MAX13444EASA/V+

Drivers, Receivers, Transceivers Overview

The MAX13444EASA/V+ is an automotive-qualified, fault-protected RS-485 and J1708 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply (4.75V to 5.25V) and features ±80V protection on the A and B bus lines against signal faults. The device incorporates a reduced slew-rate driver that minimizes electromagnetic interference (EMI) and reflections, supporting error-free data transmission up to 250kbps. It includes one differential line driver with three-state output and one differential line receiver with three-state input. The receiver's 1/4-unit-load impedance allows for up to 128 transceivers on a single bus. True fail-safe inputs guarantee a logic-high receiver output when inputs are open, shorted, or idle. The component is housed in an 8-pin SO package and is specified over the automotive temperature range of -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• J1708 protocol support with dedicated TXD input for dominant and recessive state control
• Enhanced slew-rate limiting to minimize EMI and reduce cable reflections
• Hot-swap capability on the RE pin to prevent false transitions during board insertion
• True fail-safe receiver inputs ensuring logic-high output under open or shorted conditions

Drivers, Receivers, Transceivers Applications

• Truck and trailer communication systems
• Automotive networks requiring J1708 compliance
• Industrial networks operating in harsh electrical environments
• HVAC controls with high common-mode voltage requirements

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix '/V' confirms automotive qualification status as defined by the manufacturer. Confirm the package type matches the required PCB footprint. Check current availability through authorized distributors as supply levels fluctuate. Ensure the RoHS-compliant '+' designation is included if lead-free components are required for assembly processes.

Drivers, Receivers, Transceivers Selection Notes

Select this component when J1708 protocol support is required alongside RS-485 compatibility. Choose this part over standard RS-485 transceivers if the application involves hot-swappable backplanes or requires protection against ±80V bus faults. Consider the reduced slew rate for applications prioritizing EMI reduction over maximum data throughput speeds exceeding 250kbps.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX13442E/MAX13443E/MAX13444E family of fault-protected transceivers. While sharing similar pinouts and core protection features, the MAX13444E is distinctively configured for J1708 applications with a dedicated TXD input, whereas the MAX13442E and MAX13443E utilize a standard DI input for RS-485/RS-422 signaling. All variants share the same 8-pin SO package and automotive temperature specifications.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: MAX13442EASA/V+, MAX13443EASA/V+. Verify functional equivalence regarding J1708 support and fault protection ratings before substitution.