AL5809-50P1-7

Overview

The AL5809-50P1-7 is a linear constant current LED driver from Diodes Incorporated, designed for high-voltage applications. It operates with an input voltage range of 2.5 V to 60 V and supports a maximum output voltage of 60 V. The device delivers a fixed output current of 50 mA, suitable for driving single-channel LED loads. It features PWM dimming capability with a frequency range of 100 Hz to 200 Hz. Packaged in the compact PowerDI-123-2 surface-mount format, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Linear topology for simplified circuit design without external inductors
• Integrated PWM dimming interface for brightness control
• High voltage tolerance up to 60 V for direct mains or high-side connections
• Compact PowerDI-123-2 package for space-constrained PCB layouts

Applications

• LED lighting modules requiring constant current regulation
• High-voltage LED string drivers in commercial fixtures
• General-purpose LED indicator circuits
• Automotive interior lighting systems

Procurement Notes

Verify the specific suffix P1-7 against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure the selected variant matches the required 50 mA output current specification. Cross-reference the PowerDI-123-2 footprint with your PCB library. Confirm RoHS compliance status through official documentation before finalizing procurement orders.

Selection Notes

Select this component when a linear solution is preferred over switching regulators for low-noise LED applications. The 50 mA output current defines its suitability for medium-brightness LEDs. Consider thermal dissipation requirements given the linear topology at higher voltage drops. Verify that the 60 V maximum rating accommodates the total forward voltage of the LED string plus headroom.

Part Context

This part belongs to the AL580 series of two-terminal LED drivers from Diodes Incorporated. Similar variants include the AL5809-25P1-7 (25 mA), AL5809-40P1-7 (40 mA), and AL5809-100P1-7 (100 mA). All share the same linear architecture, 60 V rating, and PowerDI-123-2 package, differing primarily in their fixed output current settings.

Replacement Considerations

Direct substitutes within the same family include AL5809-25P1-7, AL5809-40P1-7, and AL5809-100P1-7 if current adjustment is acceptable. External replacements require matching linear topology, 60 V rating, and 50 mA output current. Verify pin compatibility and thermal performance characteristics before substitution.