UCC3973N

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UCC3973N is a low voltage lighting and ballast controller that offers multiple protection mechanisms during its operation. It is specifically designed to be used in applications involving low voltage spot, track or other recessed lights. This controller offers comprehensive protection with high input voltage positioning and Thermal Derating.

The UCC3973N provides a number of integrated safety features such as over temperature warning and shutdown, overload voltage protection, line and neutral fault detection, as well as input overvoltage protection. It also enables users to reduce energy costs and simplify their design, by eliminating the use of additional components. The controller is available in a single-channel 8-pin SOIC package, making it suitable for a wide range of applications.

This device contains an internal oscillator and timer circuit, which allows it to control the output voltage and current to meet a certain power specification. The user can adjust the on/off duty cycle of the output by programming the oscillator frequency. Other features like *VF compensation, power-on reset, over-voltage reset, over-temperature reset, under-voltage reset are included in this device, to improve the overall performance.

The UCC3973N can also be combined with an additional power factor correction (PFC) device to reduce input current harmonics and maintain a constant input voltage. By using the PFC device in conjunction with the controller, users can save up to 25% of their total power consumption. The PFC function is available either at the input or output of the controller. A typical application of UCC3973N will provide up to 90% efficiency over a wide range of lighting load levels.

In conclusion, UCC3973N is an efficient low voltage lighting and ballast controller for applications requiring multiple protection mechanisms. It offers comprehensive protection with high input voltage positioning and Thermal Derating. It also contains an internal oscillator and timer circuit, allowing it to control the output voltage and current to meet a certain power specification. The controller can be combined with an additional PFC device to reduce input current harmonics and maintain a constant input voltage, resulting in up to 90% efficiency. Overall, UCC3973N is an ideal solution for applications involving low voltage spot, track or other recessed lights.

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