onsemi NCV78902 2-Phase Booster LED Driver

Introduction

The onsemi NCV78902 is a cutting-edge 2-Phase Booster LED Driver specifically engineered for automotive front lighting applications. This high-efficiency LED driver is designed to support high-current LEDs and works seamlessly with buck LED drivers to create a comprehensive multi-channel lighting solution.

Part Description

The NCV78902 is a single-chip LED driver that excels in automotive lighting scenarios, including high beams, low beams, daytime running lights (DRL), turn indicators, and fog lights. It features multi-phase operation, allowing for up to four phases, which optimizes filtering and reduces component costs. The driver includes advanced functionalities such as current sensing via shunt resistors or MOSFET RDS(on), programmable soft-start, and both stand-alone and limp-home modes to enhance system reliability. Operating at frequencies up to 2MHz, it enables compact inductor designs while minimizing electromagnetic interference (EMI). The device also supports SEPIC mode, making it suitable for fluctuating automotive battery conditions.

Applications

• High beams and low beams
• Turn indicators and daytime running lights (DRLs)
• Position or park lights
• Fog lights and static cornering lights
• Adaptive driving beams
• Pixel applications

Industries

• Automotive
• Transportation
• Electronics
• Lighting Solutions

Usage Ideas

1. Adaptive Headlight System: Create a project that utilizes the NCV78902 to develop an adaptive headlight system that adjusts the beam pattern based on vehicle speed and steering angle.
2. Daytime Running Light Controller: Design a controller that manages the operation of daytime running lights, ensuring optimal brightness and energy efficiency using the programmable features of the NCV78902.
3. Fog Light Enhancement: Implement a fog light system that utilizes the NCV78902 to provide enhanced visibility in adverse weather conditions, incorporating features like soft-start to prevent sudden brightness.

Conclusion

The onsemi NCV78902 2-Phase Booster LED Driver is a versatile and efficient solution for automotive lighting applications. With its advanced features and capabilities, it stands out as an ideal choice for engineers and designers looking to enhance vehicle lighting systems. Whether for high beams, fog lights, or adaptive lighting solutions, the NCV78902 provides the reliability and performance needed in modern automotive applications.