AL5809-15P1-7

Overview

The AL5809-15P1-7 is a two-terminal constant current LED driver from Diodes Incorporated, designed for high-voltage applications. It operates within an input voltage range of 2.5V to 60V and delivers a fixed output current of 15mA. The device supports PWM dimming for brightness control and functions as a linear regulator with a maximum power dissipation of 1.2W. It is housed in a compact PowerDI 123 surface-mount package with two pins. The component ensures stable operation across a wide temperature range from -40°C to +125°C.

Feature Summary

• Two-terminal architecture simplifies circuit design by eliminating external components
• Integrated PWM dimming capability allows precise brightness control
• Linear regulation topology provides stable constant current output
• High voltage tolerance enables direct connection to AC/DC sources

Applications

• LED signage lighting systems
• General LED illumination drivers
• High-voltage LED string regulation

Procurement Notes

Verify the specific suffix P1 against official Diodes Incorporated documentation to confirm the PowerDI 123 package type and tape-and-reel orientation. Ensure the 15mA current rating matches the target LED load requirements. Cross-reference the AEC-Q100 qualification status if automotive compliance is required. Confirm RoHS compliance details via the manufacturer's latest datasheet revision.

Selection Notes

Select this component when a simple, low-component-count solution is needed for high-voltage LED strings. The fixed 15mA output suits indicator or low-power display applications. Consider the thermal performance given the 1.2W dissipation limit in enclosed spaces. Verify that the 60V maximum voltage aligns with the total forward voltage of the connected LEDs.

Part Context

This part belongs to the AL5809 series of two-terminal LED drivers. Variants in this family offer different fixed current outputs ranging from 15mA to 150mA. The series shares common features such as PWM dimming and high-voltage operation but differs in package options like SOD-123 or PowerDI 123. The AL5809-15P1-7 specifically denotes the 15mA variant in the PowerDI 123 package.

Replacement Considerations

Check for AL5809-15S1-7 for the same electrical specifications in an SOD-123 through-hole package. Verify AL5809-15QP1-7 for the automotive-grade qualified version in the PowerDI 123 package.