X40421V14I-CT1

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The X40421V14I-CT1 is a PMIC (Power Management IC) Supervisors. It is a single, low-power, integrated solution to various low voltage power monitoring and supervisory requirements. This device is designed to accurately monitor multiple supply voltages, provide reset control and open drain interrupt outputs, as well as power on reset (POR) control and manual reset input. The X40421V14I-CT1 combines advanced circuitry and technology to facilitate low voltage power management and provide cost savings in comparison to discrete solutions.

The application fields for X40421V14I-CT1 include Smart Home appliances, battery-powered portable devices, PC/peripheral interface products, and embedded or portable systems. It is suitable for monitoring a wide range of input voltages from 2.7V to 5.5V. This IC also integrates a one-time Programmable Low Voltage Detect (LVD), an adjustable System Reset output, an active-low interrupt output, and a power-on reset (POR) output.

The X40421V14I-CT1 has two reset outputs, one open drain reset output (SYSRST) and the other a latch reset output (POR). The SYSRST has an adjustable reset voltage threshold and can be used to generate the reset signal while the POR (power on reset) has a fixed reset threshold voltage with debounce logic and manual reset input capability. The adjustable reset threshold allows the selection of the reset voltage according to system requirements for functional safety, as well as an adjustable delay time for specified system requirements.

Besides the reset outputs, X40421V14I-CT1 also provides interrupt output, which will be activated when the voltage at the monitored Vss pin drops below the preset lower voltage threshold. A reset signal is not activated on the interrupt output pin, and must be counted manually. The open drain interrupt output pin, INT, is ideal for integrating system power management alerts or similar error events.

The working principle behind X40421V14I-CT1 is simple. The device is powered by a low voltage power supply, and it monitors the voltage at its Vss pin. When the voltage drops below the programmable voltage threshold, it will send a reset signal to the reset outputs and activate the interrupt signal. The adjustable reset threshold allows various reset voltage points to be set according to system requirements. The manual reset input allows users to trigger an immediate reset signal.

X404215V14I-CT1 is an ideal solution for various power monitoring and supervisory requirements. Its wide range of features, including adjustable voltage threshold reset, open drain interrupt output and manual reset input, make it suitable for a variety of applications. The simple working principle and cost efficient design make it an ideal choice for designers of Smart Home appliances, battery-powered portable devices, PC/peripheral interface products, and embedded or portable systems.

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