The LT3466EDD-1#PBF is a high-performance, integrated boost converter from Linear Technology, designed to drive LEDs with a constant current for uniform brightness. This device is an excellent choice for portable applications due to its small package and high efficiency. It operates from an input voltage range of 2.5V to 16V, making it suitable for a variety of power sources, from single-cell lithium-ion batteries to multi-cell battery configurations and wall adapters.
One of the key features of the LT3466EDD-1#PBF is its internal 1.3A, 40V switch, which allows it to power a string of up to ten white LEDs in series, ensuring consistent color and brightness. The constant current mode provides superior color fidelity compared to simple resistor biasing typically used in LED applications. Additionally, the device's unique True Color PWM™ dimming capability ensures that color integrity is maintained even at the lowest brightness levels.
The LT3466EDD-1#PBF also offers a wide range of safety and convenience features. It includes open LED protection that disables the boost converter if an open LED is detected, protecting the remaining LEDs from overcurrent. Similarly, its thermal shutdown feature ensures the device operates within safe temperature limits. The frequency of operation is set at 1.2MHz, allowing for the use of small inductors and capacitors, which minimizes the overall footprint and cost of the application.
With its low shutdown current of less than 1µA, the LT3466EDD-1#PBF conserves power when not in use, making it an energy-efficient solution for battery-powered devices. The device is available in a compact 10-lead DFN package with a thermally enhanced footprint, providing improved thermal performance for applications that require high power or operate in high-temperature environments.
Overall, the LT3466EDD-1#PBF is a robust and reliable choice for designers looking to integrate a high-quality LED driver into their applications, offering both performance and ease of use.
