AOZ1084DI

Overview

The AOZ1084DI is a single-output DC-DC buck converter LED driver IC manufactured by Alpha & Omega Semiconductor Inc. It features an integrated power switch capable of delivering up to 1.2A output current. The device operates with a supply voltage range from 4.5V to 36V and supports PWM dimming for brightness control. It functions at a switching frequency of 450kHz and is housed in an 8-WFDFN package with an exposed pad, rated for ambient temperatures between -40°C and 85°C.

Feature Summary

• Integrates a high-side N-channel power switch for compact design
• Supports precise PWM dimming for adjustable LED brightness
• Operates within a wide input voltage range suitable for various power sources

Applications

• General solid-state lighting systems
• Commercial signage illumination
• Automotive interior lighting applications

Procurement Notes

Verify the specific suffix 'DI' corresponds to the 8-DFN-EP(2x2) package and tape-and-reel configuration. Confirm RoHS compliance status and check for any Product Change Notifications (PCN) regarding manufacturing site changes or material updates before finalizing procurement specifications.

Selection Notes

Select this component when a non-isolated buck topology is required for driving LEDs from higher voltage rails. Ensure the thermal design accommodates the 8-WFDFN package limitations. Verify that the required dimming signal aligns with the controller's PWM input specifications and that the load current does not exceed the internal switch rating.

Part Context

This part belongs to the Alpha & Omega Semiconductor LED driver portfolio, specifically designed for constant current regulation in lighting applications. It utilizes a fixed-frequency current mode control architecture to maintain stable output currents under varying input voltage conditions.

Replacement Considerations

No public substitute part numbers are documented in the provided source material.