X4325V8I

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Modern development in technology has meant the requirement for more complex processes in the form of integrated circuit (IC)or systems on chip (SoC). The X4325V8I is a precision voltage detector from Exar Technologies that is designed for use in PMIC - Supervisors. This miniature system-in-package (SIP) solution is composed of five two-voltage comparators and a highly accurate reference monitor. This article will examine the X4325V8I\'s application field and working principle.

Application field

The X4325V8I is suitable for various applications including multi-supply monitoring, microprocessors and logic voltage monitoring, filter power supply monitoring, and dual-voltage monitoring and detection. This 5-channel precision voltage detector offers superior accuracy and versatility, making it a great choice for various applications.

The X4325V8I is capable of detecting accurate voltages that may include up to six supply voltages including 3.3V and 5V. It is also capable of detecting low-voltage input sources from unregulated sources such as DC wall supplies, USB and PCI-Express (PCIe) power supplies, as well as regulated sources. It is also ideal for use in voltage monitoring and detection for microprocessor power supply applications such as Intel P4 and AMD Athlon/Opteron.

The X4325V8I is also useful for use in monitoring and detection of dual-voltage voltages from unregulated sources such as DC wall supplies, USB and PCIe power supplies, as well as regulated sources. It is ideal for use in power supply sequencing, sequencing level monitoring, 3-wire fan speed controllers, over voltage protection, and PC health monitoring applications. It is also capable of providing over voltage protection and warning levels for applications with wide varying input voltages.

The X4325V8I is also well-suited for use in multiple voltage monitoring and protection applications due to its small size, fast response time, and high accuracy.

Course of work

The X4325V8I features five independent two-voltage comparators and a highly accurate 3.2V reference monitor. It utilizes Exar\'s patented Advanced Detection Circuitry, which is capable of quickly detecting critical voltages. This circuitry is also highly accurate and provides up to 50mV resolution for precision voltage monitoring and detection.

With its precise comparisons and low-voltage detection capabilities, the X4325V8I is capable of providing a rich system level accuracy of up to 0.5%. It also features a fast response time of up to 2 µs. This eliminates the need for external components such as resetting capacitors and enables the X4325V8I to perform extremely precise voltage monitoring.

The X4325V8I also includes Exar\'s patented voltage trigger threshold functionality. This functionality can be used to set a precise trigger threshold on each channel to enhance system protection. The voltage trigger threshold can be set to any voltage between 1.5V and 5V, depending on the application.

The X4325V8I also includes a power-save mode that optimizes system power consumption. This mode reduces the current consumption of the device by automatically switching the device into a low-power standby state when it is not in use.

Conclusion

The X4325V8I is an ideal solution for precision voltage monitoring and detection in PMIC - Supervisors applications. With its small size, high accuracy, fast response time, and accurate voltage detection capabilities, the X4325V8I is a great choice for use in a variety of systems. It is also well-suited for use in multiple voltage monitoring and protection applications due to its small size, fast response time, and high accuracy.

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