AL1678-10BS7-13

Overview

The AL1678-10BS7-13 is a non-isolated buck LED driver IC from Diodes Incorporated, designed for offline AC/DC applications. It operates within an input voltage range of 85 VAC to 277 VAC and supports a maximum output voltage of 500 V. The device delivers a constant current of 5 mA with a power dissipation capability of 0.48 W. Operating at a switching frequency of 200 kHz, it utilizes a SO-7 package. Key protection features include short circuit and thermal shutdown mechanisms, ensuring reliable performance in LED lighting systems.

Feature Summary

• Integrated non-isolated buck topology for efficient offline AC/DC conversion
• Constant current output regulation suitable for driving LED strings
• Built-in short circuit and thermal protection for enhanced system safety

Applications

• Offline LED lighting drivers
• Non-isolated AC/DC LED power supplies
• General illumination LED modules

Procurement Notes

Verify the specific suffix 'S7-13' against the manufacturer's official datasheet to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status through the latest component documentation. Ensure the selected variant matches the required operating temperature range and pinout configuration for your PCB design before finalizing procurement.

Selection Notes

Select this component for designs requiring a simple, non-isolated buck converter solution for low-current LED applications. Verify that the 5 mA output current aligns with the target LED string requirements. Ensure the SO-7 package fits the available board space and that the 200 kHz switching frequency is compatible with the electromagnetic interference constraints of the final product.

Part Context

This part belongs to the AL1678 series of LED drivers from Diodes Incorporated. These components are engineered for cost-effective, high-performance lighting solutions. The series focuses on simplifying design by integrating control logic and power switches into a compact package, reducing external component count while maintaining robust protection features for commercial and industrial lighting.

Replacement Considerations

Consult the manufacturer's official substitution guide for verified alternatives. Cross-reference pinouts and electrical parameters such as input voltage range and output current capabilities. Ensure any substitute component maintains compatibility with the non-isolated buck topology and meets the same thermal and protection standards.