TPS92551TZX/NOPB

LED Driver IC Overview

The TPS92551TZX/NOPB is a high-efficiency constant current buck LED driver IC from Texas Instruments, designed for automotive and industrial lighting applications. It integrates a power switch and operates within an input voltage range of 4.5 V to 60 V. The device delivers a programmable output current up to 450 mA with a fixed switching frequency of 800 kHz. It supports both analog and PWM dimming methods for precise light control. The component functions reliably across an extended temperature range from -40°C to +125°C and utilizes a compact TO-PMOD-7 surface-mount package.

LED Driver IC Feature Summary

• Integrates power MOSFET and control circuitry in a single module to minimize external component count
• Supports dual dimming modes including analog current adjustment and pulse-width modulation
• Includes built-in thermal shutdown protection to ensure operational safety under overload conditions

LED Driver IC Applications

• Automotive interior and exterior LED lighting systems
• Industrial general illumination fixtures
• High-bay and street lighting drivers

LED Driver IC Procurement Notes

Verify the specific suffix TZX against the official datasheet to confirm the reel packaging configuration and moisture sensitivity level. Ensure the ordering quantity aligns with the manufacturer's standard reel size requirements. Cross-reference the RoHS compliance status with the latest environmental declaration documents provided by Texas Instruments prior to final procurement decisions.

LED Driver IC Selection Notes

Select this component when designing circuits requiring wide input voltage compatibility up to 60 V. The integrated switch design simplifies layout compared to discrete solutions. Consider the 800 kHz switching frequency for balancing efficiency and electromagnetic interference performance. Verify that the required output current falls within the supported range of the device specifications.

LED Driver IC Part Context

This part belongs to the TPS9255x family of LED drivers from Texas Instruments. It shares functional similarities with the TPS92550 but offers higher voltage tolerance. The series is engineered for robust performance in demanding environments. The TO-PMOD-7 package provides a compact footprint suitable for space-constrained lighting modules.

LED Driver IC Replacement Considerations

The TPS92550TZX/NOPB serves as a related variant within the same product family. Verify input voltage requirements before substitution, as the TPS92550 supports a maximum of 36 V compared to the 60 V limit of the TPS92551.