Simplifies Design and Reduces Board Space by Eliminating External Components Required for Overvoltage Protection Up to ±80V, Such as TVSs and PTCs
The MAX13442E/MAX13444E are fault-protected RS-485 and J1708 transceivers that feature ±80V protection from signal faults on communication bus lines. The MAX13442E/MAX13444E feature a reduced slew-rate driver that minimizes EMI and reflections, allowing error-free transmission up to 250kbps. The MAX13443E driver can transmit up to 10Mbps. The high-speed MAX13443E 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 MAX13442E/MAX13443E/MAX13444E are available in an 8-pin SO package and are specified over the automotive temperature range.
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MAX13442E-MAX13444E Data Sheet | MAX13442E-MAX13444E.pdf |
Part Number | Tx/Rx | Duplex | VSUPPLY (V) | Fault Protect. (±V) | ICC (mA) | Data Rate (kbps) | ESD Protect. (±kV) | Tx EN | Rx EN | ICC (Shutdn.) (µA) | Rx/Tx on Bus | Rx Failsafe w/ Inputs | Slew Rate Limiting | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
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typ | min | typ | See Notes | |||||||||||||
MAX13442E | 1Tx + 1Rx | Half | 5 | 80 | 16 | 250 | 15 | Yes | Yes | 0.001 | 128 | Open or Shorted | Yes | -40 to +125 | SOIC(N)/8 | $3.03 @1k |
MAX13443E | 60 | 5 | 10000 | SOIC(N)/8 | ||||||||||||
MAX13444E | 80 | 10 | 250 | SOIC(N)/8 | ||||||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX13444EASA | No Longer Available | MAX13444EASA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +125°C | No |
MAX13444EASA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +125°C | Lead Free | |
MAX13444EASA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +125°C | Lead Free | |
MAX13444EASA-T | No Longer Available | MAX13444EASA+T | N.SO;8 pin | -40°C to +125°C | See data sheet |
MAX13444EASA/V+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +125°C | Lead Free | |
MAX13444EASA/V+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +125°C | Lead Free |