MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection General Description The MAX13050/MAX13052/MAX13053/MAX13054 are pin-for-pin compatible, industry-standard, high-speed, control area network (CAN) transceivers with extended 80V fault protection. These products are ideal industrial network applications where overvoltage protection is required. These CAN transceivers provide a link between the CAN protocol controller and the physical wires of the bus lines in a CAN. These devices can be used for DeviceNet(R) applications, requiring data rates up to 1Mbps. The CAN transceivers have an input common-mode range greater than 12V, exceeding the ISO11898 specification of -2V to +7V, and feature 8kV ESD protection, making these devices ideal for harsh industrial environments. The CAN transceivers provide a dominant timeout function that prevents erroneous CAN controllers from clamping the bus to a dominant level if the TXD input is held low for greater than 1ms. The MAX13050/MAX13052 provide a SPLIT pin used to stabilize the recessive common-mode voltage. The MAX13052 also has a slope-control mode that can be used to program the slew rate of the transmitter for data rates of up to 500kbps. The MAX13053 features a silent mode that disables the transmitter. The MAX13053 also has a reference output that can be used to bias the input of older CAN controllers that have a differential comparator. The MAX13054 has a separate dedicated logic input (VCC2) allowing interfacing with a +3.3V microcontroller. The MAX13050/MAX13052/MAX13053/MAX13054 are available in an 8-pin SO package and are specified to operate in the -40C to +85C and the -40C to +125C temperature ranges. 19-3598; Rev 2; 1/16 Benefits and Features Fully Compatible with the ISO11898 Standard 8kV ESD IEC 61000-4-2 Contact Discharge per IBEE Test Facility 80V Fault Protection +3.3V Logic Compatible (MAX13054) High-Speed Operation of Up to 1Mbps Slope-Control Mode (MAX13052) Greater than 12V Common-Mode Range Low-Current Standby Mode Silent Mode (MAX13053) Thermal Shutdown Short-Circuit Protection Transmit (TXD) Data Dominant Timeout Current Limiting SPLIT Pin (MAX13050/MAX13052) Applications DeviceNet Nodes Medium- and Heavy-Duty Truck Systems Industrial Functional Diagrams and Typical Operating Circuits appear at end of data sheet. DeviceNet is a registered trademark of the Open DeviceNet Vendor Association. MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Absolute Maximum Ratings VCC, VCC2...............................................................-0.3V to +6V RS............................................................. -0.3V to (VCC + 0.3V) TXD, STBY, S, REF, RXD........................................-0.3V to +6V CANH, CANL, SPLIT........................................................... 80V Continuous Power Dissipation (TA = +70C) 8-Pin SO (derate 5.9mW/C above +70C)..................470mW Operating Temperature Range.......................... -40C to +125C Junction Temperature.......................................................+150C Storage Temperature Range..................................-65C +150C Lead Temperature (soldering, 10s).................................. +300C Soldering Temperature (reflow)........................................