NSI45060DDT4G

Current Regulation/Management Overview

The NSI45060DDT4G is an adjustable constant current regulator (CCR) utilizing self-biased transistor technology for LED applications. It features a maximum anode-cathode voltage of 45 V and a reverse voltage rating of 500 mV. The steady-state regulated current is typically 60 mA with a tolerance of ±15%, ranging from 51 mA to 69 mA at 7.5 V. Pulse current reaches up to 76.95 mA under similar conditions. The device operates within a junction temperature range of -55°C to +175°C and dissipates up to 2.7 W. It exhibits a typical overhead voltage of 1.8 V and capacitance of 17 pF.

Current Regulation/Management Feature Summary

• Provides stable current regulation across a wide voltage range using self-biased transistor architecture
• Offers rapid startup capability requiring only minimal anode-cathode voltage to initiate regulation
• Incorporates negative temperature coefficient characteristics to prevent thermal runaway in LED loads
• Ensures component safety through UL94-V0 flammability certification and robust voltage surge protection

Current Regulation/Management Applications

• Automotive exterior lighting systems
• Industrial signage illumination
• Commercial architectural lighting fixtures
• General-purpose LED driver circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix 'DD' against official onsemi documentation to confirm package type and tape/reel specifications, as variations exist within the NSI450xx series. Ensure compliance with RoHS directives and check for AEC-Q101 automotive qualification requirements if deploying in vehicle environments. Confirm lead times and production status directly with authorized distributors or the manufacturer to avoid obsolescence risks.

Current Regulation/Management Selection Notes

Select this component when a simple, cost-effective solution for constant current regulation is required without complex external control circuitry. It is suitable for designs needing high voltage tolerance up to 45 V and operation in extreme temperatures. Consider the DPAK package for surface mount constraints and verify that the 60 mA nominal current aligns with the target LED string requirements.

Current Regulation/Management Part Context

This part belongs to the NSI45060JD family of constant current regulators designed by onsemi. These devices serve as alternatives to traditional恒流二极管 (CCD) solutions, offering adjustable current settings and enhanced durability. The family targets applications demanding reliable LED performance in harsh electrical environments with minimal design complexity.

Current Regulation/Management Replacement Considerations

NSI45060JDT4G serves as a direct functional substitute within the same product line, differing primarily in packaging configuration.