HLMP-3568 datasheet by Avago Technologies

HLMP-3568 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the component side of the PCB clear of copper to minimize thermal resistance.
• How do I ensure reliable operation over the full temperature range?
  Ensure proper thermal design, use a suitable heat sink, and follow the recommended PCB layout. Also, ensure that the input voltage and current are within the specified limits.
• What is the maximum LED current that can be driven by the HLMP-3568?
  The maximum LED current is 350mA per channel, but it can be increased to 700mA by paralleling the channels. However, this may affect the overall efficiency and thermal performance.
• Can I use the HLMP-3568 with a boost converter to drive higher voltage LEDs?
  Yes, the HLMP-3568 can be used with a boost converter to drive higher voltage LEDs. However, ensure that the boost converter is designed to handle the high-frequency switching of the HLMP-3568.
• How do I adjust the brightness of the LEDs using the HLMP-3568?
  The brightness of the LEDs can be adjusted by using the EN/DIM pin to control the duty cycle of the output current. A higher duty cycle results in higher brightness, and a lower duty cycle results in lower brightness.