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Maxim MAX13444EASA Fail-Safe RS-485/J1708 Transceivers

Product Description Of MAX13444EASA

MAX13444EASA is fault-protected RS-485 and J1708 transceivers that feature ±80V protection from signal faults on communication bus lines. The MAX13444EASA feature a reduced slew-rate driver that minimizes EMI and reflections, allowing error-free transmission up to 250kbps. The MAX13444EASA driver can transmit up to 10Mbps. The high-speed MAX13444EASA RS-485 tranceiver features ±60V protection from signal faults on communication bus lines. These transceivers feature foldback current limit. 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 devices operate from a 5V supply. 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 bus 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 on-chip ±15kV ESD protection eliminates costly external protection devices.

The MAX13444EASA is available in an 8-pin SO package and are specified over the automotive temperature range.

Specifications Of MAX13444EASA

Data Rate:250 kb/s

Number of Drivers:1 Driver

Number of Receivers:1 Receiver

Duplex:Half Duplex

Supply Voltage - Max:5.25 V

Supply Voltage - Min:4.75 V

Operating Supply Current:30 mA

Minimum Operating Temperature:- 40 C

Maximum Operating Temperature:+ 125 C

ESD Protection:15 kV

Feature Of MAX13444EASA

±15kV ESD Protection

±80V Fault Protection

Guaranteed 10Mbps Data Rate

Hot-Swappable for Telecom Applications

True Fail-Safe Receiver Inputs

Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission (MAX13442E/MAX13444E)

Allow Up to 128 Transceivers on the Bus

-7V to +12V Common-Mode Input Range

±6mA FoldBack Current Limit

Industry-Standard Pinout

Applications Of MAX13444EASA

Automotive Applications

HVAC Controls

Industrial Networks

RS-422/RS-485 Communications

Telecommunications Systems

Truck and Trailer Applications