NCL30000DR2G

Overview

The NCL30000DR2G is a single-stage power factor correction LED driver controller from onsemi, designed for low to medium power AC-DC applications. It operates in critical conduction mode (CrM) using a constant on-time architecture, supporting flyback and buck topologies. The device achieves high power factors exceeding 0.95 and efficiencies above 80% at 5W-15W output. Key electrical parameters include a supply voltage range of 8.8V to 20V, a typical startup current of 24µA, and a working current of 2mA. It features a 500mV current sense threshold and robust gate drive capabilities with 500mA source and 800mA sink currents.

Feature Summary

• Implements constant on-time CrM operation to enable simple control schemes and high efficiency in isolated flyback LED applications.
• Integrates comprehensive protection mechanisms including overvoltage, undervoltage, and overcurrent detection to ensure system safety.
• Features a powerful图腾柱 gate driver capable of handling high gate charge MOSFETs for reliable switching performance.
• Supports compatibility with leading-edge TRIAC and trailing-edge transistor dimmers without requiring input voltage sensing.

Applications

• Isolated flyback LED driver designs for general lighting
• LED downlights and PAR lamps
• Outdoor LED lighting fixtures

Procurement Notes

Verify the complete part number against official documentation to confirm suffix specifications. Ensure design compliance with RoHS standards as the device is lead-free and halogen-free. Confirm that the selected topology aligns with the controller's CrM operational requirements for optimal performance.

Selection Notes

Select this component for AC-DC LED lighting projects requiring single-stage PFC and dimming compatibility. It is suitable for power outputs ranging from 1W to 40W. Consider the wide operating temperature range of -40°C to 125°C for diverse environmental conditions.

Part Context

This part belongs to the NCL30000 series of LED lighting controllers. It utilizes an 8-pin SOIC surface-mount package. The series is engineered to meet EnergyStar standards and provides reference designs such as the NCL30000LED1GEVB to accelerate development cycles for mid-power LED applications.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family or updated revisions. Verify pinout and electrical parameter compatibility before replacing existing inventory.

FAQ

What control mode does the NCL30000DR2G utilize?

It uses a constant on-time critical conduction mode (CrM) operation, which allows the transformer primary current to follow the applied voltage shape for high power factor.

Does the device support dimming functionality?

Yes, it is compatible with both leading-edge TRIAC and trailing-edge transistor dimmers.