X5045S8Z-2.7A

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active High
Reset Timeout:	100 ms Minimum
Voltage - Threshold:	2.92V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	X5045

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Introduction

The X5045S8Z-2.7A (X5045S8Z-2.7A) is a versatile power management IC (PMIC) from Xicor, designed for any microprocessor-based system that can utilize power management features such as voltage monitoring, voltage switching, and power sequencing. The X5045S8Z-2.7A is a member of the PMIC - Supervisors family and offers a wide range of features that make it an ideal choice for a variety of applications.

Application Field

The X5045S8Z-2.7A is a supervisors device that includes a programmable voltage monitor, voltage switch, and power sequencing controller. It is ideal for use in a microprocessor based system, providing power management features such as voltage monitoring and power sequencing. It can be used in a wide range of applications including handhelds, notebook PCs, medical equipment, industrial controls, and communication systems.The X5045S8Z-2.7A provides a choice of programmable voltage monitor levels, each with a different VCC output pin to control the on/off state of the power devices. The voltage switch has a 5V/3.3V/2.5V/2.2V voltage monitor option and a power-on reset (POR) timer with adjustable timeout period.With the integrated power sequencing controller, the X5045S8Z-2.7A can provide complete power-on sequencing with accurate delay times. It features a programmable POR timer, fault status indicator (FSL), power-good indicator (PGL), and fault detection circuit (FL). The board also provides an adjustable threshold detector (ALD) for system fault prevention. Additionally, the X5045S8Z-2.7A supports a wide range of Power Management Bus (PMBus) compatible devices.

Working Principle

The X5045S8Z-2.7A is a supervisory IC which acts as the interface between the power supplies and the system. It monitors the system\'s power rail voltages and provides an intelligent feedback loop to keep the system powered up and running.The X5045S8Z-2.7A monitors the power rail voltages and looks for conditions that cause under-voltage or over-voltage. If an under-voltage or over-voltage condition is detected, the X5045S8Z-2.7A will inform the power supplies of the situation so they can make the necessary changes to keep the voltage in an acceptable range.The X5045S8Z-2.7A also has a programmable voltage monitor, which allows users to set a threshold value for the desired voltage. If the voltage drops below or rises above this threshold, the X5045S8Z-2.7A will invoke its power-on reset (POR) timer, which can be programmed with a specific timeout period. If the voltage continues to remain outside the predetermined range for the entire duration of the timeout period, the X5045S8Z-2.7A will remove power from the system and initiate a reset.Additionally, the X5045S8Z-2.7A support a wide range of Power Management Bus (PMBus) compatible devices, allowing easy integration and control of external power supplies via a single communications port.

Conclusion

The X5045S8Z-2.7A PMIC - Supervisors device is an ideal choice for microprocessor-based systems. It provides features such as voltages monitoring, voltage switching, power sequencing, programmable voltage monitor, and power-on reset timer that make it a versatile and efficient power management IC. The integrated PMBus compatible device support allows for easy integration and control of external power supplies via a single communications port.

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