The MAX16814AUP+ from Maxim Integrated is a high-performance, high-efficiency LED driver that is designed to provide a comprehensive solution for automotive, display backlighting, and general high-power lighting applications. This innovative LED driver integrates a step-up controller along with four linear current sinks, enabling it to drive up to four strings of high-brightness LEDs with unmatched precision and efficiency.
The device operates from a wide input voltage range of 5V to 40V, making it suitable for a variety of power supplies and capable of withstanding automotive load-dump events. Its high 2.2MHz switching frequency allows the use of small, low-profile inductors and capacitors, thus reducing the overall solution size and cost.
Each of the four LED current-sink channels is capable of delivering up to 150mA of continuous current. The MAX16814AUP+ also features accurate channel-to-channel current matching, which is essential for uniform brightness in LED strings and maintaining consistent color temperature. The current sinks can be paralleled for higher-current applications, providing designers with flexibility in their lighting designs.
With its integrated spread-spectrum modulation, the MAX16814AUP+ minimizes EMI emissions, a critical consideration in automotive and sensitive applications. Additionally, the device offers full protection features, including open-LED detection, short-circuit protection, and thermal shutdown, ensuring reliable operation under adverse conditions.
The MAX16814AUP+ is available in a thermally enhanced, 20-pin TSSOP package with an exposed pad. This package option allows for efficient heat dissipation, ensuring the LED driver operates within its temperature range even under high power conditions. The compact form factor combined with its robust feature set makes the MAX16814AUP+ an ideal choice for designers looking for a high-quality, reliable LED driving solution.