[原创] Maxim MAX14827A低功耗超小型IO-Link收发器解决方案

Maxim公司的MAX14827A是低功耗超小型双驱动IO-Link收发器,工作电压从通常的24V到高达60V,具有灵活控制接口,引脚控制逻辑输入允许开关传感器不需要微控制器(MCU),集成了3.3V和5V线性稳压器,主要用在工业传感器,IO-Link传感器和激励器以及安全应用.本文介绍了MAX14827A主要优势和特性,框图,典型应用电路图以及MAX14827评估板EVK主要特性,电路图,材料清单和PCB设计图.

The MAX14827A integrates the high-voltage functionscommonly found in industrial sensors, including driversand regulators. The MAX14827A features two ultra lowpowerdrivers with active reverse-polarity protection.

Operation is specified for normal 24V supply voltagesup to 60V. Transient protection is simplified due to highvoltage tolerance allowing the use of micro TVS.

The device features a flexible control interface. Pincontrollogic inputs allow for operation with switchingsensors that do not use a microcontroller. For sensors thatuse a microcontroller, an SPI interface is available withextensive diagnostics. For IO-Link operation, a three-wireUART interface is provided, allowing interfacing to themicrocontroller UART. Finally, a multiplexed UART/SPIoption allows using one serial microcontroller interface forshared SPI and UART interfaces.

The device includes on-board 3.3V and 5V linearregulators for low-noise analog/logic supply rails.
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