LM3502SQ-25

LED Driver IC Overview

The LM3502SQ-25 is a step-up converter designed for white LED applications, manufactured by National Semiconductor. It features an output voltage option of 25V and supports PWM dimming with a maximum current of 600mA. The device operates as a DC-DC regulator suitable for dual display or large lighting applications.

LED Driver IC Feature Summary

• Integrated step-up converter topology optimized for white LED driving
• Supports pulse-width modulation (PWM) dimming control
• Configured for 25V output voltage application scenarios

LED Driver IC Applications

• White LED lighting systems
• Dual display backlighting
• Large area LED illumination

LED Driver IC Procurement Notes

Verify the specific suffix SQ-25 to confirm the 25V output variant. Ensure compatibility with National Semiconductor or Texas Instruments supply chains. Confirm lead-free status and LLP package requirements against project specifications before ordering.

LED Driver IC Selection Notes

Select this component when a fixed 25V boost output is required for white LEDs. Consider the 600mA drive capability and PWM dimming interface. Evaluate thermal performance in LLP packages for the intended enclosure constraints.

LED Driver IC Part Context

Part of the LM3502 family offering various output voltage options including 16V, 25V, 35V, and 44V. The SQ-25 designation specifically identifies the 25V version within this series of white LED drivers.

LED Driver IC Replacement Considerations

Check for LM3502SQ-16, LM3502SQ-35, or LM3502SQ-44 if different output voltages are needed. Verify pinout and functional equivalence with other white LED boost converters from compatible manufacturers.