Maxim Integrated MAX33012E CAN Transceiver
+5V, 5Mbps with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±45kV ESD Protection
The Maxim Integrated MAX33011E is part of a +5V CAN transceiver family with integrated protection for industrial applications. The MAX33012E is equipped with extended ±65V fault protection on the CAN bus for applications where overvoltage protection is required.
The MAX33011E Control Area Network transceiver family also incorporates high ±45kV ESD HBM protection and an input common mode range (CMR) of ±25V, exceeding ISO11898 specification of -2V to +7V, and is best suited for applications where ground planes from different systems are shifting relative to each other.
The MAX33011E transceiver family incorporates a fault detection feature where it monitors the CANH and CANL line for faults like overcurrent, overvoltage, and transmission failure. When a fault is detected, the FAULT pin goes high, which triggers an external interrupt with the local CAN controller, and the driver and receiver lines are placed in recessive mode. The system clock then drives the TXD pin and a fault code is transmitted through the RXD line back to the controller. When the specific fault code is transmitted and the system is programmed to alert local service personnel, they are able to troubleshoot and debug the problem quicker, providing valuable diagnostics and decreased equipment downtime. In addition, the family features a variety of options to address common CAN application requirements; low-current standby mode, slow slew rate for improved EMI performance, silent-mode to disable the transmitter, low level translation to interface with low voltage controllers, and loopback mode for remote self diagnostics.
The MAX33011E (and MAX33012E) are in standard 8-pin SOIC package and the MAX33014E and MAX33015E are in a 10-pin TDFN-EP package. The family of devices operate over the -40°C to +125°C temperature range.
MAX33011E Block Diagram