LM3448MAX/NOPB

Overview

The LM3448MAX/NOPB is a phase-dimmable offline LED driver from Texas Instruments, housed in a 16-pin SOIC package. It operates with an input voltage range of 8V to 12V and supports triac dimming for lighting applications. The device functions within a temperature range of -40°C to 125°C TJ. Key electrical parameters include a maximum supply current of 2.85 mA. It integrates protection features such as thermal shutdown and offers adjustable switching frequency capabilities for efficient power management in AC-DC offline configurations.

Feature Summary

• Supports phase (triac) dimming functionality for compatible lighting systems
• Integrates thermal shutdown protection for enhanced operational safety
• Features adjustable switching frequency for optimized performance tuning

Applications

• Phase-dimmable LED lighting fixtures
• Offline AC-DC LED driver circuits
• General illumination applications requiring triac compatibility

Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status according to official documentation. Confirm the 16-SOIC package dimensions and pinout against the manufacturer's datasheet before integration. Ensure the design accommodates the specified operating temperature range of -40°C to 125°C TJ for reliable long-term performance in enclosed environments.

Selection Notes

Select this component when phase dimming capability is required for LED applications. It is suitable for designs needing an integrated solution with thermal protection. Consider the 16-SOIC package size for PCB layout constraints. Verify that the input voltage requirements align with the 8V to 12V operational range specified for the device.

Part Context

This part belongs to the LM344x series of offline LED drivers designed by Texas Instruments. It shares functional similarities with other models like the LM3444 and LM3445 but differs in package configuration and specific dimming support. The series focuses on providing efficient, compact solutions for modern LED lighting systems with integrated control features.

Replacement Considerations

The LM3448MAX/NOPB is the non-lead version of the LM3448MAX. Direct substitution requires matching the 16-SOIC package and triac dimming specifications. Other series members like LM3445 offer similar driver functions but may differ in package type or dimming method.