Solutions for LED drivers

Create innovative and small form factor LED drivers with our tailored LED driver ICs, NFC ICs, high-voltage MOSFETs, and 1-10 V dimming ICs

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Overview

LED drivers provide constant current to LEDs for different power classes, dimming ranges, and input voltage levels. High light and power quality is required due to customer and regulatory requirements. Based on long term engagement in the lighting industry, Infineon has developed tailored solutions for LED drivers in different topologies and regions. With us, you'll find the right topology and features for every LED lighting design.

Benefits

  • ICs with high light quality
  • ICs with high power quality
  • ICs enabling small form factor
  • CoolMOS™ with low switching losses
  • GaN devices to increase power density
  • Integrated 1 - 10 V dimming ICs
  • 80 V DC-DC buck converters

Block diagram

About

About Infineon solutions for LED drivers

LED applications are often powered by an AC-DC supply. Since the LED drivers’ purpose is to control the current flow through the LED, this results in the need for a LED driver to provide constant current.

Regardless of the many functions such as communication required by LED lighting, the development of the power supply block is, where several functions are concentrated, a key point. The current LED solutions, including LED lighting drivers, offer excellent dimming options for diverse topologies using DALI, push-dim, NFC configuration, or 1-10 V.

LED lighting power supply units and LED driver designs are required to offer maximum efficiency, power factor (PFC), total harmonic distortion (THD), and are subject to specific requirements regarding safety (EN 61347-1/-2-13), EMC (EN 55015), harmonic current emissions, and further specific requirements of standards such as UL and IEC.

Infineon portfolio for LED drivers

Infineon offers a truly expansive portfolio of semiconductor solutions for LED drivers, with which you can create diverse and innovative LED lighting designs. 

Starting with the AC-DC stage, we offer ICs for many topologies such as PFC, flyback, LLC, and LCC, for constant current output. We also offer our CoolMOS™ high-voltage power MOSFETs for the AC-DC stage. Moving over to the DC-DC stage, our portfolio includes DC-DC buck controllers. We also offer NFC ICs for configuration and 1 - 10 V dimming interface ICs.

Check out the block diagram below for a full breakdown of our solutions.

Choosing the right LED driver ICs

Infineon delivers innovative, high-performance LED driver ICs solutions with best-in-class technologies that can be used in a broad range of LED lighting applications. The type of LED driver used in a lighting application has a significant impact on the overall performance. Therefore, you benefit in many ways from choosing the right LED driver IC product that best fits your needs.

It is important to know the difference between a constant current LED driver compared to an LED driver with constant voltage when choosing which LED driver to use. The main difference between the two is that a constant current LED driver is designed to operate within a certain range of output voltages and has a fixed output current, while a constant voltage LED driver is designed for a single DC output voltage. Therefore, the desired features of a dimmable constant current LED driver are high efficiency, high power factor (PF), low total harmonic distortion (THD), and a stable output current. They are a suitable option for high quality LED lighting such as streetlights, high-bay lighting, or office lighting.

Explore LED driver ICs
Choosing semiconductors for LED drivers

The type of LED driver used in an LED lighting application has a significant impact on key system performance indicators such as efficiency, dimming capability, power quality, light quality, i.e., ripple/flicker, configurability of parameters, i.e., output current, and the ability to support add-on features such as power monitoring. In addition, product lifetime system efficiency is influenced by the choice of topology and components used.

A resonant topology, for instance, can increase LED driver efficiency by 5%. The right MOSFETs, a high-voltage start-up cell, as well as synchronous rectification, can also have a positive impact. Dimming down to 1% light output has become mainstream for indoor lighting. Design strategies usually use analog dimming to a certain level and then switch to PWM dimming for lower levels. Many customers demand compliance with PFC and THD regulatory requirements at 50% dimming. LED driver power supply based on a single-stage flyback topology usually has an output current ripple of ±30%. Growing dissatisfaction with this ripple is fueling widespread adoption of two-stage topologies, i.e., single-stage PFC flyback combined with a secondary buck regulator.

Wide bandgap solutions optimized for LED lighting

By leveraging GaN solutions, Infineon's LED drivers offer more efficient power conversion, faster switching, and improved power density, ultimately enhancing integration. Our GaN technology enables higher efficiency, improved thermal performance, and advanced power management, making it an ideal choice for modern lighting systems.

Infineon's portfolio of GaN products and solutions offers a range of tailored ICs, such as the ICL8830 for single flyback topology, XDPS2221E for PFC and Asymmetrical Half Bridge, and XDPS22201E for standalone asymmetrical half bridge, which are specifically designed to drive GaN and Si devices without limiting the system switching frequency. Additionally, Infineon has developed a family of MCUs, called PSOC™ Control C3, to drive WBG effectively and perform effective power conversation for a notably wide power range. To accommodate the faster switching transients of GaN HEMTs, Infineon's ICL8830 supports high frequency operation. 

