Fault Tolerant Differential CAN-Transceiver TLE 6254-2G Final Data Sheet 1 Features * Data transmission rate up to 125 kBaud * Very low current consumption in stand-by and sleep operation mode * Implemented receive-only mode * Optimized EMC behavior * Wake-up input pin, dual edge sensitive P-DSO-14-13 * Battery fail flag * Extended bus failure management to guarantee safe operation during all bus line failure events * Full support of dual failure conditions * Fully wake-up capability during all bus line failures conditions * Supports one-wire transmission mode with ground offset voltages up to 1.5 V * Prevention from bus occupation in case of CAN controller failure * Thermal protection * Bus line error protection against transients in automotive environment Type Ordering Code Package TLE 6254-2G Q67006-A9549 P-DSO-14-13 (SMD) 2 Description The CAN-Transceiver TLE 6254-2G works as the interface between the CAN protocol controller and the physical CAN bus-lines. It is optimized for low-speed data transmission (up to 125 kBaud) in automotive and industrial applications. While no data is transferred, the power consumption can be minimized by multiple low power modes. In normal operation mode a differential signal is transmitted/received. When bus wiring failures are detected the device automatically switches in a dedicated single-wire mode to maintain communication. Data Sheet Version 1.4 1 2003-07-22 Final Data TLE 6254-2G Pin Configuration (top view) 3 Pin Configuration (top view) P-DSO-14-13 INH 1 14 VS TxD 2 13 GND RxD 3 12 CANL NERR 4 11 CANH NSTB 5 10 VCC ENT 6 9 RTL WK 7 8 RTH Figure 1 Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 INH Inhibit output; for controlling an external voltage regulator 2 TxD Transmit data input; integrated pull up, LOW: bus becomes dominant, HIGH: bus becomes recessive 3 RxD Receive data output; integrated pull up, LOW: bus is dominant, HIGH: bus is recessive 4 NERR Error flag output; integrated pull up, LOW: bus error (in normal operation mode), further functions see Table 2 5 NSTB Not stand-by input; digital control inputs to select operation modes, see Figure 4 6 ENT Enable transfer input; digital control input to select operation modes, see Figure 4 Data Sheet Version 1.4 2 2003-07-22 Final Data TLE 6254-2G Pin Configuration (top view) Table 1 Pin Definitions and Functions (cont'd) Pin No. Symbol Function 7 WK Wake-Up input; if level of VWAKE changes the device indicates a wake-up from low power mode by switching the RxD and INT outputs LOW and switching the INH output HIGH (in sleep mode), see Table 2 8 RTH Termination resistor output; connect to CANH bus-line via termination resistor (500 < RRTH < 16 k), controlled by internal failure management 9 RTL Termination resistor output; connect to CANL bus-line via termination resistor (500 < RRTL < 16 k), controlled by internal failure and mode management 10 VCC Supply voltage input; + 5 V, block to GND directly at the IC with ceramic capacitor 11 CANH CAN bus line H; HIGH: dominant state 12 CANL CAN bus line L; LOW: dominant state 13 GND Ground 14 VS Battery voltage supply input; block to GND directly at the IC with ceramic capacitor Data Sheet Version 1.4 3 2003-07-22 Final Data TLE 6254-2G Functional Block Diagram 4 Functional Block Diagram RTL Vs 10 14 Mode Control (normal, stand-by, sleep) 9 Driver CANH 11 Output Stage CANL 12 RTH Vcc Time Out 1 INH 7 WK 6 ENT 5 NSTB 2 TxD 4 NERR 3 RxD Temp.Protection 8 Vcc Bus Failure Wake-Up Vbat Fail Flag -2.8 3.2 7.2 GND 13 Figure 2 Multiplexer Filter Failure Management 7.2 1.8 VCC VCC Vcc Receiver