LM3639AYFQT

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LED lighting technology has been booming since the early 2000s and continues to be a key field for the development and implementation of solid state lighting. An LED driver is an integral part of powering LED devices and modules. LED driver technologies have evolved over the past decade and are now a very strategically important piece of the digital electronics industry and LED lighting technology in general.

The LM3639AYFQT is a popular LED Driver produced by Texas Instruments that facilitates efficient and cost-effective direct AC/DC conversion and dimming control of LED lighting devices. It is a PMIC (Power Management IC) designed for high voltage LED lighting applications such as street lamps, indoor and outdoor lighting, spotlights and high bay lighting. It is an intelligent, digital-input flyback controller that provides dimming control and intelligent protections for the system.

The LM3639AYFQT helps to keep energy dissipation to a minimum and improves the efficiency of the system. It also offers a range of features to maintain control, such as over temperature protection, overtemperature protection, short circuit protection and protection against line voltage transients. The driver’s maximum power output is 860W and its input voltage is 200-520V AC. It provides a wide range of output voltages from 2-60V and a power factor greater than 0.90.

The device is built using a high-voltage, low-voltage, dual-output driver with an integrated dimming controller circuit that is capable of providing output voltage control in PFC (Power Factor Correction) mode. The LED driver integrates a flyback topology to reduce size and improve power efficiency. This topology is based on the switching action of a transistor and provides a controllable power output at a reduced losses through switching the transistor.

The on-chip digital input provides PWM (pulse width modulation) dimming control and enables the system to be dimmed without the need for external control, eliminating the need for external components. In addition, the device also offers an active surge protection, which protects the system from over-voltage and over-current. This all comes together to provide a secure and efficient LED driver solution with power LED lighting applications.

The LM3639AYFQT is a robust, efficient and cost-effective solution for controlling and dimming LED lighting devices. It offers a wide range of features for increased safety and reliable performance. It is suitable for a variety of applications and provides an efficient and compatible source of power and protection for LED lighting systems.

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