TPS92074D

Overview

The TPS92074D is a non-isolated Buck Power Factor Correction (PFC) LED driver IC manufactured by Texas Instruments. It features digital reference control and supports analog, PWM, forward phase (Triac), and reverse phase dimming methods. The device operates within an input voltage range of 10.5 V to 18 V, delivering a maximum output current of 2 A. It functions at line frequencies between 45 Hz and 65 Hz with adjustable output voltage. The component is housed in an SOIC-8 package, operates from -40°C to +125°C, and includes short circuit and thermal protection.

Feature Summary

• Integrates non-isolated Buck PFC topology for efficient LED power management
• Supports multiple dimming methods including Analog, PWM, Forward Phase, and Reverse Phase
• Incorporates digital reference control for precise regulation
• Provides built-in short circuit and thermal protection mechanisms

Applications

• Non-isolated LED lighting systems requiring power factor correction
• General illumination applications utilizing Triac or PWM dimming controls
• Buck converter based LED driver designs

Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-8 surface-mount package configuration. Confirm that the required operating temperature range aligns with the specified -40°C to +125°C limits. Ensure the application design accounts for the non-isolated nature of the Buck PFC topology and validates compatibility with the supported dimming protocols such as forward phase or PWM.

Selection Notes

Select this component for designs requiring integrated Buck PFC functionality without isolation requirements. It is suitable for applications needing support for various dimming standards including Triac and PWM. Consider the 2 A output current capability and the 10.5 V to 18 V input voltage window when defining system parameters. The SOIC-8 package offers a compact solution for space-constrained LED driver implementations.

Part Context

The TPS92074D belongs to the TPS9207x series of LED drivers from Texas Instruments. This series focuses on non-isolated solutions combining power factor correction with constant current regulation. The device is designed to simplify AC/DC offline switcher step-down architectures for LED lighting, offering a consolidated approach to managing power quality and light output control in commercial and residential fixtures.

Replacement Considerations

The TPS92075DR/NOPB is a related variant within the same family. Verify functional equivalence regarding output current capabilities and pinout compatibility before substitution. Ensure that any replacement maintains the required non-isolated Buck PFC architecture and supports the necessary dimming interfaces for the target application.