Block Diagram Data Sheet Version 1.4 4 2003-07-22 Final Data TLE 6254-2G Circuit Description 5 Circuit Description The CAN transceiver TLE 6254-2G works as the interface between the CAN protocol controller and the physical CAN bus-lines. Figure 3 shows the principle configuration of a CAN network. The TLE 6254-2G is optimized for low-speed data transmission (up to 125 kBaud) in automotive and industrial applications. In normal operation mode a differential signal is transmitted/received. When bus wiring failures are detected the device automatically switches in a dedicated single-wire mode to maintain communication. While no data is transferred, the power consumption can be minimized by multiple low power operation modes. Further a receive-only mode is implemented. To reduce radiated electromagnetic emission (EME) the dynamic slopes of the CANL and CANH signals are both limited and symmetric. This allows the use of an unshielded twisted or parallel pair of wires for the bus. During single-wire transmission (one of the bus lines is affected by a bus line failure) the EME performance of the system is degraded from the differential mode. In case the transmission data input TxD is permanently dominant, both, the CANH and CANL transmitting stage are disabled after a certain delay time. This is necessary to prevent the bus from being blocked by a defective protocol unit or short to GND at the TxD input. Local Area 1 Local Area 2 Controller 1 Controller 2 RxD 1 TxD 1 RxD 2 Transceiver 2 Transceiver 1 Bus Line Figure 3 TxD 2 AES02410 CAN Network Example Data Sheet Version 1.4 5 2003-07-22 Final Data TLE 6254-2G Circuit Description Start Up Power Up Power Down Normal Mode NSTB 1 ENT ENT 1 0 INH high ENT NSTB ENT NSTB ENT 0 NSTB VCC INH high NSTB 0 or low 1 0 0 low Vbat Stand-By NSTB 0 ENT 0 INH high 0 NSTB ENT Wake-Up via CAN-bus or WK-Input; t > tWU(min) or t > tWK(min) 0 1 ENT 1 ENT t < th(min) Go to Sleep Mode NSTB ENT INH 0 1 float. Figure 4 NSTB ENT or VCC 1 RxD-Only NSTB 1 1 1 0 ENT = 1 t > th(min) Sleep Mode NSTB 0 ENT 0 INH float. State Diagram Data Sheet Version 1.4 6 2003-07-22 Final Data TLE 6254-2G Circuit Description 5.1 Operation Modes, Wake-Up In addition to the normal operation mode, the TLE 6254-2G offers a receive-only mode as well as two low power operation modes to save power during periods that do not require communication on the CAN bus: sleep mode, VBat stand-by mode (see Table 2 and Figure 4). Via the control input pins NSTB and ENT the operation modes are selected by the microcontroller. In the low power modes neither receiving nor transmitting of messages is possible. In sleep operation mode the lowest power consumption is achieved. In order to minimize the overall current consumption of the ECU (electronic control unit) the external voltage regulator (5 V supply) is deactivated by the INH output in this mode, when connected. For that purpose the INH output is switched to high impedance. In parallel the CANL line is pulled-up to the battery supply voltage via the RTL output and the pull-up paths at the input pins TxD and RxD are disabled from the internal supply. To enter the sleep operation mode the transition mode "Go-to-Sleep" has to be selected (Figure 4) for a minimum time th(min). After the minimum hold time th(min) the sleep mode can be actively selected. Otherwise the TLE 6254-2G will automatically fall in sleep mode because of the not powered microcontroller. On a wake-up request either by bus line activities or via the WAKE input, the transceiver is automatically set in VBat-stand-by mode. Now the voltage