LDD-700L

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LED Drivers are series of electrical components used to control and power Light Emitting Diodes (LEDs). They enable LEDs to be used in a wide range of application fields, from home lighting to automotive to outdoor advertising sign applications. Among a variety of available LED drivers, LDD-700L deserves special attention. This article will look into its working principle and applications.

The LDD-700L, manufactured by Texas Instruments, is a compact, high-performance LED driver with a fixed frequency current control, a wide input voltage range of 4 V to 65 V, an output current range of 5mA to 700 mA and a current accuracy of 1.5%. It is built with a slew rate of 1000 V/uS and is capable of providing 100 mV of programmable over voltage protection up to 88 V. With a non-dimming LED current stability of 10% and PWM dimming with a frequency of 2000 Hz, the LDD-700L provides an ideal solution for the medium-power LED applications.

The LDD-700L works by converting constant DC input voltage into a non-constant current control, which is then used to drive LEDs. It works through a fixed-frequency current control (FFCC) architecture, where its main elements consist of a PWM modulator, a feed-forward compensation/extended slope compensation (FSC/ESC) network, a band-gap voltage reference, an LED-to-power-IC bridge driver, and power rails. It also includes a maximum peak current protection circuitry, which is essential for preventing damage to the LEDs.

Through a combination of the FFCC architecture, FSC/ESC network, and voltage references, the LDD-700L delivers a constant current in output for the LEDs. With its built-in PWM modulator and current sensing, it is also able to achieve a low EMI (electromagnetic interference) and high efficiency operation, which makes it suitable for large and complex LED systems.

The LDD-700L is an ideal choice for many lighting applications, particularly those in industrial, commercial, and outdoor environments. Its wide voltage and current range, along with its low EMI and high efficiency characteristics, make it very suitable for driving high-power LED light sources, such as spotlights, streetlamps, and billboard displays. Its high accuracy and reliability make it perfect for use in harsh environments where lighting systems must operate in extreme temperatures and in direct sunlight. It is also used in energy management applications, as its low voltage and current capabilities allow for efficient monitoring and control of energy consumption.

The LDD-700L is an ideal choice for those looking for an efficient, reliable, and high-power LED driver. Its advanced technology, compact form factor, and excellent power output make it suitable for a wide range of applications, from indoor and outdoor lighting to energy management. Its high accuracy and stability also ensure maximum efficiency and energy savings.

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