NSV50150ADT4G

Current Regulation/Management Overview

The NSV50150ADT4G is an adjustable constant current regulator and LED driver manufactured by onsemi. It utilizes self-biased transistor technology to provide stable current regulation across a wide voltage range. The device operates with a maximum input voltage of 50 V and supports an output current range of 150 mA to 350 mA, with a typical steady-state current of 150 mA at 7.5 V. It features a negative temperature coefficient for thermal protection and offers PWM dimming capability. The component is housed in a DPAK-3 surface-mount package and is rated for operation between -55 °C and +175 °C.

Current Regulation/Management Feature Summary

• Adjustable constant current regulation via the R_adj pin or floating configuration
• Negative temperature coefficient prevents thermal runaway in LED loads
• Supports PWM dimming for brightness control applications
• Complies with AEC-Q101 automotive qualification standards

Current Regulation/Management Applications

• Automotive exterior lighting systems
• General-purpose LED illumination drivers
• High-reliability industrial lighting circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix 'NSV' indicates automotive-grade qualification when sourcing. Confirm the DPAK-3 package variant matches the PCB footprint requirements. Ensure the design accounts for the thermal resistance characteristics specified in the datasheet for the intended copper trace area. Cross-reference the RoHS and halogen-free status if environmental compliance is mandatory for the target market.

Current Regulation/Management Selection Notes

Select this component when a simple, cost-effective solution for LED current regulation is required without complex control circuitry. It is suitable for designs needing inherent thermal protection against heat-induced current increases. Consider the 50 V maximum voltage limit and the 150–350 mA adjustable range to ensure compatibility with the LED string configuration. The DPAK-3 package is appropriate for surface-mount assembly processes.

Current Regulation/Management Part Context

This part belongs to the NSI50150 series of adjustable constant current regulators from onsemi. The series is designed to replace traditional resistor-based current limiting solutions, offering superior stability and efficiency. The NSV prefix typically denotes automotive-grade variants within the broader product family, ensuring higher reliability standards compared to standard commercial grades.

Current Regulation/Management Replacement Considerations

Direct substitutes include other parts from the NSI50150 series, such as the NSI50150ADT4G, provided the automotive grade is not strictly required. Verify that any replacement maintains the same DPAK-3 package and electrical characteristics, specifically the 150 mA nominal current and 50 V rating.