LTC3210EUD-3#TRPBF

LED Driver IC Overview

The LTC3210EUD-3#TRPBF is a regulated LED driver IC manufactured by Analog Devices Inc., housed in a 16-QFN (3x3) surface-mount package. It functions as a DC-DC switching regulator utilizing a switched-capacitor charge pump topology to drive LEDs from a single input source. The device supports an input voltage range of 2.9V to 4.5V and provides five independent outputs with current capabilities of 25mA and 400mA. Operating at a fixed frequency of 800kHz, it is designed for applications requiring precise LED regulation within a compact footprint.

LED Driver IC Feature Summary

• Integrates a switched-capacitor charge pump topology to regulate LED currents without requiring external inductors.
• Provides five independent output channels capable of driving multiple LED strings or segments simultaneously.
• Supports dimming control functionality for adjustable brightness management in display systems.

LED Driver IC Applications

• Display backlighting for portable electronic devices
• LED indicator circuits in consumer electronics
• General-purpose LED lighting drivers

LED Driver IC Procurement Notes

Verify the specific suffix '-3' against official Analog Devices documentation to confirm pinout and functional compatibility, as suffixes often denote package variations or specific electrical characteristics. Confirm RoHS compliance status through the manufacturer's current datasheet revision. Ensure the 16-QFN thermal pad requirements are met during PCB layout to maintain reliability.

LED Driver IC Selection Notes

Select this component when designing LED drivers that require inductor-less solutions to save board space. It is suitable for battery-powered applications due to its wide input voltage range and efficient charge pump architecture. Consider the 800kHz switching frequency regarding EMI constraints and external capacitor selection. Verify that the required LED forward voltages fall within the achievable output headroom of the charge pump design.

LED Driver IC Part Context

This part belongs to the LTC3210 family of LED drivers from Analog Devices. The 'EUD' designation indicates a specific commercial temperature grade and QFN package variant. The '#TRPBF' suffix specifies tape-and-reel packaging and lead-free composition. This series is distinct from boost converter-based LED drivers like the LTC3450, focusing on low-profile, inductor-free regulation.

LED Driver IC Replacement Considerations

LTC3210EUD-1#PBF is listed as a similar alternative by distributors. Verify if the '-1' suffix denotes a different internal configuration or pinout compared to the '-3' variant before substitution. No other direct public substitutes are confirmed in the provided data.