UCC28780RTET Integrated Circuits (ICs)

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The UCC28780RTET is a CMOS integrated power control device designed for a variety of AC/DC applications, including offline switchers, LED drivers and other power control applications. It incorporates a low resistance MOSFET to drive an external MOSFET, allowing for higher current capabilities than a typical linear regulator.

The UCC28780RTET provides a constant voltage regulation over a wide input voltage range with a +/- 2% accuracy and features current-mode control with a yellow-green LED indicator. It also includes undervoltage and overload protection, as well as over-voltage protection. The UCC28780RTET also has a user programmable current limit, allowing the device to be used in a wide range of applications.

The UCC28780RTET features two operating modes: self-oscillating, and constant frequency. In self-oscillating mode, it operates in a 20kHz to 500kHz frequency range, while in constant frequency mode, it operates at a fixed frequency of either 500kHz or 1MHz. This allows for precise control of the output voltage, providing the accuracy and reliability that is required for AC/DC applications.

The UCC28780RTET is designed for a number of AC/DC offline switching applications. It provides a high efficiency, constant voltage, low noise and energy saving design. For example, it can be used for LED lighting applications, industrial motor control, and white goods. It provides a complete power solution for AC/DC applications, including power factor correction, power factor improving and harmonic reduction.

The UCC28780RTET is powered by an external voltage source and can operate at both AC and DC voltages. It has an open-loop PWM control system, featuring two level of protection, allowing it to maintain a precise output voltage, even in the presence of an input voltage fluctuation. The device can easily be configured to operate in either constant frequency or self-oscillating mode.

The UCC28780RTET also features an internal soft-start, which limits the inrush current and extends the life of all connected components. The integrated safety circuits, such as overvoltage and overcurrent protection, as well as built-in thermal protection, ensure the device is safe, and requires minimal external components.

Overall, the UCC28780RTET is a CMOS based power control device, designed for a wide range of AC/DC applications. It features a low resistance MOSFET to drive an external MOSFET, allowing for higher current capabilities than a linear regulator. It has a user programmable current limit and two operating modes, self-oscillating and constant frequency. It also provides protection against overvoltage, overload and overcurrent, as well as provides an integrated soft-start, increasing the life of all connected components. All these features make the UCC28780RTET an ideal solution for AC/DC offline switcher applications, LED Driver, and other industries.

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