MAX3430MSA/PR3+

Description：INTEGRATED CIRCUIT
Mfr：Analog Devices Inc./Maxim Integrated

SKU:463df8b3b084 Category: Drivers, Receivers, Transceivers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：INTEGRATED CIRCUIT
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk
Series：-
Type：-
Protocol：-
Number of Drivers/Receivers：-
Duplex：-
Data Rate：-
Voltage - Supply：-
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Supplier Device Package：-
Receiver Hysteresis：-
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MAX3430MSA/PR3+

Overview

The MAX3430MSA/PR3+ is a +3.3V RS-485 transceiver featuring ±80V fault protection on driver outputs and receiver inputs. It supports data rates up to 250kbps with internal slew-rate limiting to minimize EMI. The device incorporates true fail-safe circuitry, ensuring a logic-high receiver output when inputs are open or shorted. Hot-swap capability on the DE pin prevents false transitions during board insertion. Electrical specifications include a supply current of 3.5mA typical, shutdown current of 200µA maximum, and ±12kV ESD protection on A/B pins.

Feature Summary

±80V Fault Protection
True Fail-Safe Inputs
Hot-Swap Input Structure

Applications

RS-422/RS-485 Communications
Industrial-Control Local Area Networks
Profibus Applications

Procurement Notes

Verify the specific suffix PR3+ against official manufacturer documentation to confirm tape-and-reel packaging and any distinct manufacturing lot attributes. Ensure the component source matches Analog Devices Inc./Maxim Integrated standards for industrial reliability.

Selection Notes

Select this component for systems requiring robust bus protection against high-voltage faults without external components. The 1/4-unit-load receiver impedance allows connecting up to 128 devices on a single bus, making it suitable for dense network topologies.

Part Context

This part belongs to the MAX3430 series of fault-protected RS-485 transceivers. It is designed for harsh industrial environments where standard RS-485 devices might fail due to voltage transients exceeding the -7V to +12V common-mode range.

Replacement Considerations

Direct replacements include MAX3430ESA and MAX3430EPA. Verify package compatibility (SOIC-8 vs PDIP-8) and temperature range (-40°C to +85°C) before substitution.