MAX3054/MAX3055/ 80V Fault-Protected/Tolerant CAN Transceiver MAX3056 General Description Features The MAX3054/MAX3055/MAX3056 are interfaces 80V Fault Protection between the protocol controller and the physical wires Low RFI/Excellent EMC Immunity of the bus lines in a controller area network (CAN). The Full Wake-Up Capability During Failure Modes devices provide differential transmit capability and switch to single-mode if certain fault conditions occur. The Bus Failure Management MAX3054/MAX3055/MAX3056 guarantee full wakeup Support Single-Wire Transmission Mode with Ground capability during failure modes. Offset Voltages Up to 1.5V The extended fault-protected voltage range of CANH and Thermally Protected CANL bus lines of 80V. Current-limiting and thermalpro- Do Not Disturb the Bus Line when Unpowered tection circuits protect the transmitter output stage against Low-Current Sleep and Standby Mode with Wake-Up overcurrent faults to prevent destruction of the transmitter Through Bus Lines output stage. The CANH and CANL lines are also protect- ed against electrical transients that may occur in rugged Up to 250kbps Data Rate (MAX3054) environments. Pin and Functionally Compatible with TJA1054 The transceiver provides three low-power modes that can be entered and exited through pins STB and EN. An output INH pin can be used for deactivation of an external Ordering Information voltage regulator. PIN- The MAX3054/MAX3055/MAX3056 are designed to provide PART TEMP RANGE DATA RATE PACKAGE optimal operation for a specified data rate. The MAX3054 is MAX3054ASD+ -40C to +125C 250kbps 14 SO ideal for high data rates of 250kbps. The MAX3055 is used for data rates of 125kbps and the MAX3056 is designed for Slew control MAX3055ASD+ -40C to +125C 14 SO 40kbps applications. For 40kbps and 125kbps versions, a 125kbps built-in slope-control feature allows the use of unshielded Slew control MAX3056ASD+ -40C to +125C 14 SO cables, and receiver input filters guarantee high noise immunity. 40kbps Applications +Lead-free/RoHS-compliant package Industrial HVAC Typical Operating Circuit Pin Configuration V +12V BATT TOP VIEW BATTERY INH 1 14 BATT CAN CONTROLLER +5V TXD 2 13 GND MAX3054 2 3 5 6 4 1 RXD 3 MAX3055 12 CANL TXD RXD STB EN ERR INH MAX3056 10 ERR 4 11 CANH V CC 100nF MAX305 7 13 STB 5 10 V CC WAKE GND EN 6 9 RTL 14 BATT RTH CANH CANL RTL WAKE 7 8 RTH 8 11 12 9 FAULT TO 80V SO CAN BUS 19-2687 Rev 1 9/14MAX3054/MAX3055/ 80V Fault-Protected/Tolerant CAN Transceiver MAX3056 Absolute Maximum Ratings (All Voltages are Referenced to GND) INH Current ......................................................................-0.5mA Supply Voltage (V ) ..............................................-0.3V to +6V Transient Voltage (ISO 7637) ................................ -200V, +200V CC Battery Voltage (V ) ........................................-0.3V to +80V Continuous Power Dissipation (T = +70C) BATT A TXD, RXD, ERR, STB, EN ....................... -0.3V to (V + 0.3V) 14-Pin SO (derate 8.3mW/C above +70C) ...............667mW CC CANH, CANL ..........................................................-80V to +80V Operating Temperature Range ......................... -40C to +125C RTH, RTL...............................................................-0.3V to +80V Junction Temperature ......................................................+150C RTH, RTL Current ..........................................................180mA Storage Temperature Range ............................ -65C to +150C WAKE ....................................................................-0.3V to +80V Lead Temperature (soldering, 10s) .................................+300C INH ........................................................-0.3V to (V + 0.3V) BATT 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%, V = +5V to +42V, T = T to T , unless otherwise noted. Typical values are at V = +5V, V = 14V, CC BATT A MIN MAX CC BATT R1 = 100, T = +25C.) (Notes 1, 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VOLTAGE SUPPLIES Dominant normal operating mode, no load, 16 30 TXD = 0 mA Recessive normal operating mode, Supply Current I 4 10 CC TXD = V CC Low-power modes: 3 10 A V = V , V = 14V TXD CC BATT Low-power modes at V = V , TRL BATT Battery Current I 5 54 125 A BATT V = V = V = 5V to 27V BATT WAKE INH Battery Power on Flag Threshold V Low-power modes 1.0 3.5 V PWRON STB, EN, AND TXD High-Level Input Voltage V 2.4 V IH Low-Level Input Voltage V 0.8 V IL STB and EN 9 20 High-Level Input Current I V = 4V A IH IN TXD -200 -80 -25 STB and EN 4 8 Low-Level Input Current I V = 1V A IL IN TXD -800 -320 -100 Supply VoltageForced Standby V V = 14V 2.75 4.50 V FS BATT Mode (Fail-Safe) RXD AND ERR High-Level Output Voltage V I = -1mA V - 0.5 V V OH OUT CC CC Low-Level Output Voltage V I = 7.5mA 0 0.9 V OL OUT WAKE Wake-Up Threshold Voltage V ) V = 0V 2.0 2.7 3.4 V TH(WAKE STB Low-Level Input Current I V = 0V -10 -4 -1 A IL(WAKE) WAKE Maxim Integrated 2 www.maximintegrated.com