+260C 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 (VCC = +5V 5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V, RL = 60, and TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP Dominant, RL = 60 VCC Supply Current ICC VCC2 Supply Current ICC2 Recessive Silent Mode Thermal-Shutdown Threshold Thermal-Shutdown Hysteresis ISTANDBY ISILENT UNITS 72 MAX13050/MAX13052/ MAX13053 12.5 MAX13054 Standby Current MAX mA 10 MAX13054, TXD = VCC2 or unconnected 15 MAX13052 25 MAX13050/MAX13054 11 MAX13053 12.5 TSH A A mA +165 C 13 C INPUT LEVELS (TXD, STBY, S) 2 High-Level Input Voltage VIH Low-Level Input Voltage VIL High-Level Input Current IIH Low-Level Input Current IIL TXD, STBY (MAX13054) V 0.7 x VCC2 0.8 Input Capacitance CANH, CANL TRANSMITTER CIN TXD, STBY (MAX13054) VTXD = VCC, VTXD = VCC2 (MAX13054) VSTBY = VCC, VS = VCC (MAX13053) VTXD = GND VSTBY = GND, VS = GND (MAX13053) Recessive Bus Voltage VCANH, VCANL Normal mode, VTXD = VCC, no load Recessive Output Current ICANH, ICANL VCANH, VCANL = 76V CANH Output Voltage VCANH VTXD = 0, dominant CANL Output Voltage Matching Between CANH and CANL Output Voltage www.maximintegrated.com VCANL DOM 0.3 x VCC2 Standby mode, no load -5 +5 -5 +5 -300 -100 -10 -1 10 V A A pF 2 3 V -100 +100 mV 3 mA -32V VCANH, VCANL +32V -2.5 +2.5 3.0 4.25 V VTXD = 0, dominant 0.50 1.75 V VTXD = 0, dominant, TA = +25C, (VCANH + VCANL) - VCC -100 +150 mV Maxim Integrated 2 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection DC Electrical Characteristics (continued) (VCC = +5V 5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V, RL = 60, and TA = +25C.) (Note 1) PARAMETER Differential Output (VCANH - VCANL) CANH Short-Circuit Current CANL Short-Circuit Current SYMBOL VDIFF ICANHSC ICANLSC RXD OUTPUT LEVELS RXD High-Output-Voltage Level RXD Low-Output-Voltage Level VOH VOL CONDITIONS Dominant, VTXD = 0, 45 RL 60 Recessive, VTXD = VCC, no load VCANH = 0, VTXD = 0 VCANL = 5V, VTXD = 0 VCANL = 40V, VTXD = 0 (Note 2) MIN TYP MAX UNITS 1.5 3.0 V -50 +50 mV mA -100 -70 -45 40 60 90 40 60 90 VCANL = 76V, VTXD = 0 mA 63 I = -100A 0.8 x VCC VCC I = -100A (MAX13054) 0.8 x VCC2 VCC2 I = 5mA V 0.4 V 0.7 x VCC V COMMON-MODE STABILIZATION (SPLIT) and REF Output Voltage VSPLIT Leakage Current ILEAK REF Output Voltage VREF Normal mode, -500A ISPLIT 500A Standby mode, -40V VSPLIT +40V Differential Input Hysteresis Common-Mode Input Resistance VDIFF VDIFF(HYST) RICM Matching Between CANH and CANL Common-Mode Input Resistance RIC_MATCH Differential Input Resistance RDIFF Common-Mode Input Capacitance Differential Input Capacitance Input Leakage Current SLOPE CONTROL RS (MAX13052) Input Voltage for High Speed www.maximintegrated.com CIM ILI VIL_RS 20 Standby mode, -76V VSPLIT +76V -50A IREF +50A (MAX13053) DC BUS RECEIVER (VTXD = VCC, CANH and CANL externally driven) Differential Input Voltage 0.3 x VCC 50 0.45 x VCC -12V VCM +12V 0.5 MAX13050/MAX13052/MAX13054 -12V VCM +12V (standby mode) 0.50 Normal mode, -12V VCM +12V 0.55 x VCC 0.7 A V 0.9 1.15 70 V mV Normal or standby mode, VCANH = VCANL = 12V 15 35 k VCANH = VCANL -3 +3 % Normal or standby mode, VCANH - VCANL = 1V 25 75 k VTXD = VCC VTXD = VCC VCC = 0, VCANH = VCANL = 5V 20 pF 10 -5 pF +5 A 0.3 x VCC V Maxim Integrated 3 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection DC Electrical Characteristics (continued) (VCC = +5V 5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V, RL = 60, and TA = +25C.) (Note 1) PARAMETER SYMBOL Input Voltage for Standby VIH_RS Slope-Control Mode Voltage VSLOPE High-Speed Mode Current IIL_RS CONDITIONS MIN MAX 0.75 x VCC -200A < IRS < 10A 0.4 x VCC VRS = 0 -500 IEC 61000-4-2 Contact Discharge Method per IBEE test facility (Note 3) ESD Protection TYP UNITS V 0.6 x VCC V A 8 kV Timing Characteristics (VCC = +5V 5%, VCC2 = +3V to +3.6V, RL = 60, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V, and TA = +25C.) PARAMETER Delay TXD to Bus Active SYMBOL tONTXD CONDITIONS TYP MAX UNITS 66 110 ns MAX13050/MAX13052/ MAX13053 61 95 MAX13054 70 110 Figure 1 (Note 