regulator (5 V supply) is enabled by the INH output. The WAKE input reacts to both, transition from high to low voltage level as well as the other way round. To avoid faulty wake-ups due to transients on the bus lines or the WAKE input circuitry respectively, a certain filter time is implemented. As soon as VCC is provided, the wake-up request is monitored on both, the NERR and RxD outputs, by setting them low. Upon this the microcontroller can activate the normal operation mode by setting the control inputs NSTB and ENT high. The VBat stand-by mode corresponds to the sleep mode, but a voltage regulator connected to the INH output will remain active. Wake-up requests via the WAKE pin or the bus lines are immediately reported to the microcontroller by setting RxD and NERR low. A power-on condition (VBAT pin is supplied) automatically switches the TLE 6254-2G to VBat stand-by mode. In the receive-only mode data on the CAN-bus are transvered to the RxD output, but both output stages, CANH as well as CANL are disabled. This means that data at the TxD input are not transmitted to the CAN bus. This mode is useful in combination to a dedicated network-management software that allows separate diagnosis for all nodes. A wake-up request in the receive-only mode is only reported at the RxD-output. The NERR output in this mode is used to indicate a battery fail condition. When entering the normal mode the Vbat-flag is reset and the NERR output becomes high again. This feature is useful e.g. when changing the ECU and therefore a presetting routine of the microcontroller has to be started. Data Sheet Version 1.4 7 2003-07-22 Final Data TLE 6254-2G Circuit Description If either of the supply voltages drops below the specified limits, the transceiver is automatically switched to VBat stand-by mode or power down mode respectively. . Table 2 Truth Table of the CAN Transceiver NSTB ENT Mode 0 0 VBAT stand-by 1) INH NERR Vbat active LOW wake-up interrupt if VCC is present mode RxD RTL switched to VBAT 0 0 sleep mode2) floating switched to VBAT 0 1 go to sleep command becomes floating switched to VBAT 1 0 Receive-only mode Vbat active LOW HIGH = recessive switched to VCC VBAT power-on receive data; 3) LOW = dominant flag receive data 1 1 normal mode Vbat active LOW bus error flag HIGH = recessive switched receive data; to VCC LOW = dominant receive data 1) Wake-up interrupts are released when entering normal operation mode. 2) If go to sleep command was used before, ENT may turn LOW as VCC drops, without affecting internal functions. 3) VBAT power-on flag will be reseted when entering normal operation mode. 5.2 Bus Failure Management The TLE 6254-2G detects the bus failures as described in Table 3, and automatically switches to a dedicated CANH or CANL single wire mode to maintain data transmission if necessary. Therefore, the device is equipped with one differential receiver and 4 single ended receivers, two for each bus line. To avoid false triggering by external RF influences the single wire modes are only activated after a certain delay time. As soon as the bus failure disappears the transceiver switches back to differential mode after another time delay. Bus failures are indicated in the normal operation mode by setting the NERR output low. The differential receiver threshold is typ. - 2.8 V. This ensures correct reception in the normal operation mode as well as in the failure cases 1, 2 and 4 with a noise margin as high as possible. For these failures, further failure management is not necessary. Detection of the failure cases 1, 2, 3a and 4 is