MAX33073E

+3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD

Industry's Highest Common-Mode Range RS-485 at ±40V, with Highest ESD at ±40kV and ±65V of Fault Protection


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说明

The MAX33072E/MAX33073E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. Both devices have ±40V of common-mode range (CMR) within VCCH (+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD HBM (human body model) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5V supply voltages across multiple end equipment.

These devices feature a polarity selection input (POL) that swaps the A and B data lines, allowing for software correction of cross-wired field cables.

The MAX33072E features slew-rate-limited outputs for data rates up to 500kbps, while the MAX33073E is rated up to 2Mbps for applications requiring higher bandwidth. These transceivers are optimized for robust communication in noisy environments. A true failsafe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8 unit load input impedance, allowing up to 256 transceivers on a bus. The MAX33072E/MAX33073E are available in 8-pin SOIC and operate over the -40°C to +125°C temperature range.

MAX33072E, MAX33073E: Simplified Block Diagram MAX33072E, MAX33073E: Simplified Block Diagram 放大+

关键特性

  • Integrated Protection for Robust Communication
    • Protection on Driver Outputs/Receiver Inputs (A, B Data Lines)
      • ±65V Fault Protection Range on Driver Outputs/Receiver Inputs
      • ±40V Common-Mode Range on Driver Outputs/Receiver Inputs
      • ±40kV Human Body Model (JEDEC JS-001-2017) ESD Protection
      • ±15kV Air Gap Discharge (IEC 61000-4-2) ESD Protection
      • ±10kV Contact Discharge (IEC 61000-4-2) ESD Protection
    • Hot-Swap Protection
    • Short Circuit Protection
    • Thermal Shutdown
    • True Fail-Safe Guarantees Known Receiver Output State
    • Wide Operating Temperature Range from -40°C to +125°C
  • High-Performance Transceiver Enables Flexible Designs
    • Compliant with RS-485 EIA/TIA-485 Standard
    • 500kbps (MAX33072E), 2Mbps (MAX33073E) Maximum Data Rate
    • 3V to 5.5V Supply Range
    • 1/8 Unit Load for up to 256 Devices on the Bus

应用

  • null
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  • HVAC
  • 工业自动控制
  • 运动控制器
  • null

请查看具体的参数规格 RS-485/RS-422 Line Driver/Receivers (208)


Part NumberTx/RxDuplexVSUPPLY
(V)
Fault Protect.
(±V)
ICC
(mA)
Data Rate
(kbps)
ESD Protect.
(±kV)
Tx ENRx ENRx/Tx on BusRx Failsafe w/ InputsOper. Temp.
(°C)
Package/PinsBudgetary
Price
typminSee Notes
MAX33072E NEW!1Tx + 1RxHalf3.0 to 5.565350040YesYes256Open or Shorted-40 to +125
SOIC (N)/8
$2.04 @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。

MAX33072ESHLD: Evaluation Kit for the MAX33072E
申请可靠性报告: MAX33073E 
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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