[原创] Maxim MAX14827微型低功耗双路IO链接收发方案

Maxim公司的MAX14827是微型封装低功耗双路IO-Link(IO链接)收发器,集成了工业传感器所具有的高压功能包括驱动器和稳压器,工作电压从24V到60V,具有灵活的控制接口,包括SPI和UART接口选择.此外还集成了5V和3.3V线性稳压器以及LED驱动器,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MAX14827主要特性,框图,典型应用电路以及MAX14827评估板主要特性,电路图,材料清单和PCB设计图.

The MAX14827 integrates the high-voltage functions commonly found in industrial sensors, including drivers and regulators. The MAX14827 features two ultra lowpower drivers with active reverse-polarity protection. Operation is specified for normal 24V supply voltages up to 60V. Transient protection is simplified due to high voltage tolerance allowing the use of micro TVS.

The device features a flexible control interface. Pin-control logic inputs allow for operation with switching sensors that do not use a microcontroller. For sensors that use a microcontroller, an SPI interface is available with extensive diagnostics. For IO-Link operation, a three-wire UART interface is provided, allowing interfacing to the microcontroller UART. Finally, a multiplexed UART/SPI option allows using one serial microcontroller interface for shared SPI and UART interfaces.
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