MAX13051 80V Fault-Protected Can Transceiver with Autobaud General Description Features The MAX13051 80V fault-protected CAN transceiver Fully Compatible with the ISO 11898 Standard with autobaud is ideal for device net and other industri- Autobaud Mode al network applications where overvoltage protection is required. The MAX13051 provides a link between the Short-Circuit Protection CAN protocol controller and the physical wires of the High-Speed Operation Up to 1Mbps bus lines in a control area network (CAN). Slope-Control Mode The MAX13051 features three different modes of opera- tion: high speed, slope control, and standby. High- Low-Current Standby Mode speed mode allows data rates up to 1Mbps. The Thermal Shutdown slope-control mode can be used to program the slew rate of the transmitter for data rates of up to 500kbps, Transmit Data Dominant Timeout reducing the effects of EMI and allowing the use of 6kV Human Body Model ESD Protection unshielded-twisted or parallel cable. In standby mode, the transmitter shuts off and a low-power receiver moni- Greater than 12V Common-Mode Range tors the bus, waiting for a wake-up signal. The MAX13051 provides a transmitter data (TXD) domi- nant timeout function that prevents erroneous CAN con- trollers from clamping the bus to a dominant level if the TXD input is held low for greater than 1ms. The Ordering Information MAX13051 also provides an autobaud feature allowing the microcontroller to compute the incoming baud rate PART TEMP RANGE PIN-PACKAGE without destroying CAN protocol communication. The MAX13051ESA+ -40C to +85C 8 SO MAX13051 input common-mode range is greater than MAX13051ASA+ -40C to +125C 8 SO 12V, exceeding the ISO 11898 specification of -2V to +7V, and features 6kV Human Body Model protection, +Denotes a lead(Pb)-free/RoHS-compliant package. making these devices ideal for harsh environments. The MAX13051 is available in an 8-pin SO package and is specified from the -40C to +85C and -40C to +125C temperature ranges. Applications Industrial Networks Device Net Nodes Typical Operating Circuit Telecom V CC 0.1F HVAC 120 V CANH CC Pin Configuration CAN CONTROLLER TOP VIEW MAX13051 + TX0 TXD CANL TXD 1 8 RS 120 RX0 RXD GND 2 7 CANH MAX13051 I/O V 3 6 CANL AUTOBAUD CC RXD 4 5 AUTOBAUD I/O RS GND GND 16k TO 200k SO For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. 19-3500 Rev 1 10/12MAX13051 80V Fault-Protected Can Transceiver with Autobaud ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Operating Temperature Range .........................-40C to +125C V -0.3V to +6V Junction Temperature......................................................+150C CC ....................................................................................... RS...............................................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C CC TXD, RXD, AUTOBAUD............................................-0.3V to +6V Lead Temperature (soldering, 10s) ................................+300C CANH, CANL .......................................................................80V Soldering Temperature (reflow) ......................................+260C Continuous Power Dissipation (T = +70C) A 8-Pin SO (derate 5.9mW/C above +70C) .................470mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (V = +5V 5%, T = T to T , unless otherwise noted. Typical values are at V = +5V, T = +25C.) (Note 1) CC A MIN MAX CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Dominant, R = 60 72 L Supply Current I mA CC Recessive 15 Standby Current I 25 A STANDBY Thermal-Shutdown Threshold V +165 C TSH Thermal-Shutdown Hysteresis 13 C INPUT LEVELS (TXD, AUTOBAUD) High-Level Input Voltage V 2V IH Low-Level Input Voltage V 0.8 V IL V = V -5 +5 TXD CC High-Level Input Current I A IH V = V +5 +15 AUTOBAUD CC V = GND -300 -100 TXD Low-Level Input Current I A IL V = GND -5 +5 AUTOBAUD Input Capacitance C 10 pF IN CANH, CANL TRANSMITTER Normal mode, V = V , no load 2 3 V TXD CC V , CANH Recessive Bus Voltage V CANL Standby mode, no load -100 +100 mV -76V < V , V < +76V 3 I , CANH CANL CANH Recessive Output Current mA I CANL -32V < V , V < +32V -2.5 +2.5 CANH CANL CANH Output Voltage V V = 0V, dominant 3.0 4.5 V CANH TXD CANL Output Voltage V V = 0V, dominant 0.50 1.75 V CANL TXD Matching Between CANH and CANL V = 0V, dominant, T = +25C TXD A DOM -100 +150 mV Output Voltage (V + V ) -V CANH CANL CC Dominant, V = 0V, 45 < R < 60 1.5 3.0 V TXD L Differential Output V DIFF (V - V ) CANH CANL Recessive, V = V , no load -50 +50 mV TXD CC CANH Short-Circuit Current I V = 0V, V = 0V -100 -70 -45 mA CANHSC CANH TXD V = 5V, V = 0V 40 60 90 CANL TXD CANL Short-Circuit Current I V = 40V, V = 0V 40 60 90 mA CANLSC CANL TXD V = 76V, V = 0V 63 CANL TXD Maxim Integrated 2