The MAX13051ESA+T is a ±80V fault-protected CAN transceiver, ideal for device-net and other industrial-network applications where overvoltage protection is required. It forms the interface between a CAN protocol controller and the physical wires of a control-area network (CAN bus), fully compatible with ISO 11898.

It features three modes of operation: high speed, slope control and standby. The high-speed mode allows data rates up to 1Mbps; the slope-control mode reduces EMI by programming the rise/slew rate of the transmitter (for data rates of up to 500kbps); and a low-current standby mode lets the transmitter shut down while a low-power receiver monitors the bus, waiting for a wake-up signal. An Autobaud mode further eases network bring-up.

The transmitter data (TXD) dominant timeout prevents erroneous CAN controllers from clamping the bus to a dominant level if TXD is held low for too long. Robust protection includes ±80V fault protection on the bus pins, ±6kV Human Body Model ESD, a ±12V common-mode range, short-circuit protection and thermal shutdown - making the MAX13051 well suited to harsh industrial environments in an 8-pin SO.

Note: Refer to the official Maxim MAX13051 datasheet for full electrical parameters. Subject to change without notice; verify all parameters before final design.

The MAX13051ESA+T is supplied in the 8-pin SO (narrow small-outline) package, indicated by the SA suffix. The compact SO fits the node boards of industrial CAN and DeviceNet networks; the ASA grade extends the range to -40°C to +125°C.

The "+" suffix indicates lead-free, RoHS-compliant finish and the "T" suffix tape-and-reel packing. Standard 8-lead SO land patterns and reflow profiles apply; place the device near the bus connector and add proper CAN bus termination. The diagram below shows the typical operating circuit.

The MAX13051 uses an 8-pin SO pinout (top view):

• Pin 1 - TXD: Transmit data input (from CAN controller).
• Pin 2 - GND: Ground. Pin 3 - VCC: +5V supply.
• Pin 4 - RXD: Receive data output (to CAN controller).
• Pin 5 - AUTOBAUD: Autobaud-mode control.
• Pin 6 - CANL / Pin 7 - CANH: CAN bus low / high lines (±80V fault-protected).
• Pin 8 - RS: Mode-select input (slope control / standby).

Connect TXD/RXD to the CAN controller, CANH/CANL to the bus with proper termination, and RS to select high-speed, slope-control or standby. Confirm the exact pin assignment against the datasheet image below before layout.

The following parts are listed for reference. Verify fault protection, data rate, modes and package before substituting.

Maxim Integrated, now part of Analog Devices (NASDAQ: ADI), is a leading supplier of analog and mixed-signal semiconductors, well known for rugged interface and CAN/RS-485 transceivers. The MAX13051 fault-protected CAN transceiver is widely used in industrial and DeviceNet networks needing high robustness.

Maxim/ADI provides complete datasheets, application notes and long-term supply, with authorized distribution and technical support across China for both prototype and volume programs.