LM2751SDX-A/NOPB

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The LM2751SDX-A/NOPB is a high-performance constant current LED driver PolarMOS Integrated Circuit (PMIC) designed by Texas Instruments. It is designed to provide up to 10 watts of LED drive current with extremely low current ripple, low thermal resistance, low lock-up voltage, and low quiescent current. The LM2751SDX-A/NOPB operates with up to 96V of LED drive voltage and can be used with a wide range of LED lighting products, from general-purpose to high-performance applications. The LM2751SDX-A/NOPB is highly efficient, has a low lock-up voltage, and provides immaculate ripple characteristics for high-contrast lighting. It also has an adjustable dimming range.

The LM2751SDX-A/NOPB is an ideal LED driver for applications where high efficiency, low ripple characteristics, and near-zero quiescent current are of paramount importance. It utilizes a fast, voltage mode constant current control scheme to provide LED current regulation, making it ideal for driving high-powered LEDs. Additionally, it has built-in dimming capability, which allows for a wide range of brightness levels. With its high peak power capability and low ripple current at the output, the LM2751SDX-A/NOPB can be used to drive the most complex LED lighting applications.

The LM2751SDX-A/NOPB works on the basis of a simple two-step process. In the first step, it converts a low voltage, constant current source into a high-voltage, constant current source. This is achieved by using voltage-mode control and choosing the drive voltage appropriately for the LEDs connected to the output. In the second step, the large current requirement of the LEDs is regulated by adjusting the feedback voltage and limiting the current to the LEDs. This achieved by changing the voltage on the inverting input of the operational amplifier inside the chip. The adjustable dimming feature provided by the chip ensures that the brightness level of the LEDs can be controlled by changing the voltage on the inverting input, which sets the dimming range for the LEDs.

The LM2751SDX-A/NOPB is a robust and highly efficient performance constant current LED driver. It has an adjustable dimming range and a low lock-up voltage, which provides immaculate ripple characteristics and excellent output current regulation. It is suitable for a wide range of LED lighting applications, from general-purpose to high-performance, and provides up to 10 watts of LED drive current with extremely low current ripple. Additionally, its low thermal resistance and near-zero quiescent current make it an ideal LED driver choice.

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