Design and create efficient LED driver solutions that prioritize increased power density and reduced energy consumption with Infineon’s GaN technology

Infineon CoolGaN™

About Infineon solutions for LED drivers

LED applications are often powered by an AC-DC supply. Since the LED drivers’ purpose is to control the current flow through the LED, this results in the need for a LED driver to provide constant current.

Regardless of the many functions such as communication required by LED lighting, the development of the power supply block is, where several functions are concentrated, a key point. The current LED solutions, including LED lighting drivers, offer excellent dimming options for diverse topologies using DALI, push-dim, NFC configuration, or 1-10 V.

LED lighting power supply units and LED driver designs are required to offer maximum efficiency, power factor (PFC), total harmonic distortion (THD), and are subject to specific requirements regarding safety (EN 61347-1/-2-13), EMC (EN 55015), harmonic current emissions, and further specific requirements of standards such as UL and IEC.

Infineon portfolio for LED drivers

Infineon offers a truly expansive portfolio of semiconductor solutions for LED drivers, with which you can create diverse and innovative LED lighting designs. 

Starting with the AC-DC stage, we offer ICs for many topologies such as PFC, flyback, LLC, and LCC, for constant current output. We also offer our CoolMOS™ high-voltage power MOSFETs for the AC-DC stage. Moving over to the DC-DC stage, our portfolio includes DC-DC buck controllers. We also offer NFC ICs for configuration and 1 - 10 V dimming interface ICs.

Check out the block diagram below for a full breakdown of our solutions.

Choosing the right LED driver ICs

Infineon delivers innovative, high-performance LED driver ICs solutions with best-in-class technologies that can be used in a broad range of LED lighting applications. The type of LED driver used in a lighting application has a significant impact on the overall performance. Therefore, you benefit in many ways from choosing the right LED driver IC product that best fits your needs.

It is important to know the difference between a constant current LED driver compared to an LED driver with constant voltage when choosing which LED driver to use. The main difference between the two is that a constant current LED driver is designed to operate within a certain range of output voltages and has a fixed output current, while a constant voltage LED driver is designed for a single DC output voltage. Therefore, the desired features of a dimmable constant current LED driver are high efficiency, high power factor (PF), low total harmonic distortion (THD), and a stable output current. They are a suitable option for high quality LED lighting such as streetlights, high-bay lighting, or office lighting.

Explore LED driver ICs

Choosing semiconductors for LED drivers

The type of LED driver used in an LED lighting application has a significant impact on key system performance indicators such as efficiency, dimming capability, power quality, light quality, i.e., ripple/flicker, configurability of parameters, i.e., output current, and the ability to support add-on features such as power monitoring. In addition, product lifetime system efficiency is influenced by the choice of topology and components used.

A resonant topology, for instance, can increase LED driver efficiency by 5%. The right MOSFETs, a high-voltage start-up cell, as well as synchronous rectification, can also have a positive impact. Dimming down to 1% light output has become mainstream for indoor lighting. Design strategies usually use analog dimming to a certain level and then switch to PWM dimming for lower levels. Many customers demand compliance with PFC and THD regulatory requirements at 50% dimming. LED driver power supply based on a single-stage flyback topology usually has an output current ripple of ±30%. Growing dissatisfaction with this ripple is fueling widespread adoption of two-stage topologies, i.e., single-stage PFC flyback combined with a secondary buck regulator.

Wide bandgap solutions optimized for LED lighting

By leveraging GaN solutions, Infineon's LED drivers offer more efficient power conversion, faster switching, and improved power density, ultimately enhancing integration. Our GaN technology enables higher efficiency, improved thermal performance, and advanced power management, making it an ideal choice for modern lighting systems.

Infineon's portfolio of GaN products and solutions offers a range of tailored ICs, such as the ICL8830 for single flyback topology, XDPS2221E for PFC and Asymmetrical Half Bridge, and XDPS22201E for standalone asymmetrical half bridge, which are specifically designed to drive GaN and Si devices without limiting the system switching frequency. Additionally, Infineon has developed a family of MCUs, called PSOC™ Control C3, to drive WBG effectively and perform effective power conversation for a notably wide power range. To accommodate the faster switching transients of GaN HEMTs, Infineon's ICL8830 supports high frequency operation. 

Design and create efficient LED driver solutions that prioritize increased power density and reduced energy consumption with Infineon’s GaN technology

Infineon CoolGaN™

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