INN2003K-TL

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The INN2003K-TL is an offline switch-mode power supply designed for AC-DC microcontroller power applications. It is a PMIC (power management integrated circuit) device which integrates high-efficiency AC-DC power conversion components into a single chip solution. This makes the INN2003K-TL a very attractive solution for many applications including home entertainment, computer peripherals, smart phones, and other high-efficiency power applications.

The INN2003K-TL is a flyback power conversion solution which uses a high frequency transformer to provide Galvanic Isolation between the mains AC voltage and the output DC voltage. The transformer also acts as an inductor for the converter. The working principle of the converter is based on a primary-side control concept employing a valley switching characteristic. Primary-side control eliminates the need for an opto-coupler and a secondary-side feedback loop. This makes the design simpler and more efficient as compared to a conventional off-line flyback converter with an opto-coupler. The INN2003K-TL has an embedded high-voltage startup circuit which is automatically activated on mains turn-on. The high-voltage startup circuit provides the necessary high-voltage spike to the primary-side of the transformer to begin the switch-mode operation. This makes the design very easy to implement in most applications.

The INN2003K-TL is designed to provide a high level of energy efficiency. It has a minimum efficiency of over 85% at full load, which means it can quickly convert the AC mains into regulated DC power with minimal energy loss. It also offers a low standby power consumption of 7mW. The low standby power consumption is beneficial in applications requiring low power consumption, such as energy efficient lighting solutions, smart phones, and other electronic gadgets.

The INN2003K-TL features built-in protection features, such as over voltage protection (OVP), short circuit protection (SCP), and over temperature protection (OTP). These protection features provide enhanced safety for both the user and the product. The settings for these protection features can be easily adjusted to suit the specific application requirement.

The INN2003K-TL has a wide range of output voltage adjustment and output power adjustment capabilities. The output voltage range is from 5V to 24V, and the output power range is from 3W to 5W. The output voltage can be adjusted by the internal pins provided and the output power can be adjusted by changing the values of the internal feedback loop components.

In summary, the INN2003K-TL is a low-power, high-efficiency, offline switch-mode power supply designed for AC-DC microcontroller power applications. The device integrates a highly efficient, primary-side controlled flyback converter with built-in protection features, wide output voltage and power range, and low standby power consumption into a single chip solution. This makes the INN2003K-TL a very attractive and cost-effective solution for many applications including consumer electronics, computer peripherals, smart phones, and other energy-efficient applications.

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