AL1676-20AS7-13

Overview

The AL1676-20AS7-13 is an offline LED driver IC from Diodes Incorporated, designed for high-efficiency power supply in LED lighting applications. It features a Buck topology with one output channel capable of delivering up to 2 A constant current. The device operates within an input voltage range of 85 VAC to 277 VAC and supports a maximum output voltage of 650 V. Operating at a fixed frequency of 200 kHz, it integrates short circuit and thermal protection mechanisms. Packaged in an SO-7 surface-mount format, it functions reliably across temperatures from -40°C to +105°C.

Feature Summary

• Provides constant current regulation for single-channel LED loads
• Integrates hardware-based short circuit and thermal protection
• Supports dimming control capabilities for brightness adjustment

Applications

• General LED lighting systems
• Display backlighting units
• Indicator control circuits

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated channels or certified distributors. Confirm RoHS compliance status via official documentation. Check for end-of-life notifications as discontinuation may affect long-term availability. Ensure the SO-7 package variant matches design requirements before procurement.

Selection Notes

Select this component for designs requiring a single-channel buck converter solution for AC mains-powered LEDs. Verify that the 2 A output current meets load requirements. Ensure the PCB layout accommodates the SO-7 package dimensions. Confirm compatibility with required dimming interfaces and operating temperature ranges specified in the datasheet.

Part Context

Part of the AL1676 series, which includes variants like AL1676-40DS7-13 offering higher current ratings. This specific model targets mid-power LED applications where compact SO-7 packaging and integrated protection features are prioritized over multi-channel outputs.

Replacement Considerations

AL1676-40DS7-13 offers similar functionality with increased output current capacity. Verify pinout compatibility and thermal performance differences when substituting.