X5043S8-2.7

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PMIC - Supervisors: X5043S8-2.7 application field and working principle

The X5043S8-2.7 is a type of PMIC supervisor. It is designed to monitor the reset and power button inputs in mobile devices or desktops and provide control of the system level reset logic. The device features adjustable reset delay, fixed reset timeout and inherent stability of the reset switching technology in long-term operation.

The X5043S8-2.7 is a 3V start-up regulator, offering a 1.3μA start-up current and operating at 1.2V to 8V input. It also integrates a 2.1ms power-on reset generator and a 18ms power-failure reset generator. The adjustable reset delay allows the reset pulse pulse width to be tuned to the power-on sequence of the system for smooth powering up and down, enabling amore robust designs.

Application Fields

The X5043S8-2.7 can be used in a wide range of applications including automotive, battery operated systems and industrial control units. It can reportedly provide excellent compatibility with the microcontroller wake-up logic and is suitable for ultra-low power systems. The integration of the reset controller can ensure high reliability and robust application in widely varying environmental conditions.

Working Principle

The X5043S8-2.7 functions as a supervisor/controller by monitoring the reset and power button inputs. When the voltage exceeds the preset threshold of the power button, it produces a reset pulse to start the system. When the voltage drops below the threshold, it will generate a reset pulse again to reset the system. The adjustable reset delay allows the reset pulse to be tuned to the power-on sequence of the system for smooth powering up and down. This enables a more robust design.

The integrated 2.1ms power-on reset generator and 18ms power-failure reset generator provide protection from power failures and/or repeated reset of a system. The device also features a small 1.3μA start-up current, allowing for reliable operation at ultra low supply voltages, ensuring system reliability in low power applications.

Conclusion

The X5043S8-2.7 is an excellent device for use in a variety of applications and can ensure reliable system performance in a wide range of environmental conditions. The adjustable reset delay provides compatibility with system wake-up logic, allowing for a robust design. The integration of the reset controller also makes it suitable for low-power systems.

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