MAX14850AEE+T

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Digital Isolators are becoming increasingly important devices in various consumer and industrial applications. This article will focus on the MAX14850AEE+T application field and working principle.

MAX14850AEE+T is a transmitter/receiver single-channel digital isolator based on TI’s proprietary digital isolator technology, designed to provide galvanic isolation in digital systems. MAX14850AEE+T offers 1500V isolation, wide 4.5V to 10V supply voltage range, 5Mbit/s signalling rate and packaging options that make it well-suited for applications with multiple communication channels. The device is compatible with several industry-standard buses, including I2C, UART, SPI, JTAG, and more. It also supports hot-swapping, which allows the device to automatically configure itself when it is connected to the bus.

MAX14850AEE+T isolators are ideal for isolating control signals in industrial applications such as PLCs, driverless cars, motor control, industrial internet of things (IIoT) platforms, and more. They provide a low-cost, reliable method for protecting against electrostatic discharge (ESD), induced ground loop currents, and short-duration overvoltage events. The device has a wide input/output common-mode voltage range, making it suitable for use in applications where signal source and signal load are not exactly matched.

The working principle of the MAX14850AEE+T is based on Digital Isolators’ principles. A digital isolator contains two parts – a transmitter and a receiver – that are separated by a barrier, typically an optoelectronic or transformer-based device. The data from the transmitter, after being modulated into an electrical signal, is converted into an optical signal by the optoelectronic or transformer-based device, and is transmitted across the isolation barrier to the receiver. At the receiver end, the optical signal is again converted into an electrical signal and is demodulated into the original data format.

The MAX14850AEE+T isolator also has features such as Non-volatile memory for storing user settings, failure protection with a watchdog timer, hot-swapping capabilities, and wide operating temperature range (-40°C to 125°C). The MAX14850AEE+T is RoHS compliant and is available in an 8-lead SOIC (D) package.

In conclusion, the MAX14850AEE+T is a low-cost, reliable, digital isolator that provides galvanic isolation and can handle data rates up to 5Mb/S. It is suitable for various consumer and industrial applications and is RoHS compliant. Its wide common-mode input/output voltage range makes it ideal for applications where signal source and signal load are not matched. The device is also capable of hot-swapping and has failure protection and non-volatile memory.

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