LM3503SQX-25/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

The LM3503SQX-25/NOPB is a high-efficiency and high-voltage buck-mode LED driver for general lighting applications. It contains two independent buck-mode LED drivers that operate from constant voltage sources and feature integrated timers to limit the maximum current. The LM3503SQX-25/NOPB can drive both low-VF and high-VF LEDs with up to 25 volts of output voltage. It has an adjustable maximum LED current, which can be set through the I2C interface.

The LM3503SQX-25/NOPB is designed for applications where maximum efficiency, high precision and high power density is essential. It is suitable for driving a wide range of LEDs, from ultra-low VF white LEDs to high VF RGB LEDs. This device\'s maximum LED current is adjustable from 200mA to 25A and its operating temperature range is -40°C to 125°C.

The LM3503SQX-25/NOPB is ideal for mains-powered LED lighting, such as street lamps and other general lighting applications. It features a maximum efficiency of 98% at full load and a wide operating voltage range of 8V to 80V. This makes it ideal for high-power applications such as LED light engines.

The LM3503SQX-25/NOPB works by using a buck-mode control technique to step down the input voltage and biasing an inductor/diode bridge. It also contains integrated timers to limit the maximum current to the LED, and a low-side precision currentsensing element to measure LED current. The LED current is then amplifiedby up to 500 times and compared to a reference current to control the switching frequency.

In addition, the LM3503SQX-25/NOPB also provides short circuit protection and a brown-out indicator. It has an adjustable output current slew rate that can be set to 0mA/s, 250mA/s, 500mA/s, or 1000mA/s through an external resistor. The LM3503SQX-25/NOPB also features Skip-ModeTM technology to extend LED lifetime, reduce LED droop, and improve LED efficiency.

The LM3503SQX-25/NOPB is a high-efficiency and high-power buck-mode LED driver, ideal for mains-powered LED lighting applications. It offers adjustable maximum LED current, maximum efficiency of 98%, and wide operating voltage range of 8V to 80V, making it an excellent choice for any LED lighting application. It also features integrated timers to limit the maximum current, short circuit protection, a brown-out indicator, and adjustable output current slew rate for greater flexibility.

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