TPS922052DRRR

Overview

The TPS922052DRRR is a non-synchronous buck LED driver IC from Texas Instruments, designed for high-performance lighting applications. It operates with an input voltage range of 4.5 V to 65 V and delivers up to 2 A of output current. The device supports flexible dimming methods including analog, PWM, hybrid, and spread spectrum techniques. Key electrical parameters include a switching frequency range of 100 kHz to 2.2 MHz and an output voltage capability of 0 V to 63 V. It features an integrated switching FET and is housed in a WSON-12 package, suitable for surface mount installation across temperatures from -40°C to +125°C.

Feature Summary

• Integrates a high-side N-channel power switch to minimize external component count
• Supports multiple dimming control interfaces including analog, PWM, and hybrid modes
• Includes comprehensive protection mechanisms such as thermal foldback and cycle-by-cycle over-current protection

Applications

• General solid-state lighting fixtures
• Automotive interior and exterior illumination systems
• Industrial and commercial LED downlights

Procurement Notes

Verify the specific ordering suffix DRRR to confirm the tape-and-reel packaging configuration and quantity per reel. Ensure compatibility with the target PCB footprint for the WSON-12 package. Confirm that the application design accounts for the specified thermal operating limits and input voltage requirements before finalizing procurement.

Selection Notes

Select this component when a single-channel buck topology is required for driving LEDs with high input voltages up to 65 V. It is appropriate for designs needing integrated power switching and support for complex dimming strategies. Consider the WSON-12 package size constraints and the need for external inductor selection based on the programmable frequency range.

Part Context

This part belongs to the TPS92205x family of LED drivers from Texas Instruments, which are optimized for automotive and industrial lighting. The series offers various current capabilities and packaging options to suit different power levels. The TPS922052 specifically targets applications requiring 2 A output current with robust fault protection and flexible control interfaces.

Replacement Considerations

Consult official substitution guides for pin-compatible or functionally equivalent alternatives within the same product family. Verify that any substitute maintains the required input voltage range, output current capacity, and package dimensions.