60V Fault-Protected 10Mbps Fail-Safe RS-485 Transceiver with 15kV ESD Protection MAX3443EASA+

±60V Fault-Protected, 10Mbps, Fail-Safe RS-485 Transceiver

with ±15kV ESD Protection

General Description

The MAX3443E fault-protected RS-485/RS-422 transceiver features ±60V protection from signal faults on communication bus lines. Each device contains one differential line driver with three-state output, and one differential line receiver with three-state input. The 1/4-unit-load receiver input impedance allows up to 128 transceivers on a single bus. The device operates from a 5V supply at data rates up to 10Mbps. True fail-safe inputs guarantee a logic-high receiver output when the receiver inputs are open, shorted, or connected to an idle data line.

Hot-swap circuitry eliminates false transitions on the data cable during circuit initialization or connection to a live backplane. Short-circuit current limiting and thermal shutdown circuitry protect the driver against excessive power dissipation, and integrated ±15kV ESD protection eliminates costly external protection devices.

The MAX3443E is available in 8-pin SO and PDIP packages, and is specified over commercial, industrial, and automotive temperature ranges.

Applications

RS-422/RS-485 Communications

Industrial Networks

Telecommunication Systems

Automotive Applications

HVAC Controls

Features

♦ ±60V Fault Protection

♦ ±15kV ESD Protection

♦ Guaranteed 10Mbps Data Rate

♦ Allows Up to 128 Transceivers on the Bus

♦ -7V to +12V Common-Mode Input Range

♦ True Fail-Safe Receiver Inputs

♦ Hot-Swap Inputs for Telecom Applications

♦ Automotive Temperature Range (-40°C to +125°C)

♦ Industry-Standard Pinout

Pin Configuration and Typical Operating Circuit

ABSOLUTE MAXIMUM RATINGS

All Voltages Referenced with Respect to GND

VCC ........................................................................................+7V

RE, DE, DI...................................................-0.3V to (VCC + 0.3V)

A, B (Note 1) ........................................................................±60V

RO ..............................................................-0.3V to (VCC + 0.3V)

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW

8-Pin PDIP (derate 9.09mW/°C above +70°C).............727mW

Operating Temperature Ranges

MAX3443EC_ _ ..................................................0°C to +70°C

MAX3443EE_ _ ...............................................-40°C to +85°C

MAX3443EA_ _ .............................................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Short-Circuit Duration (RO, A, B) ...............................Continuous

Lead Temperature (soldering, 10s) .................................+300°C

Note 1: A, B must be terminated with 54Ω or 100Ω to guarantee ±60V fault protection.

CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electronic components that are hard to find and even obsolete. We have taken pride in our innovation, reliability and service, especially in the semiconductor marketplace.
Our distribution brands include XILINX，ALTERA，ATMEL, INFINEON, ST,SAMSUNG，TEXAS INSTRUMENTS，ON，TOSHIBA，，MICROCHIP，CYPRESS，FREESCALE，etc. We distributes over 200,000 products ranging from semiconductors to resistors, capacitors, diodes, inductors, connectors, transistors, sensors and so on.
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