AL5890-15Y-13

Overview

The AL5890-15Y-13 is a constant current LED driver manufactured by Diodes Incorporated. It operates with an input voltage range of 7 V to 400 V and provides a fixed output current of 15 mA. The device utilizes a boost topology and functions at a switching frequency of 20 kHz. It supports a maximum output voltage of 400 V and includes thermal foldback protection. The component is housed in a PowerDI123 package, which corresponds to the SOT-89-3 form factor, and is rated for operation between -40°C and +105°C.

Feature Summary

• Provides regulated constant current output for single-channel LED applications
• Integrates thermal foldback protection to manage junction temperature
• Supports wide input voltage ranges suitable for high-voltage LED strings

Applications

• LED lighting driver circuits
• High-voltage LED string regulation
• General-purpose constant current LED sources

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's official documentation to confirm pinout compatibility and package type, as variations exist within the AL5890 family. Confirm RoHS compliance status through the latest datasheet or environmental declaration. Ensure the supplier provides valid traceability documents. Cross-reference the part number with the official Diodes Incorporated catalog to avoid confusion with similar linear or switching variants.

Selection Notes

Select this component when designing circuits requiring a fixed 15 mA drive current for LEDs powered by voltages up to 400 V. The boost topology makes it suitable for driving series-connected LED arrays where the supply voltage may be lower than the total forward voltage drop. Consider the PowerDI123 package size for space-constrained surface-mount designs. Evaluate thermal management requirements given the power dissipation characteristics in linear regulation modes.

Part Context

The AL5890-15Y-13 belongs to the AL5890 series of LED drivers from Diodes Incorporated. This series focuses on providing simple, cost-effective solutions for driving LEDs with constant current. The 'Y' suffix typically denotes a specific package variant, often associated with the SOT-89-3 footprint, distinguishing it from other packaging options like the PowerDI123 found in related models such as the AL5890-15P1-13.

Replacement Considerations

The AL5890-15P1-13 is a functionally similar alternative within the same series but utilizes a PowerDI123 package instead of the SOT-89-3 form factor. Verify pin-to-pin compatibility before substitution. Other members of the AL5890 family may offer different current ratings or topologies.