MAX749CSA

Power Management - Specialized Overview

The MAX749CSA is a digitally adjustable LCD bias supply from Analog Devices Inc./Maxim Integrated, designed for professional power management applications. It generates negative LCD-bias contrast voltages from input supplies ranging from 2V to 6V. The device features a full-scale output voltage scalable to -100V or greater, which is digitally adjustable in 64 equal steps. Operating within a temperature range of 0°C to 70°C, it draws a supply current of 60µA and is housed in an SOIC-8 surface-mount package.

Power Management - Specialized Feature Summary

• Digitally adjustable LCD bias generation with 64 discrete output steps
• Negative voltage generation capability scaling to -100V or greater
• Low quiescent supply current consumption of 60µA
• Compatible with standard 2V to 6V input voltage ranges

Power Management - Specialized Applications

• LCD display biasing
• TFT panel power management
• Portable electronic devices requiring low-power contrast control

Power Management - Specialized Procurement Notes

Verify component status carefully as the MAX749CSA may be listed as obsolete in certain distributor catalogs. Confirm availability through authorized channels or check for active equivalents like the MAX749CSA+T. Ensure the specific suffix matches your packaging requirements and that the manufacturer documentation confirms current production status before finalizing procurement plans.

Power Management - Specialized Selection Notes

Select this component when designing systems requiring precise digital control over LCD contrast voltages. It is suitable for applications needing a compact solution for generating high negative bias voltages from low-voltage logic supplies. Consider the SOIC-8 package constraints and the specific operating temperature range of 0°C to 70°C during thermal design and layout planning.

Power Management - Specialized Part Context

This part belongs to the MAX749 series of specialized PMICs focused on display driver support. It serves as a dedicated bias generator for liquid crystal displays, distinguishing itself from general-purpose DC/DC converters by its specific focus on digital adjustability and negative voltage generation for contrast control in display modules.

Power Management - Specialized Replacement Considerations

The MAX749CSA+T is an active variant of this family. Verify if the tape-and-reel packaging of the +T suffix meets your assembly needs compared to the tube packaging of the CSA variant. Cross-reference with other Maxim LCD bias supplies if pin compatibility or specific voltage ranges differ.