ON Semiconductor CAT3661HV3-GT2: High-Efficiency Quad-Mode LED Driver

The CAT3661HV3-GT2 is a state-of-the-art LED driver designed by ON Semiconductor, known for its high efficiency and versatility in driving LEDs. It is a perfect solution for portable devices where power efficiency and space constraints are critical considerations.

This device offers a quad-mode operation that includes 1x, 1.5x, and 2x charge pump modes, as well as a 1x mode bypass, ensuring optimal efficiency across a wide range of input voltages. The CAT3661HV3-GT2 is capable of driving up to four LEDs with a total output current of 80 mA, which is programmable via an external resistor. This allows for precise control over the brightness levels of the LEDs, making it ideal for applications such as backlighting in mobile phones, tablets, and other handheld devices.

The CAT3661HV3-GT2 operates over a broad input voltage range of 3.0V to 5.5V, making it compatible with most standard power supplies and battery technologies used in portable electronics. The device also features a low shutdown current of less than 1 µA, contributing to the extended battery life of the end application.

Safety and reliability are paramount with the CAT3661HV3-GT2, as it incorporates built-in soft-start capability to limit inrush current during turn-on, and over-temperature protection to safeguard the device and connected LEDs from excessive heat. Additionally, it has open LED protection which prevents the LED current from reaching abnormal levels in the event of an open circuit condition.

The CAT3661HV3-GT2 comes in a compact 16-pad TQFN 3mm x 3mm package, which is highly suitable for space-constrained applications. Its small form factor, combined with its high efficiency and robust feature set, makes the CAT3661HV3-GT2 an excellent choice for designers looking to enhance their products with reliable and efficient LED illumination.