INN2025K

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INN2025K is a special kind of power management integrated circuit (PMIC) that is used for AC DC converters, offline switchers and other similar applications. The device combines the power supply and switching elements into a single chip, providing high efficiency and quality power supply. This enables designers to reduce the size of their products, as well as making them more reliable and eliminating any need for external components.

The device is a current-mode PFC boost converter that is capable of providing a voltage as high as 400V. It has a wide input range of 2.3V to 26.5V and supports a peak current of up to 500mA. The output current is adjustable between 0 and 500mA with a maximum output power of 45W and a typical efficiency of 84%. The device also has integrated EMI filters, a precise low output voltage detection, and a wide frequency range.

The device has a built-in constant on-time (COT) and adaptive on-time (AOT) control for precise current regulation and improved efficiency in light loads. The device also features a +/-3A peak current limit circuit, an adjustable soft-start and an adjustable over-current protection (OCP) with a fixed threshold. The device also has an adjustable current limit function, with a peak current range of 0A to +3A. Additionally, the device features an adjustable power-good (PG) pin and a 1.8V regulator to power an external MCU.

The device is capable of operating at a wide input and output voltage range, allowing for a wide range of applications. The device can be used in offline switched mode power supplies (SMPS), power factor correction (PFC) and DC-DC converter applications. It can also be used as a supervisory function controller, providing error detection, EMI mitigation and system control, while monitoring the input and output voltage of the system.

In terms of performance, the INN2025K is capable of delivering an output current of up to 500mA with a maximum output power of 45W. The device is highly efficient, with a typical efficiency of 84%. In addition, the device provides a precise low output voltage detection and a wide frequency range. The device also has build-in EMI filters, adjustable soft-start and adjustable OCP, adjustable current limiting, and adjustable power-good pins, making it highly suitable for applications requiring precise current regulation.

In terms of safety, the INN2025K is designed to meet the SELV and PELV safety standards, making it suitable for low voltage applications. The device also has a thermal overload protection (TOP) which prevents overheating and ensures the overall safety of the system. Finally, the device also provides various protections, such as over-voltage, under-voltage and short-circuit protections.

In summary, the INN2025K is an ideal choice for AC DC converters, offline switchers and other such applications. It delivers a current up to 500mA with a maximum output power of 45W and a typical efficiency of 84%. The device also features temperature protection, over/under voltage protection, short-circuit protection, adjustable current limit and power-good pin, making it highly suitable for applications requiring precise current regulation. Finally, the device also meets the SELV and PELV safety standards, making it suitable for a wide range of low voltage applications.

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