NSV45025AT1G

Current Regulation/Management Overview

The NSV45025AT1G is a linear constant current regulator (CCR) from onsemi, designed for LED lighting applications. It operates with a fixed output current of 25 mA and supports an input voltage range up to 45 V. The device utilizes Self-Biased Transistor (SBT) technology to regulate current over a wide voltage range. It features PWM dimming capability and is housed in an SOD-123 surface-mount package. The component is qualified under AEC-Q100 standards and operates within a temperature range of -55°C to +150°C.

Current Regulation/Management Feature Summary

• Implements Self-Biased Transistor (SBT) technology for robust current regulation across a wide voltage range.
• Incorporates negative temperature coefficient design to protect LEDs from thermal runaway under extreme conditions.
• Supports Pulse Width Modulation (PWM) dimming operations for precise light control.

Current Regulation/Management Applications

• LED string current regulation
• General LED lighting driver circuits
• Automotive LED illumination systems

Current Regulation/Management Procurement Notes

Verify the specific suffix 'A' against official datasheets to confirm functional differences compared to standard variants. Ensure compatibility with AEC-Q100 automotive qualification requirements if used in vehicle applications. Confirm that the SOD-123 package dimensions align with PCB layout specifications before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when a simple, cost-effective linear solution is required for regulating LED current without complex switching circuitry. It is suitable for designs needing inherent thermal protection and PWM dimming support. Consider the 25 mA fixed current rating and 45 V maximum input voltage limits during system architecture planning.

Current Regulation/Management Part Context

This part belongs to the NSI450 series of LED drivers from onsemi. These devices are categorized as linear constant current regulators intended to replace traditional Constant Current Diodes (CCDs). The series offers a simplified approach to LED current management with enhanced reliability features compared to basic diode solutions.

Current Regulation/Management FAQ

How does the NSV45025AT1G protect against thermal runaway?

It utilizes a negative temperature coefficient design that inherently reduces current flow as temperature increases, thereby protecting the LEDs from damage due to excessive heat or voltage spikes.

What technology underpins the current regulation in this device?

The device is based on Self-Biased Transistor (SBT) technology, which allows it to maintain stable current regulation over a wide operating voltage range.