AL5809-15QP1-7

Overview

The AL5809-15QP1-7 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 features an integrated high-voltage switch. It is housed in a compact PowerDI 123 package with two pins, suitable for surface-mount assembly. The component functions as a linear regulator, offering a simple solution for driving LEDs without complex external circuitry.

Feature Summary

• Two-terminal architecture simplifies design by eliminating the need for multiple external components
• Integrated high-voltage switch enables direct connection to high-side or low-side loads
• Supports pulse-width modulation (PWM) dimming for precise brightness adjustment
• Fixed constant current regulation ensures stable LED performance across varying conditions

Applications

• LED lighting modules requiring constant current drive
• High-voltage LED string illumination systems
• General-purpose LED indicator circuits
• Compact LED backlighting solutions

Procurement Notes

Verify the specific suffix QP1 against official Diodes Incorporated documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the PowerDI 123 package. Cross-reference the part number with authorized distributors to confirm active status and availability. Check for any recent product change notices that may affect pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a simple, cost-effective solution for driving small LED strings is required. It is suitable for designs where space is limited due to its small footprint. Consider the 15mA output current limit when determining the number of LEDs per string. Ensure the supply voltage remains within the 2.5V to 60V operating range for reliable performance.

Part Context

This part belongs to the AL5809 series of two-terminal LED drivers from Diodes Incorporated. The series offers various fixed current options to suit different LED requirements. These drivers are designed for high-voltage applications, providing a robust alternative to more complex switching regulators. The AL5809 family is widely used in general lighting and indicator applications.

Replacement Considerations

Check for other variants within the AL5809 series with different current ratings if the 15mA specification does not match the application needs. Verify pinout compatibility with potential substitutes from other manufacturers. Ensure that any replacement maintains the same voltage and current capabilities.