4) MIN Delay TXD to Bus Inactive tOFFTXD Figure 1 (Note 4) Delay Bus to Receiver Active Figure 1 (Note 4) 54 115 ns Delay Bus to Receiver Inactive tONRXD tOFFRXD Figure 1 (Note 4) 46 160 ns Delay TXD to RXD Active (Dominant Loop Delay) tONLOOP Figure 1 (Note 4) 121 255 ns Delay TXD to RXD Inactive (Recessive Loop Delay) tOFFLOOP Figure 4 (Note 4) 108 255 ns RRS = 24k (500kbps) 280 450 ns RRS = 100k (125kbps) 0.82 1.6 RRS = 180k (62.5kbps) 1.37 5 RRS = 24k (500kbps) 386 600 RRS = 100k (125kbps) 0.74 1.6 RRS = 180k (62.5kbps) 0.97 5 RRS = 24k (500kbps) 10 RRS = 100k (125kbps) 2.7 RRS = 180k (62.5kbps) 1.6 Delay TXD to RXD Active (Dominant Loop Delay) SlewRate Controlled Delay TXD to RXD Inactive (Loop Delay) Slew-Rate Controlled Differential Output Slew Rate www.maximintegrated.com tONLOOP-S MAX13052 tOFFLOOP-S MAX13052 ISRI MAX13052 ns s ns s V/s Maxim Integrated 4 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Timing Characteristics (continued) (VCC = +5V 5%, VCC2 = +3V to +3.6V, RL = 60, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V, and TA = +25C.) PARAMETER SYMBOL Dominant Time for Wake-Up with Bus tWAKE Delay STBY to Normal Mode (DOMINANT) tSTBY-NORM TXD Dominant Timeout tDOM CONDITIONS Standby mode, VDIFF = +3V, Figure 2 MIN TYP MAX UNITS 0.75 1.5 3.00 s 10 s 1.0 ms TXD = 0 (MAX13050, MAX13054) FROM STBY falling to CANH - CANL = 0.9V 5 VTXD = 0 0.3 0.6 Note 1: All currents into the device are positive, all currents out of the device are negative. All voltages are referenced to the device ground, unless otherwise noted. Note 2: Guaranteed by design, not production tested. Note 3: ESD tested by IBEE test facility. Please contact factory for report. Note 4: For the MAX13052, VRS = 0. Timing Diagrams TXD DOMINANT 0.9V 0.5V RECESSIVE VDIFF RXD 0.7 x VCC OR 0.7 x VCC2 0.3 x VCC OR 0.3 x VCC2 tONTXD tOFFTXD tONRXD tONLOOP tOFFRXD tOFFLOOP Figure 1. Timing Diagram www.maximintegrated.com Maxim Integrated 5 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Timing Diagrams (continued) STANDBY MODE DOMINANT 0.9V VDIFF RXD tWAKE Figure 2. Timing Diagram for Standby and Wake-Up Signal Typical Operating Characteristics (VCC = +5V, RL = 60, CL = 100pF, VCC2 = +3.3V, and TA = +25C, unless otherwise noted.) 20 15 DOMINANT 10 30 25 TA = -40C TA = +25C MAX13052 19.0 18.0 17.0 16.0 15.0 14.0 13.0 12.0 11.0 RECESSIVE 0 MAX13050 toc03 TA = +125C 20 5 0 35 STANDBY SUPPLY CURRENT vs. TEMPERATURE (RS = VCC) 20.0 STANDBY SUPPLY CURRENT (A) SLEW RATE (V/s) 25 40 SUPPLY CURRENT vs. DATA RATE MAX13050 toc02 MAX13052 SUPPLY CURRENT (mA) 30 MAX13050 toc01 SLEW RATE vs. RRS AT 100kbps 20 40 60 80 100 120 140 160 180 200 RRS (k) www.maximintegrated.com 15 0 100 200 300 400 500 600 700 800 900 1000 DATA RATE (kbps) 10.0 -50 -25 0 25 50 75 100 125 TEMPERATURE (C) Maxim Integrated 6 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Typical Operating Characteristics (continued) (VCC = +5V, RL = 60, CL = 100pF, VCC2 = +3.3V, and TA = +25C, unless otherwise noted.) 6.0 5.5 5.0 4.5 4.0 -25 0 25 50 75 100 30 20 10 -50 -25 0 25 50 75 100 100 DOMINANT 80 60 40 RECESSIVE 20 0 125 MAX13050 toc06 120 -50 -25 0 25 50 75 100 REF VOLTAGE vs. REG OUTPUT CURRENT SPLIT LEAKAGE CURRENT vs. TEMPERATURE RECEIVER OUTPUT LOW vs. OUTPUT CURRENT 2.50 2.48 2.46 2.44 10 15 20 25 30 35 40 45 50 0.0001 1.0 TA = +25C 0.8 0.6 TA = +125C 0.4 MAX13050 toc08 0.2 -50 -25 0 25 50 75 100 0 125 TA = -40C 5 0 10 15 20 REG OUTPUT CURRENT (A) TEMPERATURE (C) OUTPUT CURRENT (mA) RECEIVER OUTPUT HIGH vs. OUTPUT CURRENT RECEIVER OUTPUT HIGH vs. OUTPUT CURRENT RECEIVER OUTPUT LOW vs. OUTPUT CURRENT MAX13054 250 TA = +125C 200 TA = +25C 150 100 50 TA = -40C 