INN2004K

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The INN2004K is an advanced and reliable single-channel AC/DC converter that is designed for use in low-frequency offline switching applications. It offers a variety of features including a high efficiency of up to 90 percent, a wide output voltage range of 3.3V to 25V, a wide input voltage range of 4V to 24V, and adjustable output current up to 2.6A. This AC/DC converter is suitable for lighting, illumination and telecom power applications, and is suitable for operation at high altitudes of up to 5 km.

The INN2004K is designed with a MOSFET (metal-oxide-semiconductor field-effect transistor) output stage, which provides high efficiency, low EMI (electromagnetic interference), and over-temperature protection. It also features an intelligent controller that enables the unit to maintain a constant output voltage and current even when the input voltage varies. In addition, the built-in soft start circuit prevents the unit from inrush current and overloading at the time of start-up.

The INN2004K has a broad operating temperature range of -40°C to +105°C, so it is suitable for applications in industries with high levels of environmental extremes or in unpredictable operating conditions. It also utilizes external components such as inductors and capacitors to benefit from high-frequency switching, which leads to a high-efficiency solution and low EMI.

The working principle of the INN2004K is based on a flyback topology. The switching of the output stage is determined by the control IC, which regulates the feedback voltage through the pulse width modulation (PWM) technique. The feedback voltage is compared with a reference voltage generated by an internal voltage reference. When the feedback voltage is lower than the reference voltage, the PWM signal is increased until the output voltage reaches the desired value.

In addition, the INN2004K also uses a low-voltage input design for improved power efficiency. This means that the unit can support a wide input range between 4V and 24V, allowing for a maximum input voltage of 55V. Additionally, a low-dropout voltage regulator (LDO) is integrated, so that the output voltage is kept low even when the input voltage is low. The LDO is also protected from shorts, overvoltage, and overcurrent.

Finally, the INN2004K includes built-in safety features such as overload and over-temperature protection to ensure that the unit operates reliably and safely. The built-in ESD protection on the input terminals prevents damage to the device due to electrostatic discharge. The output terminal is protected from reverse current, overcurrent, and overvoltage to prevent harm to the device and the connected load.

Overall, the INN2004K is a powerful and reliable single-channel AC/DC converter that is designed for use in low-frequency offline switching applications. It is designed with advanced features such as a MOSFET output stage and an intelligent controller, and offers a wide range of performance benefits such as high efficiency and a wide temperature range. In addition, it utilizes a flyback topology and includes safety features to help prevent damage from electrostatic discharge, overvoltage, overcurrent, and reverse current.

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