MAX4821ETP+

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The MAX4821ETP+ is a high performance, SPI-programmable, low-on-resistance, 2-to-1 multiplexer/analog switch. The MAX4821ETP+ is designed for use in a wide variety of industrial, automotive, and consumer applications such as battery pack current monitoring, power steering control, and power supply voltage monitoring.

The MAX4821ETP+ is designed to put low-on-resistance between two output pins while simultaneously disconnecting both inputs from the outputs. In addition, the MAX4821ETP+ allows the user to select between two inputs and disconnect both inputs if needed. The MAX4821ETP+ is available in an 8-pin TSSOP and 8-pin, 1.6mm x 1.6mm, WLP packages.

Application Field

The MAX4821ETP+ is designed for use in a wide variety of applications. From industrial, automotive, and consumer applications, the MAX4821ETP+ offers excellent on-resistance and high-frequency switch operation. This part is ideal for applications such as battery pack current monitoring, power steering control, and power supply voltage monitoring. It also has the capability to switch up to 7A of current and handle up to 35V of input voltage.

Working Principle

The MAX4821ETP+ is a 2-to-1 multiplexer/analog switch that focuses on low-on-resistance. It uses a combination of silicon-controlled rectifier (SCR) control logic and MOSFET switching elements to provide excellent ESD protection. Using a logic input from the user, the SCR control logic portion of the MAX4821ETP+ controls the connection between the two output pins, while simultaneously disconnecting both inputs from the outputs. As for the MOSFET switching element portion of the MAX4821ETP+, it is designed to put low-on-resistance between the two output pins and allows the user to select between two inputs and disconnect both inputs if needed. The MAX4821ETP+ also features an internal overcurrent protection for added reliability.

In conclusion, the MAX4821ETP+ is a highly reliable, low-on-resistance, 2-to-1 multiplexer/analog switch. Its uses in various industrial, automotive, and consumer applications make it an ideal choice for a wide variety of applications. With the capability to switch up to 7A of current with excellent ESD protection, and its internal overcurrent protection, the MAX4821ETP+ is a practical solution for any application in need of a reliable switch.

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