LM3704YBMMX-360

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Power Management ICs (PMICs) are integrated circuits that are essential for devices and systems that require efficient power management solutions. In particular, Supervisors, sometimes referred to as Resets or Monitors, perform the task of providing a reliable power-on reset and monitoring voltage and temperature levels within systems to ensure that the system operates smoothly. In this article, we will discuss the application field and working principle of LM3704YBMMX-360, a PMIC Supervisor from Texas Instruments.

The LM3704YBMMX-360 is part of Texas Instruments\' Reset Line of Supervisors. It is a highly integrated device that provides power-on reset functionality, adjustable delay time, and open-drain reset output for system monitoring and reset delay requirements. It is designed for managing supply voltages between 1.8V and 5.5V, and utilizes a small 210-BQFN14 package size to make it highly suitable for use in space-restricted designs. It is suitable for use in automotive, industrial, and computer systems.

The primary purpose of the LM3704YBMMX-360 is to monitor the power supply voltage, and assert a reset signal when the voltage falls below a predetermined threshold. It is an active-low reset, meaning that the reset signal is active when driven low by the Supervisor. The reset signal is an open-drain type, meaning that it does not source a voltage, but rather the voltage is driven by an external pull-up resistor between supply voltages of 1.4V and 5.5V.

The LM3704YBMMX-360 also offers adjustable delay times from 500ns to 2500ns, which needs to be adjusted through an external resistor. The external resistor provides for more flexibility in setting an accurate reset delay time for any given application. It also provides a reset status flag output (RST_FLAG pin) to provide additional monitoring of the system reset status.

In conclusion, the LM3704YBMMX-360 is a highly integrated PMIC Supervisor, designed to provide reliable power-on reset and monitoring capabilities for systems. It is a suitable solution for applications that require power-on reset features and adjustable reset delay time, and the small package size makes it suitable for use in space-restricted designs.

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