UCC3973PW Datasheet/PDFUCC3973PW application field and working principle
Advanced Power System AG (APS) has developed the UCC3973PW as a cutting-edge ballast controller. It features a variety of features all with the purpose of providing a smoother, more consistent lighting experience from an LED source.
UCC3973PW is a plug-and-play, AC/DC LED ballast controller for driving single stage LED luminaire replacement ballast systems. It uses advanced feedback mechanisms to offer consistent power to LED circuits in the retrofit LED lamps, achieving high luminous flux stability. This could reach efficiencies of 97% and power factors up to 0.99 with near sinusoidal current waveforms.
Application Field
The UCC3973PW is a great choice for direct AC/DC LED Lighting applications, since its AC/DC efficiency is increased up to 97% while retaining a high power factor. It is also suitable for driving different types of LED modules including small bulb or traditional tube lamps, spot light, or linear bars. The wide input voltage range makes it suitable for a variety of applications, including indoor or outdoor lighting, industrial lighting and residential lighting.
Working Principle
The UCC3973PW actively controls the input rectified mains voltage, pulse width modulation (PWM) dimming for controlling the LED lamp output intensity. It divides the DC line voltage into two parts. The first part is connected to the input voltage, and the second part is controlled by a feedback circuit which controls the switching of the LED current.
The UCC3973PW utilizes advanced digital and analog circuitry to optimize LED current and LED output light. It can provide constant current to ensure the stability of LED current and power factor, while keeping the output current steady. With these technical features, the UCC3973PW offers superior efficiency, power factor and dimming control for commercial and residential applications.
In addition, the UCC3973PW features built-in thermal and short-circuit protection, allowing it to operate safely. Lastly, it has 8-bit PWM current dimming feature to provide smooth, flicker-free dimming control with a wide range.
Conclusion
In conclusion, the UCC3973PW is a great choice for applications which require efficient, reliable, and pulse width modulation dimming control for LED lighting. It integrates advanced feedback mechanisms, digital and analog circuitry and an 8-bit PWM dimming feature in order to provide a smooth, flicker-free and efficient lighting experience. With this feature set, the UCC3973PW is suitable for a variety of lighting applications, including indoor and outdoor lighting, industrial lighting, and residential lighting.