MAX3232EIDBG4

Overview

The MAX3232EIDBG4 is an automotive-grade RS-232 transceiver manufactured by Texas Instruments. It integrates two line drivers, two receivers, and a dual charge-pump circuit within a 16-pin TSSOP package. The device operates on a single 3V to 5.5V supply and supports data rates up to 250kbit/s with a maximum slew rate of 30V/μs. It provides ±15kV IEC ESD protection on serial-port connection pins, including ground. The typical standby current is 300μA, requiring four external 0.1μF capacitors for the charge pump.

Feature Summary

• Automotive qualification meeting AEC-Q100 standards
• Integrated dual charge pump for single-supply operation
• High ESD protection rating on all serial port pins

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems
• Battery-powered portable devices

Procurement Notes

Verify the specific ordering suffix against the official TI Package Option Addendum to confirm the exact package type, lead finish, and moisture sensitivity level. Confirm that the component status is listed as active production rather than preproduction or obsolete. Ensure the supplier provides traceability documentation required for automotive assembly processes.

Selection Notes

Select this component when automotive reliability certification is mandatory for the RS-232 interface. It serves as a pin-compatible alternative to standard catalog versions like the MAX3232E. Consider the SNx5C3232 if higher data rates exceeding 250kbit/s are required while maintaining the same physical footprint.

Part Context

This part belongs to the MAX3232E-Q1 family, which is specifically designed for automotive environments. It shares the core electrical architecture with the commercial MAX3232E but undergoes stricter manufacturing controls and testing protocols to satisfy automotive quality requirements.

Replacement Considerations

The SNx5C3232 is a documented high-speed pin-compatible alternative offering 1Mbit/s performance. Standard catalog versions such as the MAX3232E provide identical functionality without automotive qualification.