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MAX3421EEHJT, MAX3421EETJ, MAX3430

Table of contents:
Info of MAX3421EEHJT
Info of MAX3421EETJ
Info of MAX3430

MAX3421EEHJT, MAX3421EETJ, MAX3430 Selling Leads, Datasheet

MFG:360 Package Cooled:MAX D/C:08+/09+

MAX3421EEHJT, MAX3421EETJ, MAX3430 Picture

MAX3421EEHJT, MAX3421EETJ, MAX3430 Datasheet download

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Part Number: MAX3421EEHJT

MFG: 360

Package Cooled: MAX

D/C: 08+/09+

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MAX3430 General Description

The MAX3430 fault-protected RS-485 transceiver features ±80V protection from overvoltage signal faults on communicationm bus lines. Each device contains one driver and one receiver, and the output pins can withstand faults, with respect to ground, of up to ±80V. Even if the faults occur when the transceiver is active, shut down, or powered off, the device will not be damaged. The MAX3430 operates from a 3.3V supply and features a slew-rate-limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing errorfree data transmission at data rates up to 250kbps. The MAX3430 has a 1/4-unit-load receiver input impedance allowing up to 128 transceivers on a single bus and features fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open.

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.

The MAX3430 is available in 8-pin SO and 8-pin PDIP packages, and is specified over commercial and industrial temperature ranges.

MAX3430 Maximum Ratings

(All voltages are referenced to GND.)
V_CC........................................................................................+5V
RE, DE, DI.....................................................-0.3V to (V_CC + 0.3V)
Driver Output Voltage (A, B) (Note 1) ..................................±80V
Receiver Input Voltage (A, B) (Note 1) ................................±80V
RO ...............................................................-0.3V to (V_CC + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW
Operating Temperature Ranges
MAX3430C_ _ .....................................................0°C to +70°C
MAX3430E_ _ ..................................................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +150°C
Lead Temperature (soldering, 10s) ...............................+300°C

MAX3430 Features

±80V Fault Protection
±12kV ESD Protection
+3.3V Operation
Internal Slew-Rate Limiting
250kbps Data Rate
Allows Up to 128 Transceivers on the Bus
-7V to +12V Common-Mode Input Voltage Range
True Fail-Safe Inputs
Hot-Swap Input Structure on DE
Available in 8-Pin SO and PDIP Packages

MAX3430 Typical Application

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

MAX3430 Connection Diagram

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