WMSIC Electronic Components

COSINE COSMAX3222

ModelCOSMAX3222
PackageTSSOP-20
BrandCOSINE
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
COSINE COSMAX3222
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COSMAX3222
Electronic Component
1
Package
TSSOP-20
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.172g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0265013200
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Receiver
2
Data
250Kbps
Static Current
0.4mA

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

COSMAX3222 产品概述

一、产品简介

COSMAX3222 是科山芯创(COSINE)推出的一款双驱动器、双接收器的 RS-232 收发器,内置双电荷泵电路,可在单一 3V 至 5.5V 电源下直接产生 RS-232 所需的电压摆幅,满足 TIA/EIA-232-F 标准。器件集成度高、功耗低、工作稳定,适用于多种串行通信场景。

二、主要特性

  • 接口类型:收发器(2 路驱动器、2 路接收器)
  • 工作电压:3.0V ~ 5.5V(单电源工作)
  • 电荷泵:内置双电荷泵,外接四只小型电容完成电平转换
  • 数据速率:最高可达 250 kbps,适配常见 UART 波特率
  • 静态电流:典型 0.4 mA,适合电池供电与低功耗应用
  • 保护功能:驱动器短路保护,增强可靠性
  • 工作温度:-40 ℃ ~ +85 ℃(工业级)
  • 封装:TSSOP-20

三、优势说明

  1. 单电源设计:借助内部电荷泵与四个外部电容,COSMAX3222 在 3V~5.5V 单电源条件下即可生成符合 RS-232 水平的正/负电压,简化电源设计。
  2. 低静态电流:典型静态电流仅 0.4 mA,有利于降低系统待机功耗,延长便携式或电池供电设备使用时间。
  3. 保护机制:内置短路保护,能在外部负载异常时限制电流,提升系统可靠性并降低故障风险。
  4. 兼容性好:符合 TIA/EIA-232-F 标准,可直接与异步通信控制器(UART)和传统串口设备对接。

四、典型应用

  • 工业控制设备的串口通信(PLC、HMI 等)
  • 嵌入式系统与单片机(MCU)串口扩展
  • 通信设备与调制解调器(Modem)
  • POS 机、打印机、楼宇对讲等带 RS-232 接口的外设
  • 需长线传输或电平隔离的串口链路

五、设计与使用注意事项

  • 电荷泵电容:器件需外接四个小型电容完成电荷泵回路,常用 0.1 µF 陶瓷电容以保证电荷泵稳定。布板时尽量将这些电容靠近器件引脚放置并短路径连地。
  • 去耦与电源滤波:建议在 VCC 处并联 0.1 µF 至 1 µF 陶瓷去耦电容,以抑制电源噪声并稳定电荷泵工作。
  • 短路保护使用:虽然器件带有短路保护,但在系统设计中仍应避免长期短接或超负载工作,必要时可外接保险元件或限流电阻作为二次保护。
  • 温度与散热:工作温度范围为 -40 ℃ 至 +85 ℃,在高温环境或高密度布局中留意整体散热与可靠性评估。

六、封装与采购信息

COSMAX3222 提供 TSSOP-20 封装,适合 SMT 贴装。品牌:COSINE(科山芯创)。在选型时请确认具体器件编号、引脚功能和最小订购量,参考器件数据手册以获取完整电气参数、热特性与应用电路图。

七、总结

COSMAX3222 以单电源、低功耗和高可靠性为核心优势,为需要 RS-232 电平接口的嵌入式与工业应用提供简洁可靠的方案。其双驱动、双接收配置和短路保护特性,使其在串口通信场景中具备良好的实用性与抗干扰能力。选型时结合具体系统电源、工作温度和布局要求进行验证,可有效提升产品的通信稳定性与使用寿命。

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