UCC28722DBVR

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UCC28722DBVR is an off-line switcher, a type of power management integrated circuit (PMIC) developed by Texas Instruments. It is a highly integrated, single-stage flyback converter controller that is optimized for both low and high line applications. Its internal over-temperature protection makes it an ideal solution for end equipment requiring robust safety performance.

The UCC28722DBVR offers a wide operating range with a minimum input voltage of 85VAC and a maximum output voltage of 360VAC while maintaining a constant switching frequency of 45kHz. Its advanced digital power control technology ensures a fast and accurate response to changing input and output conditions. In addition, the onboard protection circuit provides fast and reliable fault diagnosis and protection from over-temperature, overload and short-circuit events.

Primary applications for the UCC28722DBVR include LED drivers, motor control, and power adapter designs for televisions, printers and other home appliances. The device is also well-suited for AC-DC power supplies and offline power switcher designs.

The UCC28722DBVR operates on the principle of flyback topology, a common technique used in the design of off-line power supplies. In this topology, the input voltage is rectified to create a DC voltage, which is then converted to a sinusoidal alternating current (AC) output. The sinusoidal AC output passes through a transformer, which acts as an impedance matching device and reduces the voltage by a predetermined amount. The reduced voltage exits the transformer and is rectified, filtered, and regulated before it is provided to the load.

The flyback topology is a relatively simple and low-cost method of creating an off-line power supply. It is an efficient power conversion method and is capable of providing high output voltages. Additionally, it requires fewer external components compared to other topologies, making it an attractive option for cost-sensitive designs.

The UCC28722DBVR is a highly integrated, cost-effective solution for off-line power supply designs. Its integrated protection and control features enable fast, safe and reliable operation while the device’s low-profile, lead free packaging makes it an ideal choice for space-constrained applications. The device’s wide operating range and advanced digital power control make it an excellent choice for both low and high line designs.

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