0 0.01 100 200 300 400 OUTPUT CURRENT (A) www.maximintegrated.com 500 600 2.0 MAX13050/MAX13052/MAX13053 1.8 1.6 TA = +25C 1.4 TA = +125C 1.2 1.0 0.8 0.6 0.4 TA = -40C 0.2 0 0 1 2 3 4 5 300.0 MAX13054 VCC2 = +3.3V 250.0 VOLTAGE RXD (mV) 300 5 MAX13050 toc10 0 0.1 0.001 TA = -40C 2.42 1 MAX13050/MAX13052/MAX13053 1.2 VOLTAGE RXD (V) TA = +25C TA = +125C 2.52 1.4 MAX13050 toc11 2.54 10 200.0 TA = +125C TA = +25C 150.0 100.0 TA = -40C 50.0 6 OUTPUT CURRENT (mA) 7 8 125 MAX13050 toc09 TEMPERATURE (C) LEAKAGE CURRENT (A) REF VOLTAGE (V) RECESSIVE 40 140 TEMPERATURE (C) 2.56 0 50 160 TEMPERATURE (C) 2.58 2.40 60 0 125 RECEIVER OUTPUT HIGH (VCC - RXD) (V) 2.60 -50 DOMINANT 70 180 MAX13050 toc12 6.5 80 200 DRIVER PROPAGATION DELAY (ns) 7.0 DATA RATE = 100kbps 90 DRIVER PROPAGATION DELAY vs. TEMPERATURE MAX13050 toc04 7.5 100 RECEIVER PROPAGATION DELAY (ns) MAX13050 toc04 MAX13050 MAX13054 MAX13050 toc07 STANDBY SUPPLY CURRENT (A) 8.0 RECEIVER OUTPUT HIGH (VCC2 - RXD) (mV) RECEIVER PROPAGATION DELAY vs. TEMPERATURE STANDBY SUPPLY CURRENT vs. TEMPERATURE (STBY = VCC) 0 0 1 2 3 4 5 OUTPUT CURRENT (mA) Maxim Integrated 7 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Typical Operating Characteristics (continued) (VCC = +5V, RL = 60, CL = 100pF, VCC2 = +3.3V, and TA = +25C, unless otherwise noted.) DIFFERENTIAL VOLTAGE vs. DIFFERENTIAL LOAD 3.0 MAX13050 toc15 MAX13051 toc14 TA = -40C 2.5 MAX13054 WAVEFORM RECEIVER PROPAGATION DELAY MAX13050 toc13 VDIFF (1V/div) TXD 2V/div TA = +125C 2.0 TA = +25C VDIFF 2V/div 1.5 1.0 RXD (2V/div) 0.5 20 60 100 140 180 220 260 300 DIFFERENTIAL LOAD RL () DRIVER PROPAGATION DELAY, (RRS = 24k, 75k AND 100k) 200ns/div DRIVER PROPAGATION DELAY LOOPBACK PROPAGATION DELAY vs. RRS MAX13051 toc17 MAX13051 toc16 MAX13052 200ns TXD (5V/div) 1.4 TXD (2V/div) VDIFF (2V/div) RRS = 24k VDIFF (2V/div) RRS = 75k VDIFF (1V/div) VDIFF (2V/div) RRS = 100k 1.00s www.maximintegrated.com MAX13052 1.2 1.0 RECESSIVE 0.8 0.6 DOMINANT 0.4 0.2 0 200ns/div MAX13051 toc18 0 RXD 2V/div LOOPBACK PROPAGATION DELAY (s) DIFFERENTIAL VOLTAGE (V) 3.5 0 20 40 60 80 100 120 140 160 180 200 RRS (k) Maxim Integrated 8 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Pin Configurations TOP VIEW TXD 1 + 8 STBY TXD 1 7 CANH GND 2 + 8 RS TXD 1 7 CANH GND 2 + 8 S TXD 1 7 CANH GND 2 + 8 STBY 7 CANH GND 2 VCC 3 6 CANL VCC 3 6 CANL VCC 3 6 CANL VCC 3 6 CANL RXD 4 5 SPLIT RXD 4 5 SPLIT RXD 4 5 REF RXD 4 5 VCC2 MAX13050 MAX13052 SO SO MAX13053 MAX13054 SO SO Pin Description MAX13050 MAX13052 MAX13053 MAX13054 PIN 1 1 1 1 TXD Transmit Data Input. TXD is a CMOS/TTL-compatible input from a CAN controller with a 25k pullup to VCC. For the MAX13054, TXD is pulled to VCC2. 2 2 2 2 GND Ground 3 3 3 3 VCC Supply Voltage. Bypass VCC to GND with a 0.1F capacitor. 4 4 4 4 RXD Receive Data Output. RXD is a CMOS/TTL-compatible output from the physical bus lines CANH and CANL. For the MAX13054, RXD output voltage is referenced to the VCC2 supply voltage. 5 5 -- -- SPLIT Common-Mode Stabilization Output. Output equaled to 0.5 x VCC. SPLIT goes high impedance in standby mode . 6 6 6 6 CANL CAN Bus-Line Low 7 7 7 7 CANH CAN Bus-Line High 8 -- -- 8 STBY Standby Input. Drive STBY low for high-speed operation. Drive STBY high to place the device in low-current standby mode. -- 8 -- -- RS Mode-Select Input. Drive RS low or connect to GND for high-speed operation. Connect a resistor between RS and GND to control output slope. Drive RS high to put into standby mode. -- -- 5 -- REF Reference Output Voltage. Always on reference output voltage, set to 0.5 x VCC. -- -- 8 -- S Silent-Mode Input. Drive S low to enable TXD and to operate in