MAX253ESA+T

Power Management - Specialized Overview

The MAX253ESA+T 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 5V or 3.3V DC supply. Key electrical parameters include an output current of 1A, a supply voltage range of 2.5V to 6V, and an operating supply current of 450uA. The device operates within a temperature range of -40°C to +85°C and features non-inverting configuration in an SOIC-8 package.

Power Management - Specialized Feature Summary

• Integrates oscillator and half-bridge driver functions for primary-side transformer excitation
• Provides galvanic isolation for serial communication interfaces such as RS-485 and RS-232
• Operates directly from standard 3.3V or 5V logic-level power supplies

Power Management - Specialized Applications

• Isolated RS-485 interface power supply
• Isolated RS-232 interface power supply
• Primary-side drive for isolated DC-DC converters

Power Management - Specialized Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm exact packaging and temperature grade specifications. Ensure compatibility with the target transformer's center-tap requirements and input voltage levels. Cross-reference the component marking with the datasheet pinout to prevent installation errors during assembly.

Power Management - Specialized Selection Notes

Select this component when a compact solution is required to generate isolated power for serial communication transceivers. It is suitable for designs needing a single-chip oscillator and driver combination. Consider the SOIC-8 package size and thermal dissipation capabilities relative to the application's power budget and ambient temperature constraints.

Power Management - Specialized Part Context

This part belongs to the MAX253 family of transformer drivers manufactured by Analog Devices Inc./Maxim Integrated. The family focuses on providing integrated solutions for isolated power generation in industrial and communication applications. The MAX253 specifically targets low-power isolated interface scenarios requiring minimal external components.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.