AL5802-7

Overview

The AL5802-7 is a linear LED driver IC from Diodes Incorporated, housed in a SOT-26 package. It integrates a high-gain NPN transistor with a pre-biased NPN transistor to provide a compact solution for LED current regulation. The device features an open-collector output capable of operating within a voltage range of 0.8V to 30V. It supports input supply voltages between 5V and 24V without requiring additional external components. The unit delivers an output current of 150mA and includes reverse polarity protection. Operating temperatures range from -40°C to +150°C.

Feature Summary

• Integrates high-gain and pre-biased NPN transistors for simplified circuit design
• Provides open-collector output suitable for various voltage levels
• Includes built-in reverse polarity protection

Applications

• LED lighting systems requiring simple current regulation
• Low-voltage power supply applications (5V to 24V)
• Compact electronic devices with limited board space

Procurement Notes

Verify the specific suffix and package type against official Diodes Incorporated datasheets before procurement. Confirm that the SOT-26 footprint matches your PCB layout requirements. Ensure the component meets RoHS compliance standards if required by your manufacturing process. Check for any obsolescence notices or lifecycle status updates directly from the manufacturer to avoid supply chain disruptions during production.

Selection Notes

Select this component when a low-cost, single-channel linear driver is needed for small form-factor designs. It is suitable for applications where PWM dimming is not required and simplicity is prioritized over efficiency. Consider thermal management capabilities given the linear topology. Verify that the load voltage drop remains within the specified 0.8V to 30V range for stable operation under all expected conditions.

Part Context

The AL5802 belongs to the AL580 series of LED drivers designed by Diodes Incorporated. This series focuses on providing robust, easy-to-use solutions for general-purpose LED illumination. The AL5802 specifically targets applications needing basic current sinking with minimal external component count. It complements other members of the family that may offer different current ratings or packaging options.

Replacement Considerations

Check for direct pin-compatible alternatives within the AL580 series. Verify electrical parameters such as maximum current and voltage ratings match your design constraints. Ensure the replacement part maintains the same SOT-26 package dimensions for seamless integration into existing hardware layouts.