MAX16041TE+

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Power Management Integrated Circuits (PMICs) offer an advanced way to provide analog, digital and power management solutions to electronic systems. PMICs integrate many of the necessary functions, such as voltage regulation, current protection, temperature sensing and power sequencing, into a single integrated circuit. Supervisors are a specific type of PMIC that monitor system power and system inputs to detect potential faults or errors.

The MAX16041TE+ is a supervisor that integrates three main components into one integrated circuit: a reset (input) monitor, a power supply supervisor (PSS) and a power-on reset (POR) circuit. The MAX16041TE+ is specifically designed for applications where space and cost are major concerns, such as in automotive, telecom, digital home entertainment and consumer electronics.

Application Field

The MAX16041TE+ is an ideal solution for power sequencing, power supply sequencing and monitoring requirements in a wide range of digital applications such as automotive, telecom and consumer electronics. It has a low voltage (1.2V) and low power consumption, suitable for consumption in battery powered and portable devices. Using this device also helps to reduce product cost and board size.

The MAX16041TE+ is designed to be used with up to 4V supply voltage and is capable of monitoring two power supply or two power rail levels. It has low dropout voltage and an adjustable current limit feature built-in, making it suitable for cost-sensitive applications. It also has the ability to detect overvoltage, undervoltage and overcurrent faults and has an internal temperature sensor that provides temperature monitoring and thermal protection functionality.

Working Principle

The MAX16041TE+ includes two voltage monitors and two power supply supervisors. The two voltage monitors (VM1 and VM2) have their own independent reference inputs and alarms, so each voltage monitor can be used to monitor two different power rail levels. Additionally, the output of each voltage monitor can be used as an input for the respective power supply supervisor (PSS1 and PSS2).

Each of the power supply supervisors (PSS1 and PSS2) can monitor two separate power supplies and generate a reset if either power supply input is out of its specified range. This reset output can be used to automatically reset the system or initiate the power-on reset circuit, if activated.

The MAX16041TE+ also has an internal power-on reset (POR) circuit. This circuit monitors the power supply voltage level, and generates a reset signal when the power supply voltage is outside the specified range. The reset signal lasts for a predefined timeout and can also be used to reset the system. The POR circuit also features adjustable timeout, adjustable trip point and adjustable timeout voltage.

The integrated temperature sensor allows for temperature monitoring and thermal protection. Additionally, the temperature sensor provides feedback to the POR circuit to enable temperature dependent reset thresholds and timeouts.

In addition, the MAX16041TE+ includes built-in overvoltage and overcurrent protection, as well as an adjustable current limit. This allows the device to protect itself and the other components of the system against overcurrent, overvoltage and/or over temperature conditions.

Overall, the MAX16041TE+ can be used in a variety of applications, including automotive, telecom and consumer electronics, due to its low-voltage and low-power consumption, as well as its integrated temperature sensor, overvoltage and overcurrent protection and adjustable current limit feature.

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