THL3502

Overview

The THL3502 is an LED driver IC manufactured by CEL, designed for high-channel-count lighting applications. It features 24 output channels with a maximum current of 100mA per channel and supports power switch dimming control. The device is housed in a compact 48-QFN package measuring 7x7 mm, suitable for space-constrained PCB layouts.

Feature Summary

• Integrates 24 independent output channels for multi-zone LED control
• Supports power switch dimming functionality for brightness adjustment
• Delivers up to 100mA output current per channel
• Utilizes a compact 48-QFN (7x7mm) surface-mount package

Applications

• LED lighting driver circuits
• Multi-zone LED illumination systems
• Compact electronic lighting modules

Procurement Notes

Verify the exact manufacturer designation, as 'CEL' may refer to Common Expression Language or other entities distinct from the semiconductor producer. Confirm the specific suffix variant (e.g., THL3502-B) matches the required pinout and thermal specifications. Ensure the 48-QFN footprint aligns with the target PCB design before procurement.

Selection Notes

Select this component when designing LED drivers requiring multiple synchronized outputs within a small form factor. The 100mA per-channel capability suits standard indicator or low-power display arrays. Evaluate the 48-QFN thermal performance against the total power dissipation of all active channels to ensure reliable operation under load.

Part Context

The THL3502 belongs to a family of integrated LED drivers focused on simplifying multi-channel control architectures. By consolidating 24 outputs into a single QFN package, it reduces component count compared to discrete solutions. This integration aids in minimizing board space while maintaining precise current regulation across all connected LED segments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing driver topologies if considering alternatives.