high-speed mode. Drive S high to disable the transmitter. VCC2 Logic-Supply Input. VCC2 is the logic supply voltage for the input/output between the CAN transceiver and microprocessor. VCC2 allows fully compatible +3.3V logic on all digital lines. Bypass to GND with a 0.1F capacitor. Connect VCC2 to VCC for 5V logic compatibility. -- -- -- www.maximintegrated.com 5 NAME FUNCTION Maxim Integrated 9 MAX13050/MAX13052/ MAX13053/MAX13054 Detailed Description The MAX13050/MAX13052/MAX13053/MAX13054 80V fault-protected CAN transceivers are ideal for industrial network applications where overvoltage protection is required. These devices provide a link between the CAN protocol controller and the physical wires of the bus lines in a control area network (CAN). These devices can be used for DeviceNet applications, requiring data rates up to 1Mbps. The devices' dominant timeout prevents the bus from being blocked by a hungup microcontroller. If the TXD input is held low for greater than 1ms, the transmitter becomes disabled, driving the bus line to a recessive state. The MAX13054 +3.3V logic input allows the device to communicate with +3.3V logic, while operating from a +5V supply. The MAX13050 and MAX13052 provide a split DC-stabilized voltage. The MAX13053 has a reference output that can be used to bias the input of a CAN controller's differential comparator. All devices can operate up to 1Mbps (high-speed mode). The MAX13052 slope-control feature allows the user to program the slew rate of the transmitter for data rates of up to 500kbps. This reduces the effects of EMI, thus allowing the use of unshielded-twisted or parallel cable. The MAX13050/MAX13052 and MAX13054 standby mode shuts off the transmitter and switches the receiver to a low-current/low-speed state. The device input common-mode range is greater than 12V, exceeding the ISO11898 specification of -2V to +7V, and feature 8kV Contact Discharge protection, making these devices ideal for harsh industrial environments. 80V Fault Protected The devices feature 80V fault protection. This extended voltage range of CANH, CANL, and SPLIT allows use in high-voltage systems and communication with highvoltage buses. Operating Modes High-Speed Mode The devices can achieve transmission rates of up to 1Mbps when operating in high-speed mode. Drive STBY low to operate the MAX13050 and MAX13054 in highspeed operation. Connect RS to ground to operate the MAX13052 in high-speed mode. Slope-Control Mode (MAX13052) Connect a resistor from RS to ground to select slopecontrol mode (Table 1). In slope-control mode, CANH and CANL slew rates are controlled by the resistor (16k RRS 200k) connected between RS and GND. Controlling the rise and fall slopes reduces high-frequency www.maximintegrated.com Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Table 1. Mode Selection Truth Table MAX13052 CONDITION FORCED AT RS MODE RESULTING CURRENT AT RS VRS or 0.3 x VCC High-Speed |IRS| 500A 0.4 x VCC VRS 0.6 x VCC Slope Control 10A |IRS| 200A VRS 0.75 x VCC Standby |IRS| 10A EMI and allows the use of an unshielded-twisted pair or a parallel pair of wires as bus lines. The slew rate can be approximated using the formula below: SR(V / s) = 250 R RS where, SR is the desired slew rate and RRS is in k. Standby Mode (MAX13050/MAX13052/MAX13054) In standby mode (RS or STBY = high), the transmitter is switched off and the receiver is switched to a lowcurrent/low-speed state. The supply current is reduced during standby mode. The bus line is monitored by a lowdifferential comparator to detect and recognize a wakeup event on the bus line. Once the comparator detects a dominant bus level greater