LT3517IUF#TRPBF

LED Driver IC Overview

The LT3517IUF#TRPBF is a full-featured LED driver IC from Analog Devices, housed in a 16-pin QFN package. It integrates a high-efficiency switch capable of delivering up to 1.5A output current. The device supports multiple topologies including Boost, Buck, and Buck-Boost configurations. It operates with an input voltage range of 3V to 30V and features adjustable output voltage. The switching frequency is programmable between 250kHz and 2.5MHz. It includes PWM dimming control and open LED protection, functioning within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates a 1.5A power switch for driving LEDs in various converter topologies
• Supports wide input voltage ranges suitable for diverse power sources
• Provides precise PWM dimming capability for brightness control
• Includes built-in protection mechanisms such as open LED detection

LED Driver IC Applications

• LED lighting systems requiring flexible topology options
• Backlighting drivers for displays
• General-purpose LED illumination circuits

LED Driver IC Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to ensure correct packaging and temperature grade. Confirm that the TRPBF designation matches the required reel quantity and lead-free status. Cross-reference the datasheet revision to validate electrical characteristics and pinout compatibility before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a single-channel driver with integrated high-current switching is needed. Consider the flexibility of supporting buck, boost, and buck-boost architectures for complex LED string arrangements. Evaluate the programmable frequency range to optimize external component size and efficiency requirements for the specific application design.

LED Driver IC Part Context

This part belongs to the LT3517 series of LED drivers designed by Analog Devices. It is distinct from other variants like the LT3517IFE which uses a TSSOP package. The IUF suffix indicates a specific industrial temperature grade and QFN footprint. It serves as a specialized solution for compact LED power management applications.

LED Driver IC Replacement Considerations

LT3517IUF#PBF (Tube Packaging)

LED Driver IC FAQ

What switching frequencies are supported by the LT3517IUF?

The device supports a programmable switching frequency range from 250 kHz to 2.5 MHz.

Does the LT3517IUF support different converter topologies?

Yes, it can be configured for Boost, Buck, or Buck-Boost topologies depending on the external circuit design.