LTC3219EUD#PBF

LED Driver IC Overview

The LTC3219EUD#PBF is a highly integrated multidisplay LED driver manufactured by Analog Devices Inc. It features nine universal LED current sources powered by a high-efficiency, low-noise charge pump. The device operates within an input voltage range of 2.9V to 5.5V and supports I2C dimming control. It utilizes a switched capacitor topology with an operating frequency of 850kHz. The component is housed in a 20-QFN (3x3) package and is designed for applications requiring precise LED current regulation.

LED Driver IC Feature Summary

• Integrates nine universal LED current sources driven by a high-efficiency charge pump
• Supports I2C interface for digital dimming and configuration control
• Operates efficiently across a wide input voltage range compatible with single-cell lithium-ion batteries

LED Driver IC Applications

• Multidisplay LED lighting systems
• Video phone backlighting
• Universal LED current source applications

LED Driver IC Procurement Notes

Verify the specific suffix EUD against the required package type, as it denotes the 20-QFN form factor. Confirm that the #PBF designation indicates lead-free compliance and RoHS adherence. Ensure the design accommodates the 850kHz switching frequency and I2C communication requirements. Check for availability as distribution status may vary.

LED Driver IC Selection Notes

Select this component when nine independent LED channels are required from a single IC. It is suitable for designs needing I2C programmability for brightness adjustment. The wide input voltage range makes it appropriate for battery-powered devices. Consider the thermal performance of the QFN package for the intended power dissipation levels.

LED Driver IC Part Context

This part belongs to the LTC3219 family of multidisplay LED drivers. It shares functional similarities with other Linear Technology LED drivers but is distinguished by its nine-channel output capability and specific I2C control interface. The device integrates both the power stage and control logic for simplified system design.

LED Driver IC Replacement Considerations

The LTC3210EPD-1#PBF is listed as a similar alternative, though it offers only five outputs instead of nine. Verify channel count requirements before substitution. Other generic LED drivers may lack the integrated charge pump or I2C functionality.