TPS922052DMTR

Overview

The TPS922052DMTR is a step-down (buck) LED driver IC from Texas Instruments, designed for high-efficiency lighting applications. It features a wide input voltage range of 4.5 V to 65 V and supports common anode LED configurations. The device integrates power MOSFETs capable of delivering up to 2 A continuous output current with low on-resistance. It operates at switching frequencies between 100 kHz and 2.2 MHz, allowing for compact passive component selection. The IC supports both analog and PWM dimming methods for precise brightness control.

Feature Summary

• Supports wide input voltage range from 4.5 V to 65 V
• Integrates low-resistance power MOSFETs for efficient buck conversion
• Enables flexible brightness control via analog and PWM dimming interfaces
• Configurable switching frequency up to 2.2 MHz for optimized design size

Applications

• General solid-state lighting systems
• LED backlighting for displays
• Automotive interior and exterior lighting
• Portable battery-powered LED fixtures

Procurement Notes

Verify the complete part number including suffixes such as 'DMTR' to ensure correct tape-and-reel packaging and temperature grade. Confirm that the specific variant matches the required output current capability, as the TPS92205x family includes parts with different current ratings. Ensure compatibility with the target PCB footprint and thermal management requirements during procurement planning.

Selection Notes

Select this component when a buck topology is suitable for the LED string voltage relative to the supply rail. Consider the integrated MOSFET resistance and maximum current rating against the specific LED load requirements. Evaluate the need for external components based on the desired switching frequency and dimming method. Verify that the operating temperature range meets the environmental conditions of the final application.

Part Context

This device belongs to the TPS92205x family of LED drivers from Texas Instruments. These parts are engineered for high-performance lighting solutions requiring efficient power conversion and precise current regulation. The family offers various current ratings and package options to accommodate diverse design constraints in commercial and industrial lighting markets.

Replacement Considerations

Direct replacements within the same family include TPS922053DMTR for higher current applications. Cross-family alternatives may require verification of pin compatibility and electrical specifications. Ensure any substitute maintains the required input voltage range and dimming functionality.