AL8805W5-7

Overview

The AL8805W5-7 is a high-efficiency buck LED driver IC from Diodes Incorporated, designed for single-output applications. It operates within an input voltage range of 6 V to 36 V and delivers a switch current of 1 A. The device functions at a switching frequency of 1 MHz and supports both analog and PWM dimming methods. Packaged in a compact SOT-25 format, it is rated for operation between -40°C and +125°C with a maximum supply current of 5 mA.

Feature Summary

• Integrates a synchronous buck converter topology for high energy efficiency in LED lighting circuits.
• Supports precise light control through combined analog and pulse-width modulation dimming capabilities.
• Features internal compensation and protection mechanisms to ensure stable operation across varying load conditions.

Applications

• General solid-state lighting fixtures
• Automotive interior illumination systems
• Portable battery-powered LED lamps

Procurement Notes

Verify the specific suffix W5-7 to confirm the SOT-25 package and reel packaging configuration. Ensure compatibility with the required input voltage range of 6 V to 36 V for the target application. Confirm RoHS compliance status as indicated in the official datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a compact, single-channel buck driver is required for LED strings powered by 6 V to 36 V sources. The 1 A output current capability suits moderate-power LED arrays. Consider the SOT-25 footprint for space-constrained designs requiring integrated thermal management without external heat sinks.

Part Context

This part belongs to the AL88 series of LED drivers from Diodes Incorporated. It is specifically engineered as a step-down DC/DC converter optimized for driving LEDs directly from higher voltage rails. The series emphasizes high efficiency and compact form factors suitable for modern electronic lighting products.

Replacement Considerations

Check for direct pin-compatible alternatives within the AL88 family or other 1 A buck LED drivers in SOT-25 packages. Verify that substitute components support the same 1 MHz switching frequency and dual dimming modes to maintain circuit performance without redesign.

FAQ

What dimming methods does the AL8805W5-7 support?

The device supports both analog and pulse-width modulation (PWM) dimming for flexible brightness control.

What is the maximum input voltage for this driver?

The maximum operating input voltage is 36 V.