LM2751SD-A/NOPB

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Light Emitting Diodes (LEDs) are one of the most common components in a wide range of electronics and applications. The LM2751SD-A/NOPB is a member of the LM2751SD family of Power Management Integrated Circuits (PMICs) specifically designed to provide efficient and reliable LED driving solutions. This article will discuss the application fields and working principles of the LM2751-A/NOPB PMIC – LED Driver.

1. LM2751SD-A/NOPB PMIC-LED Driver Application Field

The LM2751SD-A/NOPB PMIC – LED Driver is an integrated circuitry that can provide an efficient and reliable lighting solution for automotive, industrial, or consumer applications. Automotive applications such as dashboard lighting, fog lights, and interior lighting can benefit from the LM2751SD-A/NOPB’s power efficiency and high temperature performances at a wide range of temperatures. Furthermore, the LM2751SD-A/NOPB can power single or multiple LEDs in both low and high voltage applications, enabling its wide usage in industrial and consumer applications as well, such as lighting products, street lamps, and flashlights.

2. LM2751SD-A/NOPB PMIC – LED Driver Working Principle

The LM2751SD-A/NOPB PMIC – LED Driver utilizes a Switch-Mode Power Supply (SMPS) to produce a regulated voltage to power an LED. This SMPS can generate an output voltage up to 36V, with an average efficiency of 82%. The LM2751SD-A/NOPB can also operate over a wide temperature range of -40°C to +125°C.

The LM2751SD-A/NOPB PMIC – LED Driver circuit is built on a two-stage power conversion: Step-down (Buck) and Boost-up (Boost). The Buck stage utilizes an internal linear regulator to produce a regulated output voltage up to 24V, which is then stepped up by the Boost stage to a maximum of 36V.

The LED driver is also equipped with a low-battery shut down(LBSD) protection to prevent over-discharge of the battery. When the input voltage drops below the LBSD threshold, the LBSD protection circuit shuts down the Buck stage to prevent battery damage.

3. Conclusion

The LM2751SD-A/NOPB PMIC – LED Driver is a reliable, efficient lighting solution for automotive, industrial, and consumer applications. It utilizes a two-stage SMPS to produce a regulated output voltage and is designed to operate over a wide temperature range with excellent efficiency. Lastly, the integrated low-battery shut down(LBSD) protection prevents over-discharge of the battery and provides further protection for the circuit.

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