MAX251

5V、隔离型、RS-232驱动器/接收器


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说明

The MAX250 and MAX251 chip set form the heart of a complete, electronically isolated, RS-232 dual transmitter/receiver. By combining many functions on two chips, the cost and complexity required for an isolated digital interface is greatly reduced. Four low cost optocouplers, four capacitors, a diode and a small pot-core type transformer are all that are required to complete a 19.2k baud transceiver. Faster data rates are possible by using high speed optocouplers. In addition to the driving and receiving circuitry for the optocouplers, the chip set includes a push-pull transformer driver to supply power to the interface's isolated side.

Other convenient features include single +5V operation, a low power shutdown mode, and output enable control for three-state operation. The MAX250 and MAX251 are supplied in 14 lead DIP, 14 lead small outline and 20 leadless chip carrier packages.

The MAX252 has all the required components for RS-232 communication in a single package.
MAX250、MAX251:引脚配置 MAX250、MAX251:引脚配置 放大+

关键特性

  • Isolated Data Interface
  • Single +5V Supply
  • Uses Low Cost Optocouplers
  • 5µW Power Shutdown
  • 2 Transmitters and 2 Receivers

应用

  • 桥接地电位差
  • 数据链路至模拟电路
  • 强噪声环境中的数据通信
  • 工业通信
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpPackage/PinsBudgetary
Price
mintypSee Notes
MAX250 5221160.1Yes
CDIP/14
PDIP/14
SOIC (N)/14
$4.18 @1k
MAX251 
CDIP/14
PDIP/14
SOIC (N)/14
查看所有RS-232 Line Driver/Receivers (136)
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。

质量和环境数据

产品可靠性报告: MAX251.pdf 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX2510EEI
  • MAX2510EEI+
  • MAX2510EEI+T
  • MAX2510EEI-T
  • MAX2511EEI
  • MAX2511EEI+
  • MAX2511EEI+T
  • MAX2511EEI-T
  • MAX251CPD
  • MAX251CPD+
  • MAX251CSD
  • MAX251CSD+
  • MAX251CSD+T
  • MAX251CSD-T
  • MAX251EJD
  • MAX251EPD
  • MAX251EPD+
  • MAX251ESD
  • MAX251ESD+
  • MAX251ESD+G071
  • MAX251ESD+T
  • MAX251ESD+TG071
  • MAX251ESD-C78042
  • MAX251ESD-T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    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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