MAX253EPA

Power Management - Specialized Overview

The MAX253EPA+ is a monolithic oscillator and power driver designed to provide isolated power for RS-485 or RS-232 data interfaces. It drives a center-tapped transformer primary from a 3.3V or 5V DC supply. Key electrical parameters include a supply voltage range of 2.5V to 6V, an output current of 1A, and an operating supply current of 450µA. The device operates within a temperature range of -40°C to +85°C, features non-inverting configuration, and dissipates up to 727mW. It is housed in an 8-PDIP package.

Power Management - Specialized Feature Summary

• Provides isolated power for RS-485 and RS-232 interfaces via transformer drive
• Integrates oscillator and power driver functions in a single monolithic device
• Operates directly from standard 3.3V or 5V DC power supplies

Power Management - Specialized Applications

• Isolated RS-485 communication interface power supply
• Isolated RS-232 communication interface power supply
• Transformer-driven isolated DC-DC conversion for serial data links

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status as indicated on official documentation. Check for obsolescence notices, as this part may be discontinued. Ensure the PDIP-8 package matches your PCB footprint requirements before ordering.

Power Management - Specialized Selection Notes

Select this component when designing isolated serial communication systems requiring integrated oscillator and driver functionality. It is suitable for applications needing isolation between logic and transformer primary sides. Consider thermal dissipation limits and supply voltage compatibility with your system's 3.3V or 5V rails during design integration.

Power Management - Specialized Part Context

The MAX253EPA+ belongs to the MAX253 series of transformer drivers manufactured by Analog Devices Inc./Maxim Integrated. It serves as a specialized solution for generating isolated power in industrial communication standards. The PDIP-8 variant offers through-hole mounting options for prototyping or specific mechanical constraints.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices official resources for current lifecycle status and potential replacements.