MAX3486E

3.3V供电、±15kV ESD保护、12Mbps、限摆率、真RS-485/RS-422收发器


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说明

Devices in the MAX3483E family (MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E) are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and MAX3488E feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486E transmits up to 2.5Mbps. The MAX3485E, MAX3490E, and MAX3491E transmit at up to 12Mbps.

All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model.

Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.

The MAX3488E, MAX3490E, and MAX3491E feature full-duplex communication, while the MAX3483E, MAX3485E, and MAX3486E are designed for half-duplex communication.
MAX3483E、MAX3485E、MAX3486E、MAX3488E、MAX3490E、MAX3491E:引脚配置和典型工作电路 MAX3483E、MAX3485E、MAX3486E、MAX3488E、MAX3490E、MAX3491E:引脚配置和典型工作电路 放大+

关键特性

  • ESD Protection for RS-485 I/O Pins
    • ±15kV-Human Body Model
    • ±8kV-IEC 1000-4-2, Contact Discharge
    • ±15kV-IEC 1000-4-2, Air-Gap Discharge
  • Operate from a Single +3.3V Supply-No Charge Pump Required
  • Interoperable with +5V Logic
  • Guaranteed 12Mbps Data Rate (MAX3485E/MAX3490E/MAX3491E)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483E/MAX3488E)
  • 2nA Low-Current Shutdown Mode (MAX3483E/MAX3485E/MAX3486E/MAX3491E)
  • -7V to +12V Common-Mode Input Voltage Range
  • Full-Duplex and Half-Duplex Versions Available
  • Industry-Standard 75176 Pinout (MAX3483E/MAX3485E/MAX3486E)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

应用

  • 工业控制局域网
  • 集成服务数字网络
  • 分组交换技术
  • 电信
  • 用于EMI敏感应用的收发器

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

其它资源

RS-485资源
产品可靠性报告: MAX3486E.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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