MAX3051ESA+

Overview

The MAX3051ESA+ is a +3.3V, low-supply-current CAN transceiver designed for nonautomotive applications. It operates from a single supply voltage ranging from 3.14V to 3.47V and supports data rates up to 1Mbps in high-speed mode. The device features four operating modes: high-speed, slope-control (up to 500kbps), standby, and shutdown. It provides a wide common-mode input range of -7V to +12V, exceeding standard automotive specifications. Electrical characteristics include a dominant state supply current of 35µA typical, recessive state current of 2µA typical, and shutdown current below 1µA. The component is housed in an 8-pin SO package and functions within an extended temperature range of -40°C to +85°C.

Feature Summary

• Supports four distinct operational modes including high-speed transmission, programmable slew-rate limiting for EMI reduction, low-current standby, and deep shutdown.
• Features a robust common-mode input range extending from -7V to +12V, providing enhanced tolerance for harsh environments beyond standard ISO 11898 limits.
• Integrates thermal shutdown protection that activates at junction temperatures exceeding +160°C, ensuring system reliability under fault conditions.

Applications

• Industrial control systems and networks
• Telecom backplane interfaces
• Printer JetLink connections
• Consumer applications requiring CAN bus communication

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape-and-reel status. Confirm RoHS compliance through the designated lead-free indicator in the part number. Ensure the application environment remains within the specified -40°C to +85°C temperature range. Validate power supply stability between 3.14V and 3.47V. Check for any regional distribution restrictions or obsolescence notices prior to finalizing procurement plans.

Selection Notes

Select this component for designs requiring a single +3.3V supply without charge pumps. Choose the slope-control mode if EMI mitigation is required for unshielded cables. Opt for standby or shutdown modes to minimize power consumption during idle periods. Ensure the application does not demand the stringent fault protection mandated by automotive ISO 11898 standards. Verify compatibility with the 8-pin SO package footprint.

Part Context

The MAX3051 belongs to Maxim Integrated's family of low-power CAN transceivers. It serves as a physical layer interface between CAN controllers and bus lines. Unlike automotive-grade variants, it prioritizes low power consumption and flexible slew-rate control over extreme fault tolerance. It complements other RS-485/RS-422 transceivers like the MAX3485 by addressing Controller Area Network protocols specifically.

Replacement Considerations

Direct functional substitutes within the same package and specification set should be verified against the official cross-reference list. Ensure replacement parts maintain the -7V to +12V common-mode range and 1Mbps data rate capability. Verify pinout compatibility for the 8-pin SO package before implementation.