only possible when the bus is dominant. Nevertheless, they are reported on the NERR output until transmission of the next CAN word on the bus begins. Data Sheet Version 1.4 8 2003-07-22 Final Data TLE 6254-2G Circuit Description When one of the bus failures 3, 5, 6, 6a and 7 is detected, the defective bus wire is disabled by switching off the affected bus termination and the respective output stage. A wake-up from sleep mode via the bus is possible either via a dominant CANH or CANL line. This ensures that a wake-up is possible even if one of the failures 1 to 7 occurs. Table 3 CAN bus-line failures (according to ISO 11519-2) failure # failure description 1 CANL line interrupted 2 CANH line interrupted 3 CANL line shorted to VBAT 3a CANL line shorted to VCC 4 CANH line shorted to GND: 5 CANL line shorted to GND: 6 CANH line shorted to VBAT 6a CANH line shorted to VCC 7 CANL line shorted to CANH line A current limiting circuit protects the CAN transceiver output stages from damage by short-circuit to positive and negative battery voltages. The CANH and CANL pins are protected against electrical transients which may occur in the severe conditions of automotive environments. The transmitter output stages generate the majority of the power dissipation. Therefore they are disabled if the junction temperature exceeds the maximum value. This effectively reduces power dissipation, and hence will lead to a lower chip temperature, while other parts of the IC can remain operating. In temperature shut-down condition the TLE 6254-2G is still able to receive CAN-bus messages. Data Sheet Version 1.4 9 2003-07-22 Final Data TLE 6254-2G Circuit Description 5.3 Application Hints Table 4 Not Needed Pins Pin Symbol Recommendation INH Leave open NERR Leave open NSTB Connect to VCC ENT Connect to VCC WAKE Connect to VBAT, if not possible connect to GND: increases current consumption by approx. 5 A The transceiver will stay in a present operating mode until a suitable condition disposes a state change. If not otherwise defined all conditions are AND-combined. The signals VCC and VBAT show if the supply is available (e.g. VCC = 1: VCC voltage is present). If at minimum one supply voltage is switched on, the start-up procedure begins (not figured). After a delay time the device changes to normal operating or stand-by mode. Data Sheet Version 1.4 10 2003-07-22 Final Data TLE 6254-2G Absolute Maximum Ratings 6 Absolute Maximum Ratings Parameter Input voltage at VBAT Logic supply voltage VCC Input voltage at TxD, RxD, NERR, NSTB and ENT Input voltage at CANH and CANL Transient voltage at CANH and CANL Input voltage at WAKE Output current at WAKE Input voltage at INH Input voltage at RTH and RTL Junction temperature Storage temperature Electrostatic discharge voltage at pin CANH, CANL, RTH, RTL,VBAT Electrostatic discharge voltage at any other pin Symbol Limit Values Unit Notes min. max. VS VCC VIN - 0.3 40 V - - 0.3 6 V - - 0.3 VCC + 0.3 V - VBUS VBUS VWK IWK VINH VRTH/L Tj Tstg Vesd - 40 40 V - - 150 100 V 1) - 40 V - - 5 mA - - 0.3 VBAT + 0.3 V - - 0.3 40 V - - 40 160 C - - 55 155 C - -4 4 kV 2) Vesd -2 2 kV 1) See ISO 7637 2) Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 k resistor. Note: Stresses above those listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Data Sheet Version 1.4 11 2003-07-22 Final Data TLE 6254-2G Operating Range 7 Operating Range Parameter Logic input voltage Battery input voltage Termination resistances at RTL and RTH Junction temperature Symbol Limit Values Unit Notes min. max. VCC VS RRTL/H 4.75 5.25 V - 6 27 V - 0.5 