LP3952RLX/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LED lighting is now commonplace in many industrial, commercial and consumer applications.Maintaining the power supply for these applications accurately and reliably is vital for optimal operation of LEDs. Texas Instruments\' LP3952RLX/NOPB is a high-performance, low power, integrated multiple switch-mode current regulator and boost converter. It is a device that helps applications manage and maintain the power supply of LEDs with ease and efficiency. This device is classified under PMIC (Power Management Integrated Circuits), more specifically, LED Drivers.

LP3952RLX/NOPB Features

The LP3952RLX/NOPB device offers a convenient and efficient management of the power supply for LED lights. It has a low shutdown current, an ultra-low quiescent current and a fast transient response. It also offers an LED open/short indicator that monitors LED status. Furthermore, it assimilates a current source technology which helps reduce the effects of power supply variations on LED current. It also features a temperature compensation circuit and a constant on/off current which aids in low noise and high accuracy.

The device has an integrated 1.2MHz switching frequency, which helps reduce overall system size, minimize emissions and enhance efficiency. Moreover, this is a single controller to power up to six white LEDs, which helps save cost and space. Furthermore, the device offers a wide input voltage range, from 4.5V up to 28V. This makes it especially useful in automotive applications. Additionally, the device is AEC-Q100 qualified, indicating an automotive grade quality and a higher level of reliability.

LP3952RLX/NOPB Application Fields and Working Principle

The LP3952RLX/NOPB device is ideal for applications such as automotive headlights, interior and exterior lighting, LCD backlighting and automotive daytime running lights. It works on a current-mode peak current control method, which operates in a constant frequency switching to provide a steady output current for the LEDs. This helps maintain a consistent and accurate intensity of light output.

The LP3952RLX/NOPB device integrates an amplifier and a feedback resistor in the current path, which helps control the conduction of the switch. This helps monitor the output voltage and current and adjust it accordingly. As the output current increases, the amplifier will reduce the volume and frequency of the feedback signal. The device then reduces the amount of conduction of the switch, which in turn lowers the output current.

This device also offers a high level of accuracy and stability. It has a fixed frequency of 1.2MHz, which ensures the stability of the system\'s operation. Furthermore, the low power consumption and high efficiency allow for extended battery life and uniform lighting performance. The temperature compensation circuit helps keep the LED current regulated, even in changing temperature conditions.

Conclusion

The LP3952RLX/NOPB device from Texas Instruments is a versatile and efficient LED driver, which helps applications manage and maintain the power supply of LEDs with ease and efficiency. It offers high efficiency and low power consumption, along with a wide input voltage range and an LED open/short indicator. It has a current source technology which helps reduce the effects of power supply variations on LED current, and it fits perfectly with automotive applications. These features make it an ideal choice for LED-lighting needs.

The specific data is subject to PDF, and the above content is for reference