AL5801W6-7

Overview

The AL5801W6-7 is a linear LED driver IC from Diodes Incorporated, integrating a 100V N-channel MOSFET with a pre-biased NPN transistor. It provides adjustable constant current regulation up to 350mA for single-channel applications. The device supports PWM dimming and operates within a supply voltage range of 3.5V to 20V, while handling output voltages from 1.1V to 100V. Designed for surface-mount installation in SOT-26 packages, it functions reliably across an operating temperature range of -40°C to 125°C.

Feature Summary

• Integrates a high-voltage N-channel MOSFET and pre-biased NPN transistor for simplified circuit design
• Supports pulse-width modulation (PWM) dimming for precise brightness control
• Provides adjustable constant current regulation suitable for various LED loads

Applications

• General LED lighting systems
• Signage illumination
• Backlighting applications

Procurement Notes

Verify the specific suffix W6 against the manufacturer's official datasheet to confirm pinout and package dimensions match your PCB layout requirements. Ensure that the thermal management strategy accounts for the linear topology's power dissipation characteristics under maximum load conditions. Confirm compliance with RoHS3 standards if required by your assembly specifications.

Selection Notes

Select this component when a cost-effective, single-channel solution is needed for driving LEDs with currents up to 350mA. It is appropriate for designs requiring high voltage tolerance up to 100V without external switching components. Consider the linear topology's efficiency implications compared to switching drivers for low-power or space-constrained applications where simplicity is prioritized over energy conversion efficiency.

Part Context

This part belongs to the AL5801 series of linear LED drivers manufactured by Diodes Incorporated. The series focuses on providing simple, footprint-efficient solutions for LED current regulation. The AL5801W6-7 variant specifically utilizes the SOT-26 package, distinguishing it from other pin-compatible or functionally similar parts in the broader portfolio that may offer different channel counts or voltage ratings.

Replacement Considerations

AL5801W6Q-7 is documented as a parameter-equivalent substitute.