AL8843SP-13

LED Driver IC Overview

The AL8843SP-13 is a single-channel constant current LED driver IC manufactured by Diodes Incorporated. It utilizes a buck topology to regulate output current for LED applications. The device supports an input voltage range from 4.5 V to 40 V and delivers up to 3 A of output current. It operates at a fixed switching frequency of 250 kHz. The adjustable output voltage capability allows flexibility in circuit design. The component is housed in an SOIC-8 package with exposed pad for thermal performance. It functions within a temperature range of -40°C to +105°C, ensuring reliability in various environments.

LED Driver IC Feature Summary

• Integrates a high-voltage internal switch for simplified circuit design
• Supports PWM dimming for precise brightness control
• Includes open LED protection to prevent damage during fault conditions

LED Driver IC Applications

• LED lighting drivers
• General-purpose step-down DC/DC conversion
• Constant current regulation for LED strings

LED Driver IC Procurement Notes

Verify the specific ordering suffix matches the required tape and reel quantity. Confirm RoHS compliance status through official documentation before integration. Ensure the SOIC-8 package dimensions align with PCB footprint requirements. Check for any regional distribution restrictions or supply limitations that may affect procurement timelines.

LED Driver IC Selection Notes

Choose this component for applications requiring a compact buck converter solution with integrated power switching. The fixed 250 kHz frequency offers a balance between efficiency and external component size. Consider the 3 A current limit when sizing heat dissipation strategies. The wide input voltage range accommodates various supply sources common in automotive and industrial LED systems.

LED Driver IC Part Context

This part belongs to the AL8843 series of LED drivers from Diodes Incorporated. It is designed specifically for medium-power LED illumination tasks. The series focuses on providing robust protection features and efficient power management in a small form factor. It serves as a cost-effective alternative to discrete solutions for driving multiple LEDs in series.

LED Driver IC Replacement Considerations

Consult official Diodes Incorporated substitution guides for verified alternatives. Cross-reference pinout compatibility and electrical specifications carefully. Ensure any substitute maintains the same SOIC-8 package and thermal characteristics.