The MAX14878–MAX14880 family of high-speed transceivers enhance communication and safety by integrating galvanic isolation between the CAN protocol controller side of the device and the physical wires of the network (CAN) bus.
Isolation improves communication by breaking ground loops and reduces noise where large differences in ground potential between ports are. The MAX14879 provides up to 2750VRMS (60s) of galvanic isolation, whereas the MAX14878/MAX14880 provide up to 5000VRMS (60s) of galvanic isolation.
All transceivers operate up to the maximum high-speed CAN data rate of 1Mbps. The MAX14879/MAX14880 feature an integrated standby input (STB) on the isolated side of the transceiver to disable the driver and place the transceiver in a low-power standby mode. The MAX14878 does not include the standby input.
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The MAX14878–MAX14880 transceivers feature integrated protection for robust communication. The receiver input common-mode range is ±25V, exceeding the ISO 11898 specification of -2V to +7V, and it is fault tolerant up to ±54V. Driver outputs/receiver inputs are also protected from ±15kV electrostatic discharge (ESD) to GNDB on the bus side, as specified by the Human Body Model (HBM).
Interfacing with CAN protocol controllers has simplified by the wide 1.71V to 5.5V supply voltage range (VDDA) on the controller side of the device.
This supply voltage sets the interface logic levels between the transceiver and the controller. The supply voltage range for the CAN bus side of the device is 4.5V to 5.5V (VDDB).
The MAX14878–MAX14880 is available in a wide-body 16-pin SOIC package with 8mm of creepage and clearance. These devices operate over the -40°C to +125°C temperature range.
Application areas include:
- Building Automation
- Industrial Controls
- Switching Gear
Evaluation Kit for MAX14878–MAX14880 family is available for ordering using MAX14880EVKIT#