X5649PI-4.5A

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The X5649PI-4.5A is a highly integrated PMIC supervisory circuit that combines a low dropout voltage supervisor, low voltage detector, programmable timer, and voltage level shifter, all in a single package. As a supervisor, the X5649PI-4.5A provides precise power-on, power-off, and reset monitoring of all power rails and a wide range of voltage levels on the integrated voltage level shifter.

The X5649PI-4.5A starts by detecting the voltage of all power rails, to monitor the correct starting up or shutdown sequence of the application circuit. When the voltage is within the pre-defined range, the X5649PI-4.5A will generate an appropriate signal to indicate the power state. In case of an undervoltage or overvoltage situation, the X5649PI-4.5A will generate a reset or an alert signal, forcing the reset or shutdown of the application circuit.

The X5649PI-4.5A also integrates a programmable timer. The programmable timer can be used to create timeouts for the power-on and power-off sequences of the application circuit. The timeout can be adjusted to provide a suppressible for a power reset, or to provide a diagnostic feature for the system. In addition, the timer can provide an output pulse once the desired timeout has been reached.

The integrated voltage level shifter is useful for various applications. It is capable of generating a voltage level up to 5 V in order to cascade power schemes between different power rails. This feature is important for powering up circuits that require higher voltage levels than the supply voltage. To ensure the correct power distribution, the circuit provides current limitation, short circuit protection and inrush current limitation.

The X5649PI-4.5A can be used in a variety of applications that require precise control of the power rails. These include server systems, medical application, mobile devices, industrial systems, power supplies, and automotive electronics. With its low dropout supervisor, low-voltage detector, programmable timer, and voltage level shifter, the X5649PI-4.5A offers a comprehensive solution for monitoring, sequencing, and controlling power in complex systems.

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