AL1791AFE-13

Overview

The AL1791AFE-13 is a single-channel linear LED driver IC from Diodes Incorporated, designed for AC/DC applications. It operates within an input voltage range of 6.5 V to 30 V and delivers a constant output current of 1 A. The device supports PWM dimming and functions at frequencies between 500 Hz and 4 kHz. It is housed in a U-DFN4030-14 package and withstands supply voltages up to 30 V with an output voltage capability of 30 V. Operating temperatures span from -40°C to +125°C, with a maximum supply current of 2 mA.

Feature Summary

• Linear topology for single-channel constant current regulation
• Supports analog and PWM dimming control methods
• Integrated thermal protection mechanisms

Applications

• LED lighting drivers
• AC/DC powered illumination systems

Procurement Notes

Verify the specific suffix '13' against the manufacturer's official datasheet to confirm packaging configuration. Ensure the U-DFN4030-14 package matches your PCB footprint requirements. Confirm RoHS compliance status through the latest product documentation before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring a linear solution with high input voltage tolerance up to 30 V. The wide operating temperature range suits industrial environments. Verify that the 1 A output current aligns with the target LED load specifications and that the linear topology efficiency meets the thermal design constraints.

Part Context

This part belongs to the AL179 series of LED drivers manufactured by Diodes Incorporated. It is categorized under LED Lighting Drivers and Driver ICs. The component is distinct from switching regulators like the AL8890 or other linear variants such as the AL5817 due to its specific voltage range and channel configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.