AL5809-20QP1-7

Overview

The AL5809-20QP1-7 is a linear LED driver IC from Diodes Incorporated, designed for constant current regulation in lighting applications. It features a single output channel delivering a fixed 20 mA drive current. The device operates within an input voltage range of 2.5 V to 60 V and supports a maximum output voltage of 60 V. It includes PWM dimming capability with a frequency range of 100 Hz to 200 Hz. Packaged in a PowerDI-123-2 surface-mount format, it is qualified under AEC-Q100 standards for automotive use, ensuring reliability across an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports pulse-width modulation (PWM) dimming for precise brightness control
• AEC-Q100 qualified for automotive electronics applications
• Integrated high-voltage switch for simplified circuit design

Applications

• Automotive interior and exterior LED lighting systems
• General-purpose LED illumination circuits
• Low-power indicator and status LED drivers

Procurement Notes

Verify the specific suffix 'QP1' confirms AEC-Q100 automotive qualification and the 20 mA output current setting when sourcing. Ensure the PowerDI-123-2 package footprint matches the target PCB layout. Confirm that the supplier provides official datasheets referencing the Diodes Incorporated part number to guarantee authenticity and correct parameter alignment.

Selection Notes

Select this component when a fixed 20 mA current is required for standard LEDs in automotive or industrial environments. The linear topology suits applications where efficiency is secondary to simplicity and cost. Consider the 60 V maximum voltage limit for series LED configurations. The PowerDI-123-2 package offers a compact solution for space-constrained designs requiring robust thermal performance.

Part Context

This part belongs to the AL5809 family of linear LED drivers from Diodes Incorporated. Variants within the series differ primarily in output current ratings and packaging options, such as the SOD-123-2 or PowerDI-123-2 packages. The AL5809 series is engineered for high-reliability applications, with specific suffixes denoting automotive qualification levels and reel specifications.

Replacement Considerations

Cross-reference other AL5809 variants like AL5809-100P1-7 for higher current needs or AL5809-20S1-7 for alternative packaging. Verify pinout compatibility and thermal characteristics before substitution. Ensure any replacement maintains the required AEC-Q100 qualification if used in automotive contexts.