MAX6978AUE+

LED Driver IC Overview

The MAX6978AUE+ is an 8-channel constant-current LED driver IC manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3 V to 5.5 V and provides an output current of 55 mA per channel. The device utilizes a 16-TSSOP package with an exposed pad for thermal management. It supports I²C interface communication and functions as a linear driver with internal switches. The component is rated for an operating temperature range from -40°C to +125°C.

LED Driver IC Feature Summary

• Provides eight independent constant-current channels for precise LED brightness control
• Integrates I²C serial interface for simplified digital control and data transmission
• Includes internal switching capability to manage high-side or low-side load configurations

LED Driver IC Applications

• LED signage displays
• Automotive display clusters
• Backlight driver systems

LED Driver IC Procurement Notes

Verify the specific suffix 'A' in the part number MAX6978AUE+ against official datasheets, as it may denote specific manufacturing revisions or testing criteria not present in standard variants. Confirm RoHS compliance status through the manufacturer's certification documents prior to integration. Ensure the TSSOP-16 footprint matches the PCB design guidelines provided in the latest package drawing.

LED Driver IC Selection Notes

Select this component when designing systems requiring multiple individually addressable LED channels with fixed current regulation. The 55 mA output capability suits standard indicator and segment applications. Consider the 16-TSSOP-EP package for its thermal dissipation advantages in compact layouts. Verify that the host controller supports the required I²C protocol speeds and addressing schemes for reliable operation.

LED Driver IC Part Context

This part belongs to the MAX6978 series of LED drivers, which are designed for driving 7-segment displays and general-purpose LED arrays. It serves as a successor or variant to earlier models like the MAX6977, offering similar functionality with potential updates in packaging or revision levels. The series is characterized by its ability to reduce external component count through integrated current sources and shift register capabilities.

LED Driver IC Replacement Considerations

The MAX6977AUE+ is a documented related part within the same family. However, verify pinout compatibility and specific electrical parameter differences before substitution. No other direct public substitute part numbers are confirmed for this specific model.