S-80843CLUA-B64T2U

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Power management integrated circuits (PMICs) are designed to provide power to multiple components in a system by regulating, overriding and supervising power supply within the device. PMICs are commonly classified according to their application field (e.g., mobile power management, low power devices, memory devices, etc.). There are hierarchical types of PMICs such as system PMICs, PMICs with digital inputs and PMICs designated as supervisors. This article will discuss the S-80843CLUA-B64T2U PMIC and its application field, as well as its working principle.

S-80843CLUA-B64T2U Overview

S-80843CLUA-B64T2U, from SII Semiconductor Solutions Corporation, is a PMIC specifically designed to fulfill the power management requirements of a variety of embedded applications. This device features an integrated overvoltage protection, as well as low-power loss reverse protection and overvoltage monitoring. It also provides various other features such as brownout detection, undervoltage detection, dynamic voltage scaling and OVP lockout. These features allow the system to maintain optimal performance and energy efficiency while operating under harsh conditions.

Application Field

The S-80843CLUA-B64T2U is designed for use in battery-powered mobile and portable applications. It is usually used in applications such as smartphones, tablets, digital cameras, personal media players and portable audio devices. With its robust overvoltage protection and OVP lockout feature, the device is also suitable for systems requiring reliable voltage regulation. Furthermore, due to its high operating temperature range, it is suitable for automotive applications as well.

Working Principle

The S-80843CLUA-B64T2U functions as a power supervisor. It actively monitors the voltage of the system\'s power bus and takes corrective action when it detects power supply problems. When the system moves from an unstable state to a stable one, the PMIC turns off the weak power source and supplies power from the remaining good power source.

The S-80843CLUA-B64T2U uses a 4-pin regulator and provides reverse power protection. Whenever a negative voltage is applied to the regulator, the PMIC will disable the regulator and protect the components connected to the power bus. Similarly, if an overvoltage is detected, the PMIC will turn off the regulator output, protecting the system from overcurrent damage.

The S-80843CLUA-B64T2U also supports dynamic voltage scaling. This feature allows the device to automatically adjust the voltage level to meet the system\'s performance needs. By dynamically scaling the output voltage, the system can maintain optimal performance without compromising battery life.

S-80843CLUA-B64T2U also provides several other safety features such as an overvoltage lockout and an undervoltage lockout. The overvoltage lockout feature prevents the regulator from delivering too much power to the system, which can cause severe damage. The undervoltage lockout prevents the output voltage from falling below predefined thresholds, protecting the system from data and component losses.

Conclusion

The S-80843CLUA-B64T2U PMIC is a versatile power management integrated circuit designed for use in mobile and embedded applications. Through the integrated reverse power and overvoltage protection and dynamic voltage scaling features, the device can provide reliable power to the system while eliminating any damage caused by power supply issues. Furthermore, its robust safety features ensure optimal performance and battery life.

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