ON Semiconductor CAT3644HV3-GT2 Overview

The ON Semiconductor CAT3644HV3-GT2 is a high-efficiency, quad-channel, charge pump LED driver that offers a compact and flexible solution for driving multiple LEDs in portable devices. This device is specifically designed to enhance the performance and longevity of LED-backlit products such as smartphones, tablets, and other handheld devices that require uniform and bright illumination with minimal power consumption.

Key Features

• Quad Channel Output: The CAT3644HV3-GT2 can drive up to four LEDs independently, allowing for versatile lighting schemes in a variety of applications.
• High Efficiency: With its charge pump technology, the device achieves efficiency levels that help extend battery life in portable applications.
• Adjustable Brightness: The LED current can be adjusted via a 1-wire EZDim™ interface, providing precise control over the brightness levels to suit user preferences or ambient light conditions.
• Low Noise Operation: The device operates at a fixed frequency with soft start and controlled inrush current, reducing noise and potential interference with other circuits.
• Thermal Protection: Built-in thermal shutdown protection ensures the device and the LEDs it drives are safeguarded against overheating, enhancing system reliability.

Applications

• Mobile phones and smartphones
• Personal media players
• Handheld gaming devices
• Portable navigation devices
• Other battery-powered devices requiring LED backlighting

Technical Specifications

The CAT3644HV3-GT2 operates over a wide input voltage range from 3.0V to 5.5V, making it suitable for a variety of battery technologies. It comes in a compact 16-lead TQFN package, which is ideal for space-constrained designs. The device also features low shutdown current, which further conserves power when the LED driver is not in use.

ON Semiconductor's commitment to quality ensures that the CAT3644HV3-GT2 meets the rigorous standards required for portable device applications, providing a reliable and efficient solution for LED driving requirements.