MP4033GS-Z

Overview

The MP4033GS-Z is an offline LED controller from Monolithic Power Systems, designed for isolated flyback topologies. It integrates active PFC and supports TRIAC dimming with adaptive detection. The device operates on primary-side control to eliminate secondary feedback circuits. It features PWM input for analog dimming and a DIM pin for color temperature adjustment. The IC includes comprehensive protection mechanisms such as OVP, SCP, and thermal shutdown. It is housed in an MSOP-10 package and complies with RoHS3 standards.

Feature Summary

• Primary-side regulation eliminates the need for optocouplers and secondary feedback components
• Adaptive TRIAC dimmer type detection ensures compatibility across various leading-edge dimmers
• Integrated active PFC functionality improves power factor without external boost stages
• Programmable current foldback extends LED lifespan under varying thermal conditions

Applications

• Commercial and industrial isolated LED lighting fixtures
• TRIAC-dimmable AC-DC LED drivers requiring high power factor
• Applications necessitating precise primary-side current regulation
• Smart lighting systems utilizing PWM or analog dimming interfaces

Procurement Notes

Verify the specific suffix against official MPS documentation to confirm package type and environmental compliance. Ensure the design accounts for the required operating voltage range and thermal management strategies. Confirm that the selected variant matches the intended dimming protocol and isolation requirements for the target application.

Selection Notes

Select this component for designs prioritizing cost reduction through primary-side control and integrated PFC. It is suitable for applications requiring wide dimming ranges and robust protection features. Consider the MSOP-10 package constraints for thermal dissipation and PCB layout space when finalizing the schematic.

Part Context

This part belongs to the MP4033 family of AC-DC LED controllers. The series is characterized by its ability to drive isolated LED loads with high efficiency. The GS suffix typically denotes a specific package configuration within the broader product line, distinguishing it from other variants like GSE or GK.

Replacement Considerations

MP4033GK-Z and MP4033GSE-Z are documented members of the same MP4033 family. Verify pinout compatibility and package dimensions before substitution. Cross-reference datasheets to ensure identical electrical characteristics and protection thresholds.