INN2214K

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PMIC or Power Management ICs are widely used in a variety of power system applications. Today, the market is flooded with several types of PMICs for different domains like AC-DC converters, offline switchers, etc. One of the widely used off-line switchers is the INN2214K PMIC. It is highly efficient, compact and cost effective. In this article, we will discuss in detail about the application field and working principle of the INN2214K.

Application Field

The INN2214K PMIC is widely used in power system applications such as lighting, energy management, UPS systems, battery chargers, solar energy, machinery and many other applications. It is especially suitable for switch mode power supplies working at frequency ranges of up to 36kHz. With its high efficiency, low power losses and wide compatibility, it is widely adopted in electronic products and devices that require constant monitoring of current and voltage.

Working Principle

The INN2214K works on the principle of forward voltage control. It consists of two main components - a power FET and an optically-isolated gate driver. During operation, the power FET stops conducting due to an over-voltage event, and the driver circuit is enabled via a feedback circuit. The feedback circuit monitors the input voltages and feed this information to the opto-coupler which then triggers the gate drive of the power FET, thus allowing it to start conducting again.

The INN2214K also consists of several protection circuits that protect the circuit from any interference. These include over temperature protection, input voltage protection, over-current protection, and others. Additionally, the INN2214K has an isolated windings designed to ensure that all the electronic components remain isolated from each other. This is important because of the various noise sources present in the power supplies.

Conclusion

The INN2214K is a highly efficient and compact PMIC that is used in a wide range of power supply applications. It utilizes forward voltage control to ensure that the power FET stops conducting during an over-voltage event, and then resumes its operation. In addition, it also has several protection circuits which protect the circuit from different noise sources.

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