MAX3188EEUT+T

Overview

The MAX3188EEUT+T is a single RS-232 transmitter manufactured by Analog Devices Inc./Maxim Integrated, housed in a SOT23-6 package. It operates on dual supplies ranging from ±4.5V to ±6V and consumes 150µA of supply current during normal operation. The device guarantees data transmission up to 250kbps with worst-case loads of 3kΩ in parallel with 1000pF. A shutdown input reduces the supply current to 1µA and forces the transmitter output into a high-impedance state. The component provides enhanced ESD protection on the TOUT pin, rated at ±15kV per the Human Body Model, ±8kV via IEC 1000-4-2 Contact Discharge, and ±15kV via IEC 1000-4-2 Air-Gap Discharge.

Feature Summary

• Integrated ESD protection on the transmitter output pin meeting international standards
• Low-power architecture with active shutdown mode reducing current consumption to 1µA
• Space-efficient design utilizing a compact 6-pin SOT23 package

Applications

• Diagnostic Ports
• Telecommunications
• Networking Equipment
• Set-Top Boxes
• Hand-Held Equipment

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm temperature range and packaging details. Ensure compatibility with existing PCB footprints for the SOT23-6 package. Confirm that the required power supply rails match the specified ±4.5V to ±6V operating voltage range before finalizing procurement.

Selection Notes

Select this component when space constraints require a minimal footprint for RS-232 communication. It is suitable for applications needing only signal transmission without integrated reception capabilities. Consider the low quiescent current and shutdown functionality for battery-operated devices requiring extended standby periods.

Part Context

This part belongs to the MAX3188E/MAX3189E family of single RS-232 transmitters designed for cost-constrained and space-limited environments. While the MAX3189E variant supports higher data rates up to 1Mbps, the MAX3188E variant is specifically optimized for guaranteed performance up to 250kbps.

Replacement Considerations

The MAX3189EEUT+T serves as a functional substitute within the same series, offering identical packaging and features but supporting data rates up to 1Mbps instead of 250kbps.