AL8891QT16E-13

Overview

The AL8891QT16E-13 is a synchronous buck LED driver IC from Diodes Incorporated, designed for high-efficiency lighting applications. It features an integrated power switch capable of delivering up to 2 A output current. The device operates within an input voltage range of 4.5 V to 65 V and supports output voltages from 1 V to 65 V. It functions at a fixed switching frequency of 2.5 MHz and accepts both analog and PWM dimming signals. The component is housed in a TSSOP-16EP package and includes overtemperature thermal protection with auto-restart functionality.

Feature Summary

• Integrates a high-side N-channel power switch for compact solution design
• Supports precise analog and pulse-width modulation (PWM) dimming control
• Includes built-in overtemperature protection with automatic restart capability

Applications

• General LED lighting fixtures
• Commercial linear LED drivers
• High-bay industrial lighting systems

Procurement Notes

Verify the specific suffix 'T16E' corresponds to the required TSSOP-16EP package variant during procurement. Confirm that the order quantity aligns with the manufacturer's standard reel packaging specifications. Ensure compatibility with the intended PCB footprint for the exposed pad thermal enhancement package. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing standards and pinout configurations.

Selection Notes

Select this component for designs requiring a non-isolated step-down topology with high efficiency. It is suitable for applications needing wide input voltage ranges up to 65 V. Consider the 2.5 MHz switching frequency for smaller passive component sizes. Ensure the thermal management strategy accommodates the TSSOP-16EP package requirements for optimal heat dissipation under maximum load conditions.

Part Context

This part belongs to the AL8891Q series of LED lighting driver ICs manufactured by Diodes Incorporated. The series focuses on medium-voltage applications with integrated switching capabilities. The AL8891QT16E-13 specifically denotes the tape-and-reel version of the automotive-grade or industrial-grade chip, distinguishing it from evaluation boards like the AL8891QEV1.

Replacement Considerations

Check for direct substitutes within the AL8891 family or other synchronous buck LED drivers from Diodes Incorporated. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.