MAX3051EKA+

Overview

The MAX3051EKA+T is a +3.3V, low-supply-current CAN transceiver manufactured by Analog Devices / Maxim Integrated. It interfaces between the CAN protocol controller and physical bus lines, supporting data rates up to 1Mbps in high-speed mode. The device operates from a single +3.3V supply with a typical dominant state current of 35mA and recessive state current of 2µA. It features a wide input common-mode range from -7V to +12V and includes four operating modes: high-speed, slope-control, standby, and shutdown. The component is housed in an 8-pin SOT-23 package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Four distinct operating modes including high-speed, slope-control, standby, and shutdown for optimized performance and power consumption.
• Wide common-mode range exceeding ISO 11898 specifications, suitable for nonautomotive harsh environments.
• Programmable slew-rate limiting in slope-control mode to reduce EMI effects and allow use of unshielded cables.
• Robust protection features including ±12kV human body model ESD protection, thermal shutdown, and current limiting.

Applications

• Printers
• JetLink systems
• Industrial control and networks
• Telecom backplane
• Consumer applications

Procurement Notes

Verify the specific ordering suffix to confirm the package type and reel configuration. The 'EKA' designation indicates an 8-pin SOT-23 package. Ensure the '+T' suffix matches the required tape-and-reel quantity for production integration. Confirm RoHS compliance status based on the '+' indicator in the part number before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a low-power CAN transceiver that does not need automotive-grade fault protection. The SOT-23 package is ideal for space-constrained designs. Consider the slope-control mode if EMI reduction is critical for unshielded cabling. Verify that the system voltage aligns with the +3.3V single-supply requirement and that the operating temperature range meets environmental needs.

Part Context

The MAX3051 series provides a cost-effective solution for CAN communication in industrial and consumer electronics. Unlike automotive-specific transceivers, it focuses on low power consumption and flexibility through multiple operating modes. The EKA variant specifically utilizes the compact SOT-23 footprint, making it suitable for dense PCB layouts where board space is limited compared to larger SO packages.

Replacement Considerations

Direct replacements include other MAX3051 variants such as MAX3051ESA+T for an 8-pin SO package. Cross-family alternatives may require verification of pin compatibility and electrical characteristics. Ensure any substitute supports the same +3.3V supply and CAN protocol requirements without altering system functionality.