than tWAKE, RXD pulls low. Drive STBY high for standby mode operation for the MAX13050 and MAX13054. Apply a logic-high to RS to enter a low-current standby mode for the MAX13052. Silent Mode S (MAX13053) Drive S high to place the MAX13053 in silent mode. When operating in silent mode, the transmitter is disabled regardless of the voltage level at TXD. RXD however, still monitors activity on the bus line. Common-Mode Stabilization (SPLIT) SPLIT provides a DC common-mode stabilization voltage of 0.5 x VCC when operating in normal mode. SPLIT stabilizes the recessive voltage to 0.5 x VCC for conditions when the recessive bus voltage is lowered, caused by an unsupplied transceiver in the network with a significant leakage current from the bus lines to ground. Use SPLIT to stabilize the recessive common-mode voltage by connecting SPLIT to the center tap of the split termination, see the Typical Operating Circuits. In standby mode or when VCC = 0, SPLIT becomes high impedance. Maxim Integrated 10 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Table 2. Transmitter and Receiver Truth Table (MAX13052) TXD RS CANH CANL BUS STATE Low VRS 0.75 x VCC High Low Dominant Low VCC / 2 VCC / 2 Recessive High RICM to GND Recessive High RXD High or Open X VRS 0.75 x VCC VRS 0.75 x VCC RICM to GND RXD Table 3. Transmitter and Receiver Truth Table (MAX13053) TXD RS CANH CANL BUS STATE Low VS < 0.8V High Low Dominant Low VCC / 2 VCC / 2 Recessive High VCC / 2 Recessive High High or Open VS < 0.8V X VS > 2V VCC / 2 (MAX13050/MAX13054) TXD RS CANH CANL BUS STATE RXD Low VSTBY 0.8V *VSTBY 0.3 x VCC2 High Low Dominant Low High or Open VSTBY 0.8V *VSTBY 0.3 x VCC2 VCC / 2 VCC / 2 Recessive High X VSTBY 2V *VSTBY 0.7 x VCC2 RICM to GND RICM to GND Recessive High *For the MAX13054 TXD Dominant Timeout tDOM TXD VCANH - VCANL TRANSMITTER ENABLED TRANSMITTER DISABLED The CAN transceivers provide a transmitter dominant timeout function that prevents erroneous CAN controllers from clamping the bus to a dominant level by a continuous low TXD signal. When the TXD remains low for the 1ms maximum timeout period, the transmitter becomes disabled, thus driving the bus line to a recessive state (Figure 3). The transmitter becomes enabled upon detecting a rising edge at TXD. Receiver Figure 3. Transmitter Dominant Timeout Timing Diagram Reference Output (MAX13053) MAX13053 has a reference voltage output (REF) set to 0.5 x VCC. REF can be utilized to bias the input of a CAN controller's differential comparator, and to provide power to external circuitry. Transmitter The transmitter converts a single-ended input (TXD) from the CAN controller to differential outputs for the bus lines (CANH, CANL). The truth table for the transmitter and receiver is given in Table 2. www.maximintegrated.com The receiver reads differential inputs from the bus lines (CANH, CANL) and transfers this data as a single-ended output (RXD) to the CAN controller. It consists of a comparator that senses the difference VDIFF = (CANH - CANL) with respect to an internal threshold of 0.7V. If this difference is positive (i.e., VDIFF > 0.7), a logic-low is present at RXD. If negative (i.e., VDIFF < 0.7V), a logichigh is present. The CANH and CANL common-mode range is greater than 12V. RXD is logic-high when CANH and CANL are shorted or terminated and undriven. Maxim Integrated 11 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection MAX13052 TWISTED PAIR CANH RL = 60 TXD RXD RL = 120W TRANSCEIVER 3 SPLIT RL = 60 CANL STUB LENGTH KEEP AS SHORT AS POSSIBLE TRANSCEIVER 1 TRANSCEIVER 2 Figure 4. Multiple Receivers Connected to CAN Bus +3.3V Logic Compatibility (MAX13054) A