ON Semiconductor CAT3616HV4-GT2 LED Driver

The CAT3616HV4-GT2 from ON Semiconductor is a high-efficiency, charge pump-based LED driver designed to power up to six LEDs with constant current for uniform brightness. This component is an ideal solution for portable battery-powered devices where energy efficiency and minimal space occupation are critical factors.

With an input voltage range of 3.0V to 5.5V, the CAT3616HV4-GT2 is versatile and can be used in a wide array of applications, from mobile phones and personal electronics to portable medical devices and industrial displays. Its high voltage capability ensures compatibility with most common battery technologies, including Li-Ion and NiMH cells.

The device operates in 1x, 1.5x, and 2x modes, automatically switching between these modes based on LED forward voltage requirements, thus optimizing efficiency. This feature helps to prolong battery life by reducing power consumption, especially critical in portable devices where battery life is a key concern.

The CAT3616HV4-GT2 provides a maximum output current of 30mA per channel, which can be set via a single external resistor. This current regulation ensures consistent light output from each LED, which is important for applications where uniform lighting is necessary. The device also includes built-in thermal protection and open LED protection, enhancing the overall reliability and lifespan of the system.

One of the standout features of the CAT3616HV4-GT2 is its low-profile 16-lead TQFN package, which measures just 4mm x 4mm with a height of 0.8mm. This compact form factor makes it an excellent choice for space-constrained applications. Additionally, the device offers a low-noise operation with a 1MHz fixed-frequency regulation to minimize audible noise, which can be particularly beneficial in noise-sensitive applications.

In summary, the CAT3616HV4-GT2 from ON Semiconductor is a feature-rich, high-performance LED driver that offers energy efficiency, compact design, and reliable constant-current output, making it an excellent choice for a variety of portable and space-limited applications requiring high-quality LED illumination.