LDS8641-008-T2

Overview

The LDS8641-008-T2 is a regulated LED driver IC from IXYS Integrated Circuits Division, designed for high-efficiency lighting applications. It features two independent outputs capable of delivering up to 200mA per channel. The device operates as a DC-DC regulator utilizing a switched capacitor (charge pump) topology, allowing it to drive LEDs from a supply voltage range of 2.7V to 5.5V while providing an output voltage up to 6V. It supports PWM dimming for brightness control and integrates internal switches within a compact 16-TQFN (3x3mm) package. The component functions reliably across a temperature range of -40°C to 85°C.

Feature Summary

• Dual-channel output architecture with independent regulation for precise current control
• Integrated charge pump topology enables efficient operation without external inductors
• Supports pulse-width modulation (PWM) dimming for dynamic brightness adjustment
• Compact surface-mount packaging facilitates integration into space-constrained designs

Applications

• Camera flash systems requiring high-current pulsed LED driving
• Portable electronic devices needing efficient backlighting solutions
• Mobile photography accessories utilizing multiple LED arrays

Procurement Notes

Verify the specific suffix and tape-and-reel configuration against your manufacturing requirements. Confirm that the component status aligns with long-term availability needs, as some variants may be discontinued. Ensure compatibility with existing PCB footprints and thermal management strategies before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring dual independent LED channels driven by a single controller. The charge pump topology is suitable for battery-powered applications where inductor-based solutions are undesirable due to size or cost constraints. Verify that the input voltage range matches the system power source and that the 200mA output current meets the target LED specifications.

Part Context

This part belongs to the PowerLite series of LED drivers from IXYS Integrated Circuits Division. It shares architectural similarities with other models in the family but is distinguished by its specific output count and current ratings. The series focuses on providing integrated solutions for portable electronics, reducing the bill of materials by combining regulation, switching, and protection features into a single small-footprint package.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in available documentation. Engineers should consult official manufacturer cross-reference guides or contact IXYS sales support directly for validated alternatives if this component is unavailable.