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.
The MAX13442E, MAX13443E and MAX13444E are fault‑protected RS‑485 and J1708 transceivers offering ±80 V (±60 V for MAX13443E) signal‑fault protection, ±15 kV ESD protection, and true fail‑safe receiver inputs. They operate from a 5 V supply, are available in an 8‑pin SO package, and meet automotive temperature specifications.
These devices support up to 128 transceivers on a single bus, feature reduced slew‑rate drivers to minimize EMI and reflections, and provide data rates up to 250 kbps (MAX13442E/MAX13444E) or 10 Mbps (MAX13443E). Typical applications include automotive networks, industrial RS‑485 systems, and SAE J1708 communication.
| Data Rate (MAX13442E/MAX13444E) | 0.25 Mbps |
|---|---|
| Data Rate (MAX13443E) | 10 Mbps |
| ESD Protection | ±15 kV |
| Operating Temperature Range | -40 °C to +125 °C |
| Package | 8‑pin SO |
| Supply Voltage | 5 V |
| Maximum Bus Load | 128 transceivers |
The MAX13443E can transmit data at up to 10 Mbps.
Up to 128 transceivers can be connected in parallel on one communication line.
They operate from –40 °C to +125 °C.
The devices are protected against ±15 kV ESD events.