MAX14880AWE+

Drivers, Receivers, Transceivers Overview

The MAX14880AWE+ is a high-speed CAN transceiver from the Analog Devices / Maxim Integrated MAX14878–MAX14880 family, designed to improve communication safety by integrating galvanic isolation between the CAN protocol controller side and the physical network bus. It provides up to 5000VRMS (60s) of galvanic isolation in an 8mm wide-body 16-pin SOIC package. The device supports data rates up to 1Mbps and features an integrated standby input (STB) on the isolated side to disable the driver and place the transceiver in low-power standby mode. It includes robust protection with ±25V receiver input common-mode range, ±54V fault tolerance, and ±15kV ESD protection on the bus side.

Drivers, Receivers, Transceivers Feature Summary

• Integrated galvanic isolation barrier breaks ground loops and reduces noise where large differences in ground potential exist between ports.
• Standby input allows disabling the driver and placing the transceiver into a low-power standby mode for energy efficiency.
• Wide receiver input common-mode range and fault protection ensure robust communication under extreme electrical conditions.
• Dominant timeout protection prevents erroneous controllers from clamping the bus to a dominant level continuously.

Drivers, Receivers, Transceivers Applications

• Industrial Controls
• HVAC Systems
• Building Automation
• Switching Gear

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific part number suffix against the manufacturer's ordering information to confirm isolation voltage and package type. Ensure that the design accounts for the separate supply voltages required for the controller side (VDDA) and the CAN bus side (VDDB). Confirm compliance with relevant safety regulatory approvals if basic insulation is required for the application.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX14880AWE+ when 5000VRMS isolation is required alongside a standby control feature. Compare with the MAX14878AWE+ if standby functionality is not needed, or the MAX14879AWE+ if lower 2750VRMS isolation suffices. Consider the 16-pin SOIC footprint constraints and the need for separate power domains for the A-side and B-side circuits during PCB layout.

Drivers, Receivers, Transceivers Part Context

The MAX14880AWE+ belongs to the MAX14878–MAX14880 family of isolated CAN transceivers. This family differentiates itself through varying isolation ratings (2.75kV, 3.5kV, 5kV) and the presence or absence of a standby pin. The MAX14880 specifically targets applications requiring the highest isolation rating within this series while maintaining compact surface-mount packaging.

Drivers, Receivers, Transceivers Replacement Considerations

Direct parametric equivalents within the same family include the MAX14878AWE+ (same isolation, no standby) and the MAX14879AWE+ (lower isolation, has standby). Verify that the replacement maintains the required 5000VRMS isolation rating and 16-pin SOIC package dimensions.

Drivers, Receivers, Transceivers FAQ

What is the maximum isolation voltage provided by the MAX14880AWE+?

The MAX14880AWE+ provides up to 5000VRMS (60s) of galvanic isolation between the controller side (GNDA) and the CAN bus side (GNDB).

How does the dominant timeout feature protect the CAN bus?

The dominant timeout feature releases the bus to a recessive state if the TXD input remains low for longer than the specified timeout period (tDOM), preventing erroneous controllers from clamping the bus permanently.

What are the supply voltage requirements for the MAX14880AWE+?

The controller side (VDDA) operates from 1.71V to 5.5V, while the CAN bus side (VDDB) requires a supply voltage between 4.5V and 5.5V.