AL5809-50QP1-7

Overview

The AL5809-50QP1-7 is a linear LED driver IC from Diodes Incorporated, designed for automotive applications with AEC-Q100 qualification. It operates within an input voltage range of 2.5 V to 60 V and delivers a constant output current of 50 mA. The device supports PWM dimming at frequencies between 100 Hz and 200 Hz. It features a maximum supply voltage of 60 V and handles up to 1.2 W power dissipation. Operating temperatures span from -40 °C to +85 °C. The component is housed in a PowerDI-123-2 package.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Integrated high-voltage internal switch for simplified design
• Supports pulse-width modulation dimming control
• Linear topology with single-channel constant current output

Applications

• Automotive exterior lighting systems
• Interior vehicle illumination circuits
• LED indicator modules requiring high-voltage tolerance

Procurement Notes

Verify the specific suffix QP1 against official Diodes Incorporated documentation to confirm package type and tape-and-reel specifications. Ensure the part meets AEC-Q100 requirements for your target automotive application. Cross-reference the datasheet revision date to confirm compatibility with your design constraints. Confirm that the PowerDI-123-2 footprint matches your PCB layout guidelines before finalizing procurement.

Selection Notes

Select this model when a 50 mA constant current drive is required for automotive LED applications. The 60 V input range accommodates various supply voltages common in vehicle electrical systems. The linear topology simplifies circuit design by reducing external component count compared to switching regulators. Consider the thermal performance limits defined by the 1.2 W power dissipation rating during selection.

Part Context

This component belongs to the AL5809 series of linear LED drivers manufactured by Diodes Incorporated. The series offers various current options tailored for different lighting intensities. The AL5809-50QP1-7 specifically targets the 50 mA segment with automotive-grade certification. It shares core architectural features with other variants in the family while differing in output current and packaging details.

Replacement Considerations

Check for AL5809-50P1-7 if the QP1 suffix denotes specific automotive packaging or testing variations not present in the standard P1 version. Verify pinout compatibility and thermal characteristics when substituting with other linear LED drivers from different manufacturers.