LTC3220EPF#PBF

LED Driver IC Overview

The LTC3220EPF#PBF is a highly integrated multi-display LED driver from Analog Devices. It features an 18-channel universal current source architecture, delivering up to 360mA total output with 20mA per channel. The device incorporates a low-noise charge pump supporting input voltages from 2.9V to 5.5V. Control is managed via a two-wire I²C interface, enabling independent dimming and on/off functions for each channel. It utilizes six-bit linear DACs for brightness adjustment.

LED Driver IC Feature Summary

• Integrates eighteen 20mA universal current sources for multi-display applications
• Employs a low-noise charge pump with automatic mode switching for efficiency optimization
• Provides independent control of on/off states, brightness levels, blinking, and gradation via I²C
• Includes internal precision current reference for stable LED drive performance

LED Driver IC Applications

• Multi-display LED lighting systems
• High-density LED backlighting arrays
• Universal LED current source implementations
• Applications requiring independent channel dimming and control

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the design supports the required I²C interface signals. Check for any regional distribution restrictions or limited supply statuses before finalizing procurement plans.

LED Driver IC Selection Notes

Select this part for designs requiring high channel counts with individual control capabilities. The integrated charge pump simplifies power supply design by reducing external component count. Consider the thermal performance within the UTQFN package for high-current applications. Verify that the I²C address configuration does not conflict with other bus devices in the system.

LED Driver IC Part Context

This component belongs to the LTC3220 family of universal LED drivers. It is designed to replace discrete solutions by integrating power conversion and current regulation. The EPF variant specifies the operating temperature range and package type. It serves as a core driver for complex LED matrices requiring precise current management.

LED Driver IC Replacement Considerations

Direct substitutes include the LTC3220IPF#PBF and LTC3220EPF-1#PBF. These variants share similar functional architectures but may differ in temperature ratings or specific electrical characteristics. Verify pin compatibility and software register mappings before substitution.