INN2904K-TL

Introduction

INN2904K-TL is a PMIC - AC DC Converters, Offline Switchers. It is a small and simple, yet powerful and highly efficient two-level boost/flyback converter that operates over a wide supply voltage range (88VAC - 265VAC). It has various features including built-in over voltage, under voltage, current limit and thermal protection features that make it suitable for all types of applications. It also incorporates a low ripple output voltage and a robust switching frequency of up to 20kHz. Furthermore, due to its wide voltage range, it has the ability to bridge the gap between AC and DC supplies, making it ideal for any application.

Application Field and Working Principle

INN2904K-TL is primarily used in applications such as circuit protection, residential AC/DC power supplies, cellular base stations and telecom power systems. Its wide operating voltage range makes it suitable for varied applications. The output voltage is adjustable via an external computer interface and the voltage is also protected against over-voltage, under-voltage and over-temperature conditions. The integrated overload protection ensures that the output voltage is not exceeded and is within the specified range. The device also has the ability to efficiently regulate the output voltage in the event of a fluctuating input voltage.

The INN2904K-TL is based on a two-level boost/flyback architecture and it controls the voltage output of the power supply for a predetermined time period. The device is designed to generate a single output voltage or multiple output voltages from an AC or DC input. The other operating parameters, such as switch frequency and current limit, are programmable via an external interface.

The two-level boost/flyback converter is based on the principle of two cascaded converters and the power transfer takes place between two stages. The two converters are connected in series and the output voltage is regulated by a feedback loop. The output voltage is also protected against over-voltage and under-voltage conditions by a comparator. The device also features a soft-start function that reduces stress on the components and improves the efficiency of the power supply.

Conclusion

INN2904K-TL is a small and simple, yet powerful and highly efficient two-level boost/flyback converter. It operates over a wide supply voltage range (88VAC - 265VAC) and provides protection from over-voltage, under-voltage and over-temperature conditions. Its wide operating voltage range makes it suitable for a variety of applications and its low ripple output voltage and robust switching frequency makes it an ideal choice for any AC or DC power supply needs.