封装形式:SOIC-8-300mil标准封装,体积小巧(与传统8脚光耦兼容),PCB布局灵活,支持回流焊工艺,便于批量生产;
  2. 典型应用:
    • 工业自动化:PLC数字I/O模块(隔离现场传感器与控制单元)、伺服驱动器(隔离功率模块与控制板);
    • 电力电子:充电桩BMS与充电机通信(隔离高压侧与低压侧)、光伏逆变器(隔离DC/AC回路与控制单元);
    • 通信设备:光模块数据链路(隔离光收发器与基带芯片)、基站射频前端(隔离数字控制与射频电路);
    • 汽车电子:辅助驾驶传感器与ECU隔离、车载充电系统(隔离高压电池与低压控制)。

五、产品优势总结

相比传统光耦,CA-IS3721HG具备明显优势:

  • 无发光二极管老化问题,寿命更长;
  • 高速传输(150Mbps vs 光耦通常<10Mbps);
  • 低延迟(8ns vs 光耦通常>50ns);
  • 宽电压/温度范围,适配更多场景;
  • 双向通道,简化系统设计。

川土微CA-IS3721HG凭借高隔离性能、高速传输与宽适应性,成为工业、电力、通信等领域数字隔离的优选器件。

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