NSIC2030JBT3G

Current Regulation/Management Overview

The NSIC2030JBT3G is a constant current regulator (CCR) designed for AC off-line LED applications. It delivers a regulated output current of 30 mA with ±15% tolerance and supports an input voltage of 120 V. The device operates within a frequency range of 100 Hz to 100 kHz and features adjustable output voltage. It utilizes Boost or Buck topology and dissipates up to 3 W of power. Operating temperatures span from -55 °C to +175 °C, housed in an SMB-2 surface-mount package.

Current Regulation/Management Feature Summary

• Utilizes self-biased transistor technology for precise current regulation across wide voltage ranges without external components.
• Features negative temperature coefficient characteristics to prevent thermal runaway and protect LEDs under extreme conditions.
• Provides immediate turn-on capability, achieving significant regulation at low anode-cathacode voltages.
• Engineered with robust power packaging to withstand high peak voltages and voltage surges common in AC offline environments.

Current Regulation/Management Applications

• Automotive side mirror markers
• Instrument cluster backlighting
• High-mounted stop lamps (CHMSL)
• Commercial signage

Current Regulation/Management Procurement Notes

Verify the specific suffix JBT3G against official onsemi documentation to confirm pinout and electrical tolerances. Ensure compatibility with SMB-2 surface mount requirements during PCB layout. Cross-reference AEC-Q101 certification status if automotive qualification is required for the final assembly.

Current Regulation/Management Selection Notes

Select this component for designs requiring simple, component-light constant current regulation in AC mains-driven systems. Consider the 30 mA fixed output and 120 V rating when sizing LED strings. Evaluate the SMB-2 package constraints for thermal management given the 3 W dissipation capability and wide operating temperature range.

Current Regulation/Management Part Context

This part belongs to the NSIC2030JB series of linear constant current regulators. It shares architectural similarities with other members like the NSIC2020JBT3G and NSIC2050JBT3G, differing primarily in rated output current. The series targets cost-sensitive lighting solutions where reliability and surge protection are critical.

Current Regulation/Management Replacement Considerations

Compatible alternatives include NSIC2020JBT3G for 20 mA applications and NSIC2050JBT3G for 50 mA requirements. Automotive variants prefixed with NSV offer AEC-Q101 certification and PPAP capabilities for stricter industry standards.

Current Regulation/Management FAQ

Does the NSIC2030JBT3G require external components for operation?

No, the device is designed to operate as a standalone constant current regulator without the need for external components.

How does the device handle thermal stress?

It exhibits a negative temperature coefficient, which reduces current as temperature rises, thereby protecting the LED from thermal runaway.