UCC2810N

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The UCC2810N is a highly specialized power management integrated circuit (PMIC) designed for use in a variety of offline switcher and AC/DC converter applications. The device offers a low parts count, high efficiency, low output ripple and excellent line regulation. It is designed to provide reliable and cost-effective power supply solutions for a variety of applications.

The UCC2810N incorporates a dual-channel current-mode pulse-width-modulation (PWM) controller optimized for low cost, high-efficiency AC/DC converters. The high-speed PWM structure features independent oscillator control which allows the user to select the switching frequency that best suits their application. Both PWM-modes (continuous current-mode and periodic-current-mode) are supported for fast loop response as well as low-noise operation.

The device also offers superior output ripple control with the selection of either synchronous rectification or freewheeling diode networks. An internal error amplifier is also included, which enables single loop feedback implementation. Additionally, the UCC2810N offers protection features such as cycle-by-cycle current limit and voltage peaks limiting.

The UCC2810N is capable of providing up to 8 A continuous output current in a very compact 8-pin plastic-packaged device. The device is simply to configure and provides excellent performance and efficiency, making it an ideal choice for a wide range of AC/DC converter and offline switcher applications. The wide selection of feedback control algorithms, combined with the innovative protection features, provides a high level of flexibility for cost-sensitive designs.

The working principle of the UCC2810N is based on the PWM control architecture. In this system, the output voltage is regulated through the pulse-width modulated switching of an external power MOSFET. The pulse-width modulated control is based on the voltage feedback from the load, which is compared to an internally generated reference voltage. The controller will then adjust the on-duty cycle to maintain the output voltage at the desired value.

The output regulation is made more accurate by using an internal error amplifier, which compares the output voltage to an internally generated reference voltage. The error amplifier output then drives the PWM comparator, which adjusts the PWM on-cycle to maintain the output voltage. In addition to the voltage monitoring, the UCC2810N also provides current limiting and over-voltage protection features. These features help to protect the device from being damaged due to over-current or over-voltage events.

The UCC2810N is well suited for a wide range of AC/DC converter and offline switcher applications. The device provides superior performance and excellent efficiency, making it an ideal choice for cost-sensitive designs. The device offers a low parts count, high efficiency, low output ripple and excellent line regulation, which allows designers to create reliable and cost-effective power solutions.

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