DS3882E+

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DS3882E+ Application Field and Working Principle

The DS3882E+ is a monolithic power control module from Texas Instruments Inc, characterized by their high efficiency and excellent control capabilities. It is suitable for medium to large LED lighting systems, LED lamp ballasts, switch mode power supplies and other power-driven applications. The DS3882E+ permits switching up to 100W of power and supports light dimming down to 0.1% with a wide range of dimming techniques. It is easy to install and use with different types of dimming applications.

Features of the DS3882E+

The DS3882E+ key features are a high efficiency 4-switch flyback topology, an adjustable primary side output voltage, an integrated power factor correction circuit, programmable open-loop and closed-loop control, an adjustable operating frequency and an additional dimming interface. Additionally, it features dual-rail sensing for high power accuracy, isolated auxiliary-side for driving additional loads and an output inhibit feature.

Application Areas

The DS3882E+ is suitable for a variety of applications related to LED lighting systems, LED lamp ballasts, switch mode power supplies, solar power systems and other power-driven applications. It can be used in a wide range of dimming applications and supports both Open Loop and Closed Loop control. The programmable operating frequency makes it suitable for use in a variety of applications.

Working Principle

The DS3882E+ is a monolithic power control module based on a 4-switch flyback topology. It uses a pair of transistors to switch the input supply between VCC and ground and provides a constant current output. The amount of current is controlled by the DS3882E+ primarily by modulating the voltage applied to the primary winding of the transformer. This makes the DS3882E+ ideal for LED lighting applications since it can provide a constant current output with a wide range of dimming techniques while maintaining high efficiency. The DS3882E+ can be used as a stand-alone controller or as part of a larger lighting system.

The DS3882E+ also provides an additional Dimming Interface which allows for the implementation of dimming schemes such as pulse width modulation (PWM), pulse frequency modulation (PFM) and analog current dimming (ACD). This dimming interface also allows for the implementation of more complicated schemes such as digital addressable lighting interface (DALI) and other proprietary protocols. The integrated power factor correction circuit helps to ensure that the output power delivered to the load is accurately regulated. The integrated output inhibit feature can be used to power down the system or reduce the output power when needed.

In summary, the DS3882E+ is a high efficiency 4-switch flyback power control module with excellent control capabilities. It supports a variety of dimming techniques and is suitable for medium to large LED lighting systems, LED lamp ballasts and switch mode power supplies. It features an adjustable primary side output voltage, an integrated power factor correction circuit, programmable open-loop and closed-loop control, and an additional dimming interface. The DS3882E+ is easy to install and use with different types of dimming applications and can provide excellent results.

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