Maxim Integrated MAX1582ETC+T High-Efficiency, High-Brightness LED Driver

The MAX1582ETC+T from Maxim Integrated is a high-efficiency, step-up converter specifically designed to drive white LEDs with a constant current for uniform intensity. It is an ideal power solution for high-brightness LED applications, such as backlighting in handheld devices, including smartphones, digital cameras, and portable media players.

This compact device operates from an input voltage range of 2.6V to 5.5V, making it suitable for single-cell lithium-ion (Li+) batteries and other standard power supplies. The MAX1582ETC+T can drive up to 26 white LEDs in series, providing a well-regulated current to ensure consistent brightness and extend LED life.

Featuring a high switching frequency of up to 1.2MHz, this LED driver allows for the use of small, low-profile inductors and capacitors, thereby reducing the overall solution footprint on the PCB. The device also includes an integrated Schottky diode, further minimizing the number of external components required.

The MAX1582ETC+T offers a high efficiency of up to 87%, which not only conserves power but also minimizes the heat generated, a critical factor in portable device design. Additionally, it incorporates a dimming control input that enables a wide range of brightness levels, enhancing the user experience by allowing for ambient light adjustments.

Safety features of this LED driver include overvoltage protection, which prevents damage to the device if the output voltage exceeds the safe threshold, and thermal shutdown to protect the device in case of excessive heat. The MAX1582ETC+T is available in a compact, thermally efficient, 12-pin thin QFN package, and its temperature range of -40°C to +85°C ensures reliable operation across diverse environmental conditions.

With its combination of high efficiency, small form factor, and robust safety features, the Maxim Integrated MAX1582ETC+T is an excellent choice for designers looking to optimize their high-brightness LED applications for both performance and space.