NSV45025AZT1G

Current Regulation/Management Overview

The NSV45025AZT1G is a constant current regulator (CCR) from the NSI450 series, manufactured by onsemi. It provides a regulated output current of 25 mA with a tolerance of ±10%. The device operates within a maximum input voltage of 45 V and supports both high-side and low-side configurations. It is housed in an SOT-223 package and is qualified to AEC-Q100 standards for automotive applications.

Current Regulation/Management Feature Summary

• Utilizes self-biased transistor technology for stable current regulation without external components
• Features negative temperature coefficient to prevent LED thermal runaway
• Capable of withstanding voltage surges common in automotive environments

Current Regulation/Management Applications

• Automotive lighting systems
• Industrial signage
• Commercial lighting fixtures

Current Regulation/Management Procurement Notes

Verify the specific suffix 'A' indicates the required 10% current tolerance and AEC-Q100 qualification. Confirm the SOT-223 package matches the PCB footprint. Ensure the application voltage does not exceed the 45 V rating. Check for RoHS compliance requirements if applicable to the final assembly.

Current Regulation/Management Selection Notes

Select this component when a simple, cost-effective linear constant current solution is needed for LED strings. It is suitable for designs requiring high-side or low-side regulation. Consider the power dissipation capabilities of the SOT-223 package relative to the voltage drop across the device.

Current Regulation/Management Part Context

This part belongs to the NSI450 family of linear constant current regulators. These devices are designed as alternatives to traditional constant current diodes, offering improved performance and flexibility. The NSV prefix typically denotes automotive-grade parts with enhanced quality control and production part approval process capabilities.

Current Regulation/Management Replacement Considerations

Check NSI45025AZT1G for non-automotive grade equivalent. Verify NSI45025ZT1G if 15% tolerance is acceptable. Compare NSV45025AT1G for alternative packaging or tolerance options within the same series.