TPS923653DYYR

Overview

The TPS923653DYYR is a Texas Instruments LED lighting driver IC featuring a wide input voltage range of 4.5 V to 65 V and supporting both boost and buck-boost topologies. It delivers up to 2 A of continuous output current with an integrated 150-mΩ MOSFET, providing typical 3-A or 6.5-A current limits. The device operates within a temperature range of -40°C to +125°C and utilizes a SOT-23-THN (DYY) package.

Feature Summary

• Supports inductive fast dimming and spread spectrum modulation for reduced electromagnetic interference
• Features common cathode LED connection architecture
• Integrates high-efficiency power MOSFETs for compact design

Applications

• Indoor general lighting systems
• Outdoor street and area lighting fixtures
• LCD backlighting applications

Procurement Notes

Verify the specific suffix DYYR corresponds to the SOT-23-THN package and reel quantity requirements. Confirm that the 65-V input rating aligns with your system's maximum supply voltage. Ensure thermal management strategies account for the 125°C junction temperature limit during operation.

Selection Notes

Select this component when designing drivers requiring high input voltage tolerance up to 65 V. It is suitable for applications needing precise analog or PWM dimming control. Consider the integrated MOSFET ratings against peak load currents to ensure reliable performance under transient conditions.

Part Context

This part belongs to the TPS92365x family of LED drivers from Texas Instruments. It shares functional similarities with other members like the TPS923650 and TPS923651 but offers distinct voltage and current capabilities tailored for higher-power lighting solutions.

Replacement Considerations

Direct substitutes include TPS923653DRRR and TPS923653DYYR variants within the same series. Verify pin compatibility and electrical specifications before swapping.