TPS923654DRRR

Overview

The TPS923654DRRR is a non-synchronous boost or buck-boost LED driver IC from Texas Instruments, designed for high-performance lighting applications. It features an integrated switching FET capable of delivering up to 4 A output current with a maximum supply voltage of 65 V and minimum input of 4.5 V. The device supports programmable switching frequencies ranging from 100 kHz to 2.2 MHz and offers flexible dimming options including analog, PWM, hybrid, and flexible modes. Packaged in a WSON-12 format, it operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-current switching FET for efficient power delivery in boost and buck-boost topologies
• Supports multiple dimming methods including analog, PWM, hybrid, and flexible control schemes
• Includes comprehensive protection mechanisms such as cycle-by-cycle over-current protection and thermal shutdown
• Features open-drain fault output for system monitoring and diagnostic capabilities

Applications

• General illumination systems requiring high brightness and efficiency
• Automotive exterior lighting modules
• Industrial and commercial lighting fixtures
• Portable battery-powered lighting devices

Procurement Notes

Verify the specific ordering suffix DRRR to confirm the reel packaging configuration and tape width. Ensure compatibility with the WSON-12 footprint during PCB layout design. Cross-reference the latest datasheet revision for any updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.

Selection Notes

Select this component when high output current up to 4 A is required in a compact surface-mount package. Consider the wide input voltage range and programmable frequency for optimizing electromagnetic interference performance. Evaluate the thermal management requirements given the high current density and ensure the application environment stays within the specified operating temperature limits.

Part Context

This part belongs to the TPS92365x series of LED drivers, which are optimized for high-power LED applications. The series provides scalable solutions with varying current capabilities and package options to suit different form factors. The TPS923654 variant specifically targets applications needing higher current output compared to lower-end models in the same family.

Replacement Considerations

Direct substitutes may include other parts within the TPS92365x family with similar current ratings but different packages, such as TPS923654MDMTR. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.