TPS22916CNYFPT

PMIC (Power Management ICs) are devices that control the flow of power and are used in a variety of applications. Among them, power distribution switches, load drivers, and TPS22916CNYFPT are commonly used devices. This article will focus on the application fields and working principle of the TPS22916CNYFPT.

TPS22916CNYFPT Application Field

The TPS22916CNYFPT is a cost-effective power distribution switch with a maximum of 1.5 A output current, a transient withstand capability of 250V, and a maximum on-resistance of 0.4 ohms. It can be applied in switch mode power supplies, isolated AC/DC power supplies, and mobile device chargers. Furthermore, the device supports the Reverse Battery Protection and Thermal Shutdown (TSD) feature. These features generally lead to the use of the device in low-power wall adapters, USB power adapters, and laptop adapters.

TPS22916CNYFPT Working Principle

The TPS22916CNYFPT is a monolithic power distribution switch with two independent channels and a common enable feature. It works on the principle of dynamic low-side switching, which helps to switch power supply according to the changing needs of the system. When the enable input is high, both channels will be switched, and when it is low, both channels will be turned off. The device also has several features such as dynamic current foldback, which limits the output current during peak load conditions.

The dynamic current foldback feature helps in limiting the current during the peak load conditions. This is done by considering the average input capacitance of the different load stages and adjusting the current accordingly. This feature helps in maintaining the output voltage, thus making the device more efficient.

The TPS22916CNYFPT also features reverse battery protection and thermal shutdown. Reverse battery protection prevents current reversal if the device is attached to sources of different polarities and helps to protect the system from short-circuiting. Thermal shutdown protects the system from high temperature and maintains the temperature below the Maximum Allowable Junction Temperature.

Conclusion

The TPS22916CNYFPT is a cost-effective power distribution switch with several features such as dynamic current foldback and reverse battery protection. It has a maximum output current rating of 1.5A and a transient withstand capability of 250V. It is widely used in switch mode power supplies, isolated AC/DC power supplies, and mobile device chargers. It works on the principle of dynamic low-side switching and helps maintain the output voltage stability.