MAX34451ETN+T

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The MAX34451ETN+T is an Auto-Negotiating Inter-Integrated Circuit (I2C) bus extender and signal buffer that integrates a voltage supervisor. This integrated device is capable of operating at speeds up to 5 Mbps in both full-duplex and half-duplex modes and eliminates the need for external termination resistors. The Max34451 includes a +1.8V power supply to power the I2C bus and signal buffer. It also includes an adjustable voltage supervisor that can monitor 1.8V or 2.5V supplies.

The Max34451ETN+T is part of a Power Management Integrated Circuit (PMIC) family that provides power supply controllers, monitors, and other devices designed to help manage integrated circuits and other devices that require multiple power supply levels. The devices are designed to regulate, monitor, and control power to system devices. They feature digital input and output (I/O) functions and offer improved power supply accuracy. The devices enable flexible power management and enable power supply design optimization and integrated circuit protection monitoring.

The MAX34451ETN+T is rated for operating temperatures of -40°C to +85°C and is packaged in a 5mm x 7mm LGA. It is designed to interface with I2C compatible devices such as motor controllers, fan controllers, voltage regulators, and other power supply controllers. The device provides an adjustable voltage supervisor with an active-low reset output, an I2C bus extender with support for 1.8V and 2.5V levels, and an output buffer with programmable open-drain or inverted output capability. The device also comes with an adjustable slew-rate limit and a programmable pull-up resistor to maintain a constant I2C bus voltage.

The voltage supervisor monitors the 1.8V and 2.5V supplies and generates an active-low reset output when the supply voltage is below the set threshold. The reset output is then used to reset system devices and maintain device operation when the supply voltage drops below the set threshold. The device also includes a programmable input buffer with a pull-up resistor to maintain a constant I2C bus voltage and open-drain/inverted output capability to keep the output stable during periods of low-power operation.

The output buffer is designed to operate at speeds up to 5 Mbps in either full-duplex or half-duplex mode and eliminates the need for external termination resistors. The device also includes an adjustable slew-rate limit for improved noise immunity and programmable output drive strength for improved system-level power savings. Furthermore, the device offers improved power supply accuracy to reduce system power dissipation and improve system efficiency.

The MAX34451ETN+T is a versatile and flexible device designed for use in a wide range of applications. It is ideal for motor controllers, fan controllers, voltage regulators, I2C bus extenders, and other system power supplies. Additionally, the adjustable voltage supervisor, I2C bus extender, and output buffer offer improved system performance and power savings. The device is rated for operating temperatures of -40°C to +85°C and is packaged in a 5mm x 7mm LGA.

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