The right topology and features for every LED lighting design
Typically, LED drivers are deployed to provide constant current to LED light engines for applications like commercial indoor lighting, street lighting and high bay lighting. The topology used in a design depends on the power rating and feature set. Low-power and cost-sensitive LED lighting applications usually turn to single stage flyback topology. For higher power ratings and larger feature sets, dual stage topologies with a dedicated stage for power factor correction (PFC) and a dedicated stage for flyback or LLC are common.
Using primary constant voltage with secondary buck stage is a further option. This topology supports intelligent lighting features as well as low dimming levels and other features. Ultimately, the topology most suitable for your design depends on the specific features to implement and your platform concept.
Overcoming today’s challenges on the LED driver market
The current LED driver market is characterized by increasing pressure to cut costs and to bring a product to market quickly. The cost of your design is directly influenced by the bill of materials, with product variants incurring additional costs due to keeping stock and R&D. Of course, your task is also to find the right topology for customer requirements.
LED drivers from Infineon
To overcome today’s challenges and accommodate the wide range of topologies on the LED driver market, at Infineon we offer LED driver ICs that support several different topologies and features. Our products for LED drivers range from analog LED driver ICs tailored to specific applications, to configurable digital ICs that help accelerate the time to market and reduce the cost of stock keeping units (SKUs) for LED driver variants.
Common topologies of LED drivers
Single stage: flyback – Constant Current (CC)
Non-isolated single stage buck – Constant Current (CC)
Dual Stage: PFC + FB (CC)
Dual Stage: Boost PFC + Current regulated buck
Dual stage: PFC + LLC – Constant Current (CC)
Dual stage: PFC-IC for PFC + LLC or PFC + flyback
Dual stage: PFC/FB Constant Voltage (CV) + secondary buck
Secondary buck options (CC)
Triple stage: PFC + LLC Constant Voltage (CV) + secondary buck
Secondary buck options (CC)
DAVE™ - free development platform for code generation
With DAVE™, our free and complete development platform based on CDT, software developers can generate a tailored software library that maximizes the potential of XMC microcontrollers. Rely on DAVE™ to help reduce complexity – and time to market.
Do more with DAVE™ Apps. Included with DAVE™ software is DAVE™ Apps, an extensive, powerful library of more than 170 applications in four categories: Service, Standard Middleware, Specific Middleware and Peripheral.