ON Semiconductor NSI50010YT1G Constant Current Regulator & LED Driver

The ON Semiconductor NSI50010YT1G is a versatile constant current regulator (CCR) and LED driver designed for a variety of applications requiring a stable current source. This highly efficient device is tailored to maintain a consistent current over a wide voltage range, ensuring optimal performance for LED lighting systems, automotive lighting, signage, and decorative lighting.

Constructed with robust technology, the NSI50010YT1G is capable of handling a steady-state current of 10 mA, with a deviation of just ±10% over a voltage range of 0.5 V to 50 V. This precision ensures a consistent illumination level for LEDs, contributing to a uniform brightness and color consistency, which is crucial for both aesthetic and functional lighting applications.

The compact SOD-123 package of the NSI50010YT1G makes it an ideal choice for space-constrained applications. Its small footprint does not compromise its performance or durability, as it is engineered to withstand the rigors of daily operation, including thermal fluctuations and voltage transients.

Key features of the NSI50010YT1G include:

• Stable current operation from 0.5 V to 50 V
• 10 mA ±10% constant current output
• Thermal shutdown protection for enhanced reliability
• Negative temperature coefficient to protect LEDs from thermal runaway at extreme voltage conditions
• High resistance to moisture, making it suitable for outdoor applications
• Compliance with the AEC−Q101 standards, ensuring automotive-grade reliability

The device's inherent simplicity allows for ease of integration into existing designs, eliminating the need for additional components such as resistors, which can save on both board space and overall system costs. Additionally, its thermal shutdown feature ensures that the device and the LEDs it drives are protected from overheating, thereby extending their operational lifespan.

Whether you are designing automotive lighting solutions, commercial or residential LED fixtures, or portable lighting devices, the ON Semiconductor NSI50010YT1G provides a reliable, efficient, and cost-effective solution for constant current regulation and LED driving needs.