16 k - Tj - 40 150 C - Rthja - 120 K/W - TjSH 160 200 C 10C hyst. VWK - 0.3 27 V - Thermal Resistance Junction ambient Thermal Shutdown Junction temperature Wake Input Voltage Wake input voltage Note: In the operating range, the functions given in the circuit description are fulfilled. Data Sheet Version 1.4 12 2003-07-22 Final Data TLE 6254-2G Static Characteristics 8 Static Characteristics 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values Unit Notes min. typ. max. - 5.0 8.0 mA recessive; TxD = VCC - 6.5 10 mA dominant; TxD = 0 V; no load Supplies VCC, VS Supply current ICC Supply current (Receive-only mode) ICC - 3.5 5.0 mA Supply current (VBAT stand-by) ICC IS IS - 25 50 A - 40 60 A - 35 60 A Battery voltage for setting power-on flag VS 1.5 2.5 3.5 V Battery voltage low time for setting power-on flag tpw(on) Supply current (sleep operation mode) VCC = 5 V; VS = 12 V VCC = 0 V; VS = 12 V; VCC stand-by mode guaranteed by design 10 s Receive-only mode Receiver Output RxD and Error Detection Output NERR HIGH level output voltage (pin NERR) VOH HIGH level output voltage (pin RxD) VOH - VCC V I0 = - 100 A - VCC V I0 = - 250 A - 0.9 V I0 = 1.25 mA - 0.9 LOW level output voltage VOL Data Sheet Version 1.4 VCC VCC - 0.9 0 13 2003-07-22 Final Data TLE 6254-2G Static Characteristics 8 Static Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values min. typ. Unit Notes max. Transmission Input TxD, Not Stand-By NSTB and Enable Transfer ENT HIGH level input voltage VIH 0.7 x - VCC LOW level input voltage VIL - 0.3 VCC V - V - + 0.3 - 0.3 x VCC HIGH level input current (pins NSTB and ENT) IIH - 30 60 A Vi = 4 V LOW level input current (pins NSTB and ENT) IIL 0.7 6 - A Vi = 1 V HIGH level input current (pin TxD) IIH - 150 - 40 - 10 A Vi = 4 V LOW level input current (pin TxD) IIL - 600 - 200 - 40 A Vi = 1 V 2.75 - 4.5 V - IIL VWK(min) -3 -2 -1 A - 2.2 3.2 3.9 V VNSTB = 0 V HIGH level voltage drop VH = VS - VINH VH - 0.3 0.8 V IINH = - 0.18 mA; Leakage current IINH,lk - 5.0 - 5.0 A sleep operation mode; VINH = 0 V Forced battery voltage VCC stand-by mode (fail safe) Wake-up Input WAKE Input current Wake-up threshold voltage Inhibit Output INH Data Sheet Version 1.4 14 2003-07-22 Final Data TLE 6254-2G Static Characteristics 8 Static Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values min. typ. max. Unit Notes Bus Lines CANL, CANH Differential receiver recessive-to-dominant threshold voltage VdRxD(rd) - 2.8 - 2.5 - 2.2 V VCC = 5.0 V Differential receiver dominant-to-recessive threshold voltage VdRxD(dr) - 3.2 - 2.9 - 2.6 V VCC = 5.0 V CANH recessive output voltage VCANH,r 0.10 0.15 0.30 V TxD = VCC; RRTH < 4 k CANL recessive output voltage VCANL,r VCC - - V TxD = VCC; RRTL < 4 k CANH dominant output voltage VCANH,d VCC VCC VCC V - 1.4 - 1.0 TxD = 0 V; ICANH = - 40 mA CANL dominant output voltage VCANL,d - 1.0 1.4 V TxD = 0 V; ICANL = 40 mA CANH output current ICANH - 110 - 80 - 50 mA VCANH = 0 V; - 0.2 TxD = 0 V CANL output current ICANL -5 0 5 A sleep operation mode; VCANH = 12 V 50 80 110 mA VCANL = 5 V; TxD = 0 V -5 Data Sheet Version 1.4 0 15 5 A sleep operation mode; VCANL = 0 V; VS = 12 V 2003-07-22 Final Data TLE 6254-2G Static Characteristics 8 Static Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values Unit Notes min. typ. max. Voltage detection Vdet(th) threshold for short-circuit to battery voltage on CANH and CANL 6.5 7.3 8.0 V - Vdet(th) Voltage detection threshold for short-circuit to battery voltage on CANH VBAT VBAT VBAT V - 2.5 -2 -1 stand-by/ sleep operation mode CANH wake-up voltage threshold VCANH,wu 