AOZ1978AI

Overview

The AOZ1978AI is a dual-channel high-voltage LED driver integrated circuit manufactured by Alpha & Omega Semiconductor Inc. Designed for boost converter topologies, this component operates within a supply voltage range of 4.5V to 25V and supports peak output currents up to 120A. It utilizes Pulse Width Modulation (PWM) interface technology for precise control. The device is housed in a 16-SOIC surface-mount package, ensuring compatibility with standard PCB layouts. Operating temperatures span from -40°C to 150°C junction temperature, providing robust performance in demanding thermal environments.

Feature Summary

• Dual-channel architecture enabling independent or synchronized control of multiple LED strings
• Integrated boost converter capability for efficient high-voltage LED driving applications
• Built-in fault protection mechanisms including over-current and thermal shutdown safeguards

Applications

• Automotive exterior lighting systems requiring high reliability
• Industrial LED illumination arrays
• General-purpose high-brightness LED drivers

Procurement Notes

Verify the specific suffix 'AI' against the manufacturer's latest datasheet to confirm pinout and electrical specifications. Confirm RoHS3 compliance status prior to integration. Check for obsolescence notices as component availability may vary. Ensure the 16-SOIC package dimensions match your PCB footprint requirements exactly before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring dual-channel LED control with integrated boost functionality. Consider the 16-SOIC package size for space-constrained designs. Evaluate the 25V maximum supply voltage limit against your system's power rail. Ensure thermal management strategies accommodate the 150°C junction temperature rating for long-term stability.

Part Context

This part belongs to the AOZ1978 series of dual-channel high-voltage LED drivers. It shares functional similarities with other members of the family but differs in packaging and specific electrical ratings. The AI suffix typically denotes a specific tape-and-reel packaging configuration or variant within the broader product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinouts and electrical characteristics with alternative dual-channel LED drivers.