separate input, VCC2, allows the MAX13054 to communicate with +3.3V logic systems while operating from a +5V supply. This provides a reduced input voltage threshold to the TXD and STBY inputs, and provides a logic-high output at RXD compatible with the microcontroller's system voltage. The logic compatibility eliminates longer propagation delay due to level shifting. Connect VCC2 to VCC to operate the MAX13054 with +5V logic systems. RC 50M to 100M CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE Cs 150pF RD 330 DISCHARGE RESISTANCE STORAGE CAPACITOR DEVICE UNDER TEST Driver Output Protection The current-limiting feature protects the transmitter output stage against a short circuit to a positive and negative battery voltage. Although the power dissipation increases during this fault condition, current-limit protection prevents destruction of the transmitter output stage. Upon removal of a short, the CAN transceiver resumes normal operation. Figure 5. IEC 61000-4-2 Contact Discharge ESD Test Model I 100% 90% If the junction temperature exceeds +165C, the driver is switched off. The hysteresis is approximately 13C, disabling thermal shutdown once the temperature drops below +152C. In thermal shutdown, CANH and CANL go recessive. After a thermal-shutdown event, the IC resumes normal operation when the junction temperature drops below the thermal-shutdown hysteresis, and upon the CAN transceiver detecting a rising edge at TXD. I PEAK Thermal Shutdown 10% t r = 0.7ns to 1ns t 30ns 60ns Figure 6. IEC 61000-4-2 ESD Test Model Current Waveform www.maximintegrated.com Maxim Integrated 12 MAX13050/MAX13052/ MAX13053/MAX13054 Applications Information Reduced EMI and Reflections In slope-control mode, the MAX13052's CANH and CANL outputs are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. In multidrop CAN applications, it is important to maintain a direct point-to-point wiring scheme. A single pair of wires should connect each element of the CAN bus, and the two ends of the bus should be terminated with 120 resistors, see Figure 4. A star configuration should never be used. Any deviation from the point-to-point wiring scheme creates a stub. The high-speed edge of the CAN data on a stub can create reflections back down the bus. These reflections can cause data errors by eroding the noise margin of the system. Although stubs are unavoidable in a multidrop system, care should be taken to keep these stubs as small as possible, especially in high-speed mode. In slope-control mode, the requirements are not as rigorous, but stub length should still be minimized. Layout Consideration CANH and CANL are differential signals and steps should be taken to insure equivalent parasitic capacitance. Place the resistor at RS as close as possible to the MAX13052 to minimize any possible noise coupling at the input. Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection ESD Protection ESD-protection structures are incorporated on CANH and CANL to protect against ESD encountered during handling and assembly. CANH and CANL inputs have extra protection to protect against static electricity found in normal operation. Maxim's engineers have developed state-of-the-art structures to protect these pins against 8kV ESD Contact Discharge without damage. After an ESD event, the MAX13050/ MAX13052/MAX13053/MAX13054 continue working without latchup. ESD protection can be tested in several ways. The CANH and CANL inputs are characterized for protection to 8kV using the IEC 61000-4-2 Contact Discharge Method per IBEE Test facility. ESD Test Conditions ESD performance depends on a number of conditions. Contact Maxim for a