MAX6970AAE+

LED Driver IC Overview

The MAX6970AAE+ is an 8-port, 36V constant-current LED driver IC manufactured by Analog Devices Inc./Maxim Integrated. It features a serial interface and provides eight open-drain outputs capable of driving LEDs with configurable current ranging from 20mA to 150mA via external resistors. The device operates on a supply voltage between 3V and 5.5V, while supporting output voltages up to 36V. It utilizes a linear shift register topology for dimming control without requiring a microcontroller. The component is housed in a 16-SSOP package with dimensions of 0.209 inches (5.30mm) width.

LED Driver IC Feature Summary

• Provides eight independent constant-current LED driver channels with open-drain outputs
• Enables programmable output current settings from 20mA to 150mA using external resistors
• Integrates a serial interface and linear shift register for simplified control logic
• Supports operation across a wide temperature range suitable for industrial applications

LED Driver IC Applications

• General lighting systems
• Signage displays
• LED indicator arrays

LED Driver IC Procurement Notes

Verify the specific suffix 'AAE+' against the official datasheet to confirm the 16-SSOP package variant. Confirm RoHS compliance status as manufacturing updates may occur. Check for obsolescence notices or lifecycle changes directly from Analog Devices. Ensure the required operating temperature range aligns with the -40°C to 125°C specification. Validate pinout compatibility if replacing existing designs.

LED Driver IC Selection Notes

Select this component when an 8-channel solution is required for high-voltage LED strings up to 36V. The linear topology suits applications where precise current regulation is prioritized over efficiency compared to switching regulators. Ensure the design accommodates the thermal dissipation requirements inherent to linear drivers at higher currents. Verify that the serial interface protocol matches the host controller capabilities.

LED Driver IC Part Context

This part belongs to the MAX6970 family of LED drivers designed for multi-channel applications. It serves as a dedicated interface between low-voltage logic controllers and high-voltage LED loads. The family includes variants with different packages and temperature ratings, such as the TSSOP version. It addresses the need for scalable LED control in signage and lighting without complex microcontroller overhead.

LED Driver IC Replacement Considerations

Direct substitutes include other MAX6970 variants like the MAX6970AUE, which shares similar electrical characteristics but differs in package type (TSSOP vs SSOP). Cross-reference pinouts carefully when substituting package types. No alternative functional equivalents are confirmed in public documentation.