MAX13223E

±70V故障保护、3.0V至5.5V、2Tx/2Rx RS-232收发器

业内首款集成了±70V故障保护的RS-232收发器,无需外部保护


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说明

MAX13223E为+3.0V至+5.5V供电、符合EIA/TIA-232和V.28标准的通信接口芯片,在RS-232线路接口上带有故障保护功能。这使得发送器输出和接收器输入可承受±70V电压,而不会损坏MAX13223E。

MAX13223E采用Maxim的AutoShutdown™技术,具有1µA的低电源电流。当RS-232电缆断开或接收器处于无效状态时,MAX13223E自动进入低功耗关断模式。当检测到任意一路接收器输入上出现有效转换时器件再次开启。专有的高效双电荷泵架构结合低压差发送器,能够在+3.0V至+5.5V单电源供电时,实现真正的RS-232性能。

MAX13223E具有2个接收器和2个驱动器,能够在一个发送器切换工作并保持RS-232输出电平的前提下,保证250kbps的数据速率。

MAX13223E工作于+3.0V至+5.5V输入电压范围,采用20引脚、6.5mm x 4.4mm、TSSOP封装。MAX13223E工作在-40°C至+85°C温度范围。
MAX13223E:典型工作电路 MAX13223E:典型工作电路 放大+

关键特性

  • ±70V故障保护
  • +3.0V至+5.5V电源电压
  • 过压限流
  • 发送器输出具有电流保护
  • 自动关断(AutoShutdown)
  • 250kbps (最大值)数据速率
  • 关断模式下电流消耗仅为1µA (典型值)
  • 热关断保护
  • ±8kV IEC 61000-4-2接触放电
  • -40°C至+85°C工作温度范围

应用

  • 基站
  • 工业设备
  • POS终端设备
  • 电信设备
  • 远程信息处理设备
  • 电表

请查看具体的参数规格 RS-232 Line Driver/Receivers (136)


Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExternal CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX13223E 
3
3.3
5
222508Yes40.330
TSSOP/20
$2.60 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。
产品可靠性报告: MAX13223E.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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