VLSL3212A2

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The VLTSL3212A2 is a cost-effective LED chip solution that is suitable for a variety of applications in the field of LED lighting. It is powered by a single-stage buck regulator and can deliver up to 250 mA of current with a maximum efficiency over 90%.

The VLTSL3212A2 features a wide range of LED combinations, ranging from 2 to 4 LED chips in the area of LED COBs, LED engines and LED modules. The LED chips are soldered onto a PCB with a variety of solder and flux combinations and a 4-layer thermal transfer technology (TLC) providing an efficient heat dissipation system and a good light output.

The VLTSL3212A2 can be used for a wide range of applications, from lighting up outdoor spaces, streets, factories and homes, to providing interior lighting in large commercial and residential buildings. It also finds use in small fixture applications such as downlights, spotlights and wall washers where the high efficiency and low current draw make it an ideal choice.

The VLTSL3212A2 works by converting input voltage into a complete regulated and controllable output current with a 95% efficiency. This is accomplished using a buck regulator which is comprised of an input pin and a dedicated output terminal. The input pin is connected to the AC mains, while the output terminal is connected to the LED chips. The regulator then regulates the current output by controlling the voltage on the input pin and varying the duty cycle of the output.

The buck regulator also features a thermal foldback circuit which helps protect the LED chips from overheating. This circuit is activated when the LED chip temperatures reach a certain threshold. The regulator will then decrease the output current until the LED chips cool to a safe operating temperature.

The VLTSL3212A2 is a highly cost-effective LED solution that gives excellent performance in a variety of LED lighting applications. Its high efficiency and low current draw make it an ideal choice for both outdoor and indoor lighting applications, while the built-in thermal protection ensures reliable operation over time.

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