TPS923653DRRR

Overview

The TPS923653DRRR is a single-channel LED lighting driver IC from Texas Instruments, designed for boost and buck-boost topologies. It features an integrated switching FET capable of delivering up to 2 A output current. The device operates with a supply voltage range of 4.5 V to 65 V and supports programmable switching frequencies between 100 kHz and 2.2 MHz. It provides an output voltage range of 0 V to 63 V and includes comprehensive protection features such as cycle-by-cycle over-current protection, thermal foldback, and thermal shutdown. The component is housed in a WSON-12 package.

Feature Summary

• Integrates a high-voltage switching FET within a compact WSON-12 package to reduce external component count.
• Supports flexible dimming methods including analog, PWM, and hybrid control schemes.
• Includes built-in fault detection capabilities for both LED open and short circuit conditions.

Applications

• General solid-state lighting fixtures
• Commercial LED downlights
• Industrial LED panel lighting

Procurement Notes

Verify the specific ordering suffix 'DRRR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the WSON-12 footprint matches the target PCB layout design. Ensure the selected application environment remains within the specified -40°C to +125°C operating temperature range to maintain device reliability and performance specifications.

Selection Notes

Select this component when designing circuits requiring a single-channel driver with integrated power switching for space-constrained applications. It is suitable for systems needing wide input voltage compatibility and multiple dimming control options. Consider the maximum 2 A current limit and 65 V supply rating to ensure adequate headroom for the intended LED string configuration and load requirements.

Part Context

This part belongs to the TPS92365x series of non-synchronous boost and buck-boost LED drivers. These devices are engineered for high-efficiency constant current regulation in various lighting architectures. The series emphasizes integration by combining control logic with power stages, simplifying the design process for manufacturers developing compact and reliable LED illumination solutions.

Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Ensure any substitute maintains compatible pinout, electrical ratings, and package dimensions to facilitate direct replacement without redesigning the host circuit board or modifying existing firmware controls.