reliability report that documents test setup, methodology, and results. Human Body Model Figure 5 shows the IEC 61000-4-2 Contact Discharge Model, and Figure 6 shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5k resistor. Power Supply and Bypassing These devices require no special layout considerations beyond common practices. Bypass VCC and VCC2 to GND with a 0.1F ceramic capacitor mounted close to the IC with short lead lengths and wide trace widths. www.maximintegrated.com Maxim Integrated 13 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Functional Diagrams VCC MAX13050 R THERMAL SHUTDOWN TXD DOMINANT TIMEOUT DRIVER SPLIT R CANH CANL WAKE-UP MODE CONTROL STBY GND WAKE-UP FILTER RXD www.maximintegrated.com MUX Maxim Integrated 14 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Functional Diagrams (continued) VCC MAX13052 R THERMAL SHUTDOWN TXD TIMEOUT AND SLOPECONTROL MODE DRIVER SPLIT R CANH CANL RS WAKE-UP MODE CONTROL GND WAKE-UP FILTER RXD www.maximintegrated.com MUX Maxim Integrated 15 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Functional Diagrams (continued) VCC MAX13053 R REF R THERMAL SHUTDOWN S TXD DRIVER DOMINANT TIMEOUT CANH CANL RS WAKE-UP MODE CONTROL GND WAKE-UP FILTER RXD www.maximintegrated.com MUX Maxim Integrated 16 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Functional Diagrams (continued) VCC MAX13054 THERMAL SHUTDOWN VCC2 CANH DOMINANT TIMEOUT TXD DRIVER CANL WAKE-UP MODE CONTROL STBY GND WAKE-UP FILTER MUX VCC2 RXD DRIVER www.maximintegrated.com Maxim Integrated 17 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Typical Operating Circuits 0.1F VCC 0.1F VCC VCC CAN CONTROLLER TXO TO BUS CANH MAX13050 CAN CONTROLLER TXO 60 TXD SPLIT RXD RXO STBY I/O GND GND CANL STBY I/O GND TO BUS CANH MAX13053 RXD GND MAX13054 4.7nF STBY 60 +3.3V CANL GND 60 RXD I/O 60 REF TO BUS TXD RXO 4.7nF S GND CANL CANH VCC CAN CONTROLLER TXO 60 TXD I/O 4.7nF 0.1F VCC VCC RXO SPLIT RXD 0.1F VCC CAN CONTROLLER TXO 60 60 60 GND MAX13052 TXD RXO 4.7nF TO BUS CANH VCC LOGIC 0.1mF GND CANL Selector Guide PART SPLIT SLOPE CONTROL STANDBY MODE SILENT MODE 3.3V SUPPLY REF PIN-FOR-PIN REPLACEMENT MAX13050 Yes -- Yes -- -- -- TJA1040 MAX13052 Yes Yes Yes -- -- -- PCA82C250/51 MAX13053 -- -- -- Yes -- Yes TJA1050, AMIS-30660 MAX13054 -- -- Yes Yes -- TLE6250v33, CF163 www.maximintegrated.com Maxim Integrated 18 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Package Information Ordering Information PART TEMP RANGE PIN-PACKAGE MAX13050ESA+ -40C to +85C 8 SO MAX13050ASA+ -40C to +125C 8 SO MAX13052ESA+ -40C to +85C 8 SO MAX13052ASA+ -40C to +125C 8 SO MAX13053ESA+ -40C to +85C 8 SO MAX13053ASA+ -40C to +125C 8 SO MAX13054ESA+ -40C to +85C 8 SO MAX13054ASA+ -40C to +125C 8 SO For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 SO S8M+5 21-0041 90-0096 +Denotes a lead(Pb)-free/RoHS-compliant package. Chip Information PROCESS: BiCMOS www.maximintegrated.com Maxim Integrated 19 MAX13050/MAX13052/ MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with 80V Fault Protection Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 1 2/05 Initial release 2/13 Removed automotive part information and references throughout data sheet 1, 9-12, 19 2 1/16 Updated ESD report availability -- 5 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated's website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2016 Maxim Integrated Products, Inc. 20 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX13052ASA+ MAX13054ESA+ MAX13054ESA+T MAX13050ASA+ MAX13050ASA+T MAX13052ASA+T MAX13052ESA+ MAX13052ESA+T MAX13053ASA+ MAX13053ASA+T MAX13053ESA+ MAX13053ESA+T MAX13054ASA+ MAX13054ASA+T