X4165V8-4.5A

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PMIC (Power Management Integrated Circuits) are used in a wide variety of applications, ranging from automotive electronics to home appliances. In the realm of power management, one of the most common components is the supervisor. X4165V8-4.5A is a popular supervisor IC from Xilinx, which can be used to monitor power supply voltages and protect sensitive components from overshoots and other dangerous conditions. In this article, we will discuss the application field and working principle of X4165V8-4.5A.

Application Field Of X4165V8-4.5A

X4165V8-4.5A can be used in a wide range of applications, including digital, logic and mixed-signal systems. It is designed to protect sensitive system components from overvoltage and/or undervoltage conditions. Its ultra-low quiescent current and wide operating temperature range make it ideal for applications in battery-powered and harsh environment applications. It is also widely used in real-time monitoring, with temperature monitoring, reset generation, and LED control all possible. Other applications include server power supplies, process control systems, and many others.

Working Principle Of X4165V8-4.5A

The X4165V8-4.5A is an advanced, low-power supervisor IC with integrated voltage-level detection, reset generation and supply monitoring. It compares an external reference voltage (VREF) to an internally selectable voltage divider (VOUT) to detect either under-voltage or over-voltage conditions. When a threshold is exceeded, the IC will generate a system reset, enabling it to protect the connected circuitry from runaway processes or erroneous data states.

The voltage threshold (T1) and the reset delay time (tD) can be set by two external resistors. The T1 threshold determines the level at which the IC will generate a system reset, while the tD resistor allows the user to adjust the reset delay time. This ensures that the reset signal is generated precisely when the threshold has been reached and the system is deemed stable.

The IC can operate in either the impulse mode or the latching mode. In the latching mode, the reset will remain active until the power supply is cycled, allowing the user to observe and troubleshoot the issue without the need to manually reset the supervisor. In the impulse mode, the reset is switched off automatically by the built-in voltage sense circuit, eliminating the need for manual resetting.

The IC also has various protection features, such as reverse polarity protection, short circuit protection, and over-temperature protection. The reverse polarity protection prevents damage caused by reversed power supply connections, while the short-circuit protection prevents system damage if the output pins become shorted. Last but not least, the over-temperature protection prevents damage caused by high temperatures.

In conclusion, X4165V8-4.5A is a popular supervisor IC from Xilinx, which can be used in a wide range of applications, ranging from digital, logic and mixed-signal systems to harsh environment applications. Its integrated voltage-level detection, reset generation and supply monitoring enable the user to protect sensitive system components from overshoots and other dangerous conditions. The various protection features also add an extra layer of safety, making the IC an excellent choice for many applications.

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