MAX3389E

2.5V、±15kV ESD保护、RS-232收发器,用于PDA和蜂窝电话

+2.5V RS-232收发器,适用于PDA HotSync


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说明

The MAX3388E/MAX3389E are 2.5V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. The MAX3388E/MAX3389E have two receivers and three transmitters. All RS-232 inputs and outputs are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge method, ±8kV using the IEC 1000-4-2 Contact Discharge method, and ±15kV using the Human Body Model.

In addition to the traditional RS-232 I/O, these devices have dedicated logic-level I/O pins for additional device-to-device handshaking. During shutdown the logic-level I/O pins are active for the MAX3389E. An internal 62Ω switch is provided to switch power to external circuitry or modules.

A proprietary low-dropout transmitter output stage enables RS-232 compatible performance from a +2.35V to +3.0V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +2.5V supply. The MAX3388E/MAX3389E are capable of running at data rates up to 460kbps while maintaining RS-232-compatible output levels.

The MAX3388E/MAX3389E have a unique VL pin that allows interoperation in mixed-logic voltage systems. Both input and output logic levels are pin programmable through the VL pin. The MAX3388E/MAX3389E are available in a space-saving TSSOP package.
MAX3388E、MAX3389E:典型工作电路 MAX3388E、MAX3389E:典型工作电路 放大+

关键特性

  • VL Pin for Compatibility with Mixed-Voltage Systems
  • Additional I/O for Hot-Sync Applications
  • ±15kV ESD Protection on Rx Inputs, Tx Outputs, LIN, and SWIN
  • Low 300µA Supply Current
  • Guaranteed 460kbps Data Rate
  • 1µA Low-Power Shutdown
  • Integrated Switch for Powering Remote Circuitry
  • Flow-Through Pinout
  • LOUT Active During Shutdown (MAX3389E)

应用

  • 电池供电应用
  • 蜂窝数据电缆
  • 手持式装置
  • PDA与PDA托架
  • 外设
  • 亚笔记本与掌上电脑

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)
ESD Protect.
(±kV)
Package/PinsBudgetary
Price
mintypnomSee Notes
MAX3388E 
2.5
3
324600.3Yes40.115
TSSOP/24
$3.60 @1k
MAX3389E 
TSSOP/24
$5.20 @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。
申请可靠性报告: MAX3389E 
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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