MAX749ESA+T

Power Management - Specialized Overview

The MAX749ESA+T is a digitally adjustable LCD bias supply designed for TFT-LCD applications. It generates negative contrast voltages from input supplies ranging from 2V to 6V, with full-scale output scalable to -100V or greater. The device operates within a temperature range of -40°C to +85°C and features a maximum input current of 60µA. Packaged in an 8-SOIC surface-mount case, it dissipates up to 471mW. This component serves as a specialized power management IC for display drivers.

Power Management - Specialized Feature Summary

• Digitally adjustable output voltage scaling for LCD bias generation
• Integrated VCOM buffer functionality for display stability
• ASIL-B functional safety features for automotive compliance

Power Management - Specialized Applications

• TFT-LCD display driver power supplies
• Automotive infotainment systems requiring ASIL-B compliance
• Portable electronic devices utilizing LCD panels

Power Management - Specialized Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging versus the tube variant. Confirm AEC-Q100 Grade 1 qualification status if automotive application is required. Ensure the SOIC-8 footprint matches the design layout. Check RoHS compliance documentation for environmental regulations. Validate that the digital interface requirements align with the host controller specifications.

Power Management - Specialized Selection Notes

Select this component when a compact, digitally controlled negative bias source is needed for TFT displays. Consider the 2V to 6V input range compatibility with system rails. Evaluate the need for ASIL-B safety features in automotive contexts. Assess the 60µA supply current against battery life requirements. Compare the -100V output capability against panel contrast voltage needs.

Power Management - Specialized Part Context

This part belongs to the MAX749 series of LCD bias supplies from Analog Devices/Maxim Integrated. It complements other display driver controllers by providing dedicated high-voltage generation. The family includes variants like the MAX749CSA+ for different temperature grades. It addresses the power management needs of portable and automotive display systems.

Power Management - Specialized Replacement Considerations

Public confirmed substitute: MAX749ESA+ (Tube package). Verify pinout compatibility between reel and tube versions. Ensure thermal performance remains within limits for the SOIC-8 package.