LM3502SQX-35

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 LM3502SQX-35 is a member of a family of power management integrated circuits (PMIC) - LED drivers. Operating on a supply voltage of 2.7 V to 38 V, they provide high-efficiency power conversion and robust protection features in an ultra-small, space-saving package.

The LM3502SQX-35 can drive one or two LEDs in series, with a maximum forward current of 350 mA and a maximum forward voltage of 36V. It features a 0.1 V reference voltage and a digitally programmable SoftStart current limit, allowing it to step up to the required current for start-up. For added safety, it features an open LED protection circuit that prevents the LED from drawing excessive current in the event of an open LED.

The LM3502SQX-35 also has a dynamic headroom of 0.5V to 1V, depending on the load and temperature, as well as an adjustable output current limit via an external resistor, providing improved conductivity and thermal protection. Additionally, it has a thermal shut down circuit that automatically shuts down the device when the device becomes too hot.

The working principle of the LM3502SQX-35 is that it monitors the voltage across the LED and adjusts the current accordingly. When the LED is on, the current is regulated by the current regulation loop and the LED’s current remains constant. When the LED is off, the voltage across the LED is zero and the current is turned off. This prevent excessive current being drawn from the device.

In addition, LM3502SQX-35 features programmable current and voltage scaling, DC/DC and AC/DC switching, and support for analog dimming. It is ideal for applications such as LED street lights, car headlights and taillights, and industrial and consumer lighting.

The LM3502SQX-35 is a reliable, cost-effective, and powerful power management solutions for driving high-current LEDs. With its high efficiency and robust protection features, it provides reliable operation for a variety of consumer and industrial lighting applications.

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