AL5801W6Q-7

Overview

The AL5801W6Q-7 is a linear LED driver IC from Diodes Incorporated, designed for single-channel constant current regulation. It integrates a 100V N-channel MOSFET with a prebiased NPN transistor to provide a compact solution for LED applications. The device supports PWM dimming and operates within a supply voltage range of 3.5V to 20V, delivering an output current of 350mA. It features an internal switch and is housed in a SOT-26 package. The component functions with an output voltage range of 1.1V to 100V and is rated for operation between -40°C and 125°C.

Feature Summary

• Integrates a 100V N-channel MOSFET and prebiased NPN transistor for simplified circuit design
• Supports PWM dimming control for brightness adjustment
• Provides constant current regulation for single-channel LED loads

Applications

• Signage lighting systems
• General LED illumination circuits
• Low-power indicator applications

Procurement Notes

Verify the specific suffix 'W6Q' against official Diodes Incorporated documentation to confirm pinout and electrical specifications match the required design parameters. Ensure compatibility with the target PCB footprint, specifically the SOT-26 package dimensions. Cross-reference RoHS3 compliance status if environmental regulations apply to the final assembly. Confirm that the operating temperature range meets the thermal requirements of the intended enclosure.

Selection Notes

Select this component when a high-voltage linear driver is required for single-channel LED strings. The integrated MOSFET reduces external component count compared to discrete solutions. Consider the thermal dissipation capabilities inherent to the linear topology and SOT-26 package size. Verify that the input voltage remains within the specified 3.5V to 20V range to ensure stable operation and prevent damage to the internal circuitry.

Part Context

This part belongs to the AL5801 series of LED drivers from Diodes Incorporated. The series focuses on simple, cost-effective solutions for driving LEDs using linear regulation. The W6Q suffix typically denotes specific packaging or material variations within the standard AL5801 family, adhering to the same core functional architecture and electrical characteristics as other variants in the line.

Replacement Considerations

AL5801W6-7 is listed as a parameter-equivalent alternative by distributors.