MAX14882AWE+

Drivers, Receivers, Transceivers Overview

The MAX14882AWE+ is a high-speed isolated CAN transceiver in a 16-pin wide SOIC package. It provides 5000VRMS galvanic isolation between the controller-side (VDDA: 3.0V to 5.5V) and bus-side (VDDB: 4.5V to 5.5V). The device supports data rates up to 1Mbps with propagation delays of 80ns (TXD) and 135ns (RXD). It features an integrated transformer driver for power transfer, ±54V fault protection, and ±15kV HBM ESD protection on bus pins. Operating temperature range is -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated galvanic isolation with transformer driver for power transfer across the barrier
• Robust communication via ±54V fault protection and ±25V common-mode receiver range
• Field installation simplification through polarity select input for swapping CANH/CANL functions

Drivers, Receivers, Transceivers Applications

• Building Automation
• Industrial Controls
• HVAC
• Switching Gear

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'AWE+' against the manufacturer's current datasheet to confirm lead-free status and RoHS compliance. Confirm that the required external center-tapped transformer matches the ET product specifications for the intended operating voltage and frequency conditions.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a single-chip solution for both data isolation and bus-side power generation is required. Ensure the application requires a 5000VRMS withstand rating and operates within the specified 3.0V to 5.5V controller supply range. Verify compatibility with the recommended center-tapped transformers for the bus-side LDO or direct supply configuration.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX14882 family of isolated CAN transceivers. It is distinguished by its integrated transformer driver and LDO, which simplify the design by eliminating the need for separate isolated DC-DC converters. The 'W' indicates the Wide SOIC package providing enhanced creepage and clearance distances.

Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include the MAX14882AWE+T for tape-and-reel packaging. Other variants in the family may lack the integrated transformer driver or offer different isolation ratings; verify pinout and electrical characteristics before substitution.

Drivers, Receivers, Transceivers FAQ

How is power transferred to the bus side?

Power is transferred across the isolation barrier using an integrated push-pull transformer driver that drives an external center-tapped transformer connected to TD1 and TD2 pins.

What is the function of the POL pin?

The POL (Polarity Select) input allows software correction of cross-wired bus cables by swapping the functions of the CANH and CANL I/Os.

What happens if TXD remains low for too long?

The transmitter-dominant timeout feature disables the transmitter after approximately 1.4ms to 4.8ms, releasing the bus to a recessive state to prevent erroneous controllers from clamping the bus.