MAX3443EAPA

Overview

The MAX3443EAPA is a half-duplex RS-485 and J1708 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating current of 10 mA. The device supports data rates up to 10 Mbps and features ±15 kV ESD protection and ±60V fault protection on bus lines. It includes one driver and one receiver in an 8-pin PDIP package. The industrial temperature grade version functions between -40°C and +125°C.

Feature Summary

• Integrated ±60V fault protection for signal faults on communication bus lines
• Fail-safe receiver design ensures a high logic state when the bus is idle or open
• Compliant with J1708 standards for heavy-duty vehicle networks

Applications

• Industrial fieldbus systems requiring robust fault tolerance
• J1708 compliant heavy-duty vehicle communication networks
• RS-485 multi-drop serial communication buses

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm the exact temperature rating and packaging configuration. Ensure the component matches the required interface standard and electrical specifications for the target application before integration.

Selection Notes

Select this component for applications requiring high-speed 10 Mbps transmission alongside significant overvoltage tolerance. Compare the PDIP package constraints against available PCB space and verify that the 5V supply rail aligns with the system power architecture.

Part Context

This part belongs to the MAX344x series of fault-protected transceivers. It shares functional similarities with other members like the MAX3440E and MAX3443E, differing primarily in package type and specific thermal ratings defined by the suffix codes.

Replacement Considerations

Direct replacements include MAX3443ECSA+ and MAX3443EESA+. Verify pinout compatibility and ensure the substitute package meets the mechanical requirements of the existing design.