ICL5101 High-Voltage Resonant Controller IC for LED Driver

The LED driver IC ICL5101 integrates a half-bridge controller with a PFC stage in a single package. The high level of integration assures a low count of external components enabling small form factor designs ideal for compact power supplies in lighting applications, such as an LED driver. ICL5101

Applications:

  • Indoor and outdoor high-power LED lighting
  • High- and low-bay lighting
  • Street lighting
  • Parking garages and area lighting
  • Office panel lighting
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The half-bridge resonant stage in LLC topology provides high- and low-side gate drive function for discrete power MOSFETs. Infineon’s CoolMOS™ series P6, C6 and CE perfectly fit within this application:

Recommendations for CoolMOS™ Power MOSFETs for ICL5101 LED Driver

• PFC stage

 600 V CoolMOS™ C6

• LLC stage
  • Price/Performance optimized
  • Cost optimized
  • Performance optimized
 600 V CoolMOS™ C6600 V CoolMOS™ CE600 V CoolMOS™ P6

Most operation parameters of the IC are adjustable by simple resistors; this brings the ideal choice for cheap and reliable configuration – compared to capacitor-driven solutions. A comprehensive set of protection features including external over-temperature protection and capacitive load protection ensures the detection of fault conditions to increase the system safety by protecting both the LED driver and the LED load. For more information to this topic read the Whitepaper – "Intelligent Over Temperature for LED Lighting Applications"

ICL5101 is Tailored to Cover the Needs of LED Professional Lighting

Input Input

  • Universal input from 80 – 305 V
  • Ultra-fast time to light <200>

Operation Operation
  • Secondary-side-controlled PFC+LLC
  • Fully integrated 650 V HB driver stage
  • Rated to outdoor use temperature range -40 to 125°C
  • High power quality with PFC >99% / THD <10%

Efficiency Efficiency
  • Highest efficiency up to 95% in resonant topology
  • High efficiency above 90% also in low load conditions down to 10%

Dimming Dimming
  • Supports low load condition down to 0.1% without entering active burst mode

Flexibility Flexibility
  • Low component count and easy to design with
  • Feature set with simple components

Protection Protection
  • Full set of protection features OCP/OVP/OLP/short output
  • Saturation control during startup
  • Adjustable ext. temperature protection

Low Component Count and Easy to Design

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Typical Application Schematic

Typical Application Schematic

CoolMOS™ Power MOSFETs for ICL5101 LED Driver:

• PFC stage

 600 V CoolMOS™ C6

• LLC stage
  • Price/Performance optimized
  • Cost optimized
  • Performance optimized
 600 V CoolMOS™ C6600 V CoolMOS™ CE600 V CoolMOS™ P6

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Resources

Product Brief ICL5101 General Lighting Brochure Intelligent Over Temperature for LED Lighting Applciations Light Desk - Lighting Design Tool Product Brief CoolMOS™ P6 Product Brief CoolMOS™ CE Product Brief CoolMOS™ C6