TPS92311D/NOPB

Overview

The TPS92311D/NOPB is an off-line primary side sensing LED driver IC from Texas Instruments, designed for AC-DC flyback dimming applications. It features a 16-SOIC package and supports a maximum output current of 2 A with a maximum output voltage of 60 V. The device operates within an input voltage range of 13 V to 35 V and includes adjustable switching frequency between 60 kHz and 150 kHz. It offers analog dimming capability, thermal shutdown protection, and soft switching functionality.

Feature Summary

• Integrates primary side sensing for simplified transformer design
• Supports natural power factor correction (PFC)
• Provides analog dimming control for brightness adjustment
• Includes built-in thermal shutdown for enhanced reliability

Applications

• High-brightness LED lighting in automotive systems
• Industrial LED illumination solutions
• Consumer LED lighting products

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure compatibility with required packaging and temperature ratings. Confirm that the component meets all necessary regulatory standards for the intended application environment before finalizing procurement decisions.

Selection Notes

Select this component for AC-DC offline flyback applications requiring primary side regulation. Ensure the design accommodates the specified input voltage range and switching frequency constraints. Consider the thermal performance requirements given the integrated shutdown feature and operating temperature limits.

Part Context

This part belongs to Texas Instruments' family of off-line primary side sensing controllers. It is engineered specifically for driving high-brightness LEDs, offering a compact solution for applications where secondary side feedback is impractical or cost-prohibitive.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical specifications when considering cross-references.

FAQ

What type of dimming method does the TPS92311 support?

The device supports analog dimming methods for controlling LED brightness.

Is power factor correction included in this controller?

Yes, the TPS92311 integrates natural power factor correction (PFC) functionality.