LM3645YCGR

LED Driver IC Overview

The LM3645YCGR is a synchronous boost quad LED flash driver manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 5.5 V and supports output voltages from 2.5 V to 5.5 V. The device features four independent outputs capable of delivering up to 2 A per channel. It utilizes a 4 MHz switching frequency and is housed in a DSBGA-25 package. The component functions as a current source with boost topology, designed for high-performance LED illumination applications.

LED Driver IC Feature Summary

• Synchronous boost architecture for efficient power conversion
• Four independent regulated LED output channels
• Integrated I2C interface for configuration control

LED Driver IC Applications

• Smartphone camera flash systems
• Mobile device torch lighting
• Compact portable electronic illumination

LED Driver IC Procurement Notes

Verify the specific suffix 'YCGR' against the official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the target PCB footprint for the DSBGA-25 package. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when designing circuits requiring four synchronized LED drivers from a single low-voltage source. Consider the 2 A output capability and 4 MHz frequency for thermal management and size constraints. Verify that the system input voltage remains within the 2.5 V to 5.5 V operational range for proper regulation.

LED Driver IC Part Context

This part belongs to the LM3645 series of LED drivers from Texas Instruments. It is distinct from related models like the LM3643 or LM3646, which offer different output counts or feature sets. The LM3645 specifically targets applications needing multiple high-current LED channels in a compact form factor.

LED Driver IC Replacement Considerations

Consult the manufacturer's datasheet for officially recommended alternatives. No public substitute part numbers are confirmed in the provided reference material.