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.
The MAX14827A is available in a (4mm x 4mm) 24-pinTQFN package and a (2.5mm x 2.5mm) 25-pin waferlevelpackage (WLP) and is specified over the extended-40℃ to +125℃ temperature range.
MAX14827A主要优势和特性:
●● Low Power Dissipation for Small Sensors
• 2.3Ω/2.7Ω (typ) Driver On-Resistance
• 70mW (typ) Power Dissipation at 100mA (WhenBoth C/Q and DO Drivers Are Driving)
●● High Configurability and Integration Reduce SKUs
• Auxiliary 24V Digital Output and Input
• Selectable Driver Current: 50mA to 250mA
• SPI/Pin-Control Interface for Configuration andMonitoring
• Multiplexed SPI/UART Interface Optio...