UCC3973PWG4

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The UCC3973PWG4 unit is a powerful and versatile lighting, ballast controller device. Specifically, it is an LED drivers console aiding in power feedback control and linear LED dimming. This controller controls two phases of LED current, adjustable with two user-programmable constants. It maintains line voltage independent of the load ensuring a constant light output.

Features

• Wide input voltage range – 60V to 410V
• Integrated open and short-circuit protection
• High speed response
• Programmable dimming options
• Programmable power feedback control
• Wide range of operating temperature -40C to 150C

Application Field

The UCC3973PWG4 unit is an ideal lighting device for a variety of applications. It is suited mainly for retrofit applications, emergency lighting and residential lighting. With its high-speed response and constant light output, it is highly suitable for dimmable lighting such as spotlight and cabin lighting. Furthermore, the UCC3973PWG4 has long lifetime capability, making it ideal for roadway and stadium lighting.

Working Principle

The UCC3973PWG4 utilizes return power from the LED phase as well as from the linear phase dimming, resulting in a highly efficient worksheet. The return input together with its integrated open/short circuit protection feature and controllable output stages set UCC3973PWG4 apart from competiting units.

In terms of line voltage recognition, the UCC3973PWG4 constantly monitors the load line voltage and adjusts power to maintain constant light output. By automatically recognizing line voltage changes, it adjusts the LED current accordingly, thus ensuring efficient LED dimming.

The UCC3973PWG4 is designed to be integrated into the LED driver circuitry. Its features, combined with its power feedback control and linear LED dimming capabilities, make it a powerful, yet highly efficient lighting, ballast controller.

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