MAX3272AETP+

Overview

The MAX3272AETP+ is a dual RS-232 transceiver designed for portable applications, operating from a single 3.0V to 5.5V supply. It integrates charge pumps that generate the required positive and negative voltages for RS-232 communication without external components. The device features low supply current and supports data rates up to 120kbps. It includes ESD protection exceeding ±15kV on all pins and meets IEC 61000-4-2 standards. The TSSOP-16 package allows for compact board designs while maintaining reliable signal integrity in mobile environments.

Feature Summary

• Integrated charge pump eliminates need for external capacitors
• Single-supply operation compatible with battery-powered systems
• High ESD protection ensures robustness in harsh environments

Applications

• Portable computers and notebooks
• Handheld devices and PDAs
• Industrial handheld terminals

Procurement Notes

Verify the suffix 'TP+' indicates tape-and-reel packaging and lead-free compliance. Confirm the 'A' grade denotes extended temperature range specifications. Ensure the manufacturer designation matches Analog Devices Inc., formerly Maxim Integrated, to avoid counterfeit risks. Cross-reference the full part number with official distributor catalogs for accurate sourcing.

Selection Notes

Select this component when space constraints prohibit external charge pump capacitors. It is suitable for applications requiring moderate data rates under 120kbps. Consider thermal performance within the TSSOP-16 package if ambient temperatures approach upper limits. Verify voltage compatibility with the host system's single supply rail before integration.

Part Context

This device belongs to the MAX32xx family of RS-232 transceivers optimized for portability. Unlike standard drivers requiring multiple external capacitors, it simplifies design by integrating power management. The A-grade variant offers enhanced reliability for industrial use compared to commercial grades.

Replacement Considerations

Check for direct pin-compatible alternatives such as the MAX3232 series if higher data rates are needed. Verify that substitute parts support the same single-supply voltage range and ESD protection levels. Ensure replacement packages match the TSSOP-16 footprint for seamless board updates.