E-UC2842BN

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PMIC - AC DC Converters, Offline Switchers are essential components in a variety of electronic devices as they are capable of converting Alternating current (AC) to Direct current (DC) for efficient power supply. Despite being one of the oldest technologies, it continues to be widely used in many industrial and commercial applications due to its efficiency and reliability. The E-UC2842BN is an offline switching regulator that falls under this category of power conversion. It is designed to provide a reliable, efficient and cost-effective power solution capable of providing a single adjustable output voltage of 0.6V to 5V @ 3A. The device also features an over-temperature protection (OTP) with thermal shutdown and cycle-by-cycle peak current limiting.The E-UC2842BN integrates an advanced peak current detection control with low ripple to minimize device output noise and ripple voltage. In addition, the switching frequency is adjustable up to 100KHz via an external resistor, which allows for a wider range of compatibility in different loads. The device also features a soft-start from 2ms to 4 seconds to reduce inrush current and ensure effective operation.The E-UC2842BN is based on the pulse-width modulation switching (PWM) topology and its working principle is quite simple. The AC power received is rectified and converted into a DC voltage. This voltage is then fed to the PWM switch to generate a sawtooth waveform of the load current and compared to the voltage feedback from the output stage. The pulse width modulation controller will then adjust the duty cycle of the switch output to control the output voltage. This process is done repeatedly until the output voltage reaches the set point and the desired regulation is accomplished. Finally, the output will go into a low-ripple filter to get the desired output voltage. The E-UC2842BN is widely used in various applications such as industrial equipment, home appliances, lighting, non-isolated Power Supply, battery charging, telecommunications systems and many more. The device is equipped with multiple protections to ensure a reliable operation such as power MOSFET over-current protection (OCP) with dead-short capability, UVLO, OVP, temperature protection, load disconnection and overload protection.The device is an ideal choice for all applications where reliability, efficiency and cost-effectiveness are the key requirements. Moreover, its versatile design, wide input, and adjustable voltage range make it a go-to solution for applications requiring a reliable and easy to implement power solution.

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