AL5802LP4-7

Overview

The AL5802LP4-7 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output applications. It integrates a high-gain NPN transistor with a pre-biased NPN transistor to provide a simple, small-footprint solution. The device features an adjustable current sink with a reference voltage of 0.65V and supports output currents up to 150 mA. It operates within a supply voltage range of 5V to 24V and can handle output voltages from 0.8V to 30V. The component utilizes a DFN-1616-6 package and functions reliably across temperatures from -40°C to +150°C.

Feature Summary

• Integrates high-gain and pre-biased NPN transistors for simplified circuit design
• Provides open-collector output capability for flexible voltage operation
• Includes reverse polarity protection for enhanced system reliability

Applications

• LED lighting drivers requiring compact footprints
• General-purpose LED indicator circuits
• Low-voltage power supply LED regulation

Procurement Notes

Verify the specific suffix LP4 against the required datasheet revision, as variations exist within the AL5802 family. Confirm availability status, as some distributors list this part as discontinued or out of stock. Ensure the ordering information matches the exact package type and marking requirements for your assembly process before finalizing procurement.

Selection Notes

Select this component when a linear topology is acceptable for the application's thermal constraints. It is suitable for designs requiring adjustable current sinking without complex external control loops. Consider the 150 mA maximum output current limit and the 30V maximum voltage rating to ensure compatibility with the target LED string configuration and power supply rails.

Part Context

This part belongs to the AL580 series of LED drivers from Diodes Incorporated. The series focuses on providing cost-effective, easy-to-use solutions for driving LEDs in various consumer and industrial electronics. The AL5802 variant specifically targets applications needing a simple two-transistor structure for current regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.