1.2 1.9 2.7 V - CANL wake-up voltage threshold VCANL,wu 2.2 3.1 3.9 V - Wake-up voltage threshold hysteresis Vwu - - V Vwu = VCANL,wu - CANH single-ended receiver threshold VCANH 1.6 2.1 2.6 V failure cases 3, 5 and 7 CANL single-ended receiver threshold VCANL 2.4 2.9 3.4 V failure case 6 and 6a CANL leakage current ICANL,lk -5 0 5 A CANH leakage current ICANH,lk -5 0 5 A VCC = 0 V; VS = 0 V; VCANL = 12 V; Tj < 85 C VCC = 0 V; VS = 0 V; VCANH = 5 V; Tj < 85 C Data Sheet Version 1.4 0.2 VCANH,wu 16 2003-07-22 Final Data TLE 6254-2G Static Characteristics 8 Static Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values min. typ. max. Unit Notes Termination Outputs RTL, RTH RTL to VCC switch-on resistance RRTL - 20 95 Io = - 10 mA RTL output voltage VoRTL VCC VCC - V - 1.0 - 0.7 |Io| < 1 mA; VCC stand-by mode RTL to BAT switch series RoRTL resistance 5 15 28 k VBAT stand-by or RTH to ground switch-on RRTH resistance - 20 95 Io = 10 mA - 0.7 1.0 V Io = 1 mA; RTH output voltage VoRTH sleep operation mode low power mode RTH pull-down current IRTH,pd 40 75 120 A failure cases 6 and 6a RTL pull-up current IRTL,pu - 120 - 75 - 40 A failure cases 3, 3a, 5 and 7 RTH leakage current IRTH,lk -5 0 5 A RTL leakage current IRTL,lk -5 0 5 A VCC = 0 V; VS = 0 V; VRTH = 5 V; Tj < 85 C VCC = 0 V; VS = 0 V; VRTL = 12 V; Tj < 85 C Data Sheet Version 1.4 17 2003-07-22 Final Data TLE 6254-2G Dynamic Characteristics 9 Dynamic Characteristics 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Symbol Limit Values min. typ. max. Unit Notes CANH and CANL bus output transition time recessive-to-dominant trd 0.6 1.2 2.1 s 10% to 90%; C1 = 10 nF; C2 = 0; R1 = 100 CANH and CANL bus output transition time dominant-to-recessive tdr 0.3 0.6 1.3 s 10% to 90%; C1 = 1 nF; C2 = 0; R1 = 100 Minimum dominant time for wake-up via CANL or CANH twu(min) 15 25 38 s stand-by modes; VS = 12 V Minimum wake-up time on tWK(min) pin WAKE 15 25 50 s Low power modes; VS = 12 V 30 45 80 s - Failure case 6a detection time 2 4.8 6 ms - Failure cases 5, 6, 6a, 7 recovery time 30 45 80 s - Failure cases 3 recovery time 250 500 750 s - Failure cases 5, 7 detection time 1.0 2.0 4.0 ms - Failure cases 5 detection time 0.4 1.0 2.4 ms stand-by modes; VS = 12 V Failure cases 6, 6a, 7 detection time 0.8 4.0 8.0 ms stand-by modes; VS = 12 V Failure cases 5, 6, 6a, 7 recovery time 0.4 1.0 2.4 ms stand-by modes; VS = 12 V Failure cases 3, 6 detection time Data Sheet Version 1.4 tfail 18 2003-07-22 Final Data TLE 6254-2G Dynamic Characteristics 9 Dynamic Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Propagation delay TxD-to-RxD LOW (recessive to dominant) Symbol tPD(L) Limit Values min. typ. max. - 1.5 2.1 Unit Notes s C1 = 100 pF; C2 = 0; R1 = 100 ; no failures and bus failure cases 1, 2, 3a, 4 - 1.7 2.4 s C1 = C2 = 3.3 nF; R1 = 100 ; no bus failure and failure cases 1, 2, 3a, 4 - 1.8 2.5 s C1 100 pF; C2 = 0; R1 = 100 ; bus failure cases 3, 5, 6, 6a, 7 - 2.0 2.6 s C1 = C2 = 3.3 nF; R1 =100 ; bus failure cases 3, 5, 6, 6a, 7 Propagation delay TxD-to-RxD HIGH (dominant to recessive) tPD(H) - 1.5 2.0 s C1 = 100 pF; C2 = 0; R1 =100 ; no failures and bus failure cases 1, 2, 3a, 4 - 2.5 3.5 s C1 = C2 = 3.3 nF; R1 = 100 ; no bus failure and failure cases 1, 2, 3a, 4 Data Sheet Version 1.4 19 2003-07-22 Final Data TLE 6254-2G Dynamic Characteristics 9 Dynamic Characteristics (cont'd) 4.75 V VCC 5.25 V; 6 V VS 27 V; normal operation mode; - 40 Tj + 125 C (unless otherwise specified). All voltages are defined with respect to ground. Positive current flowing into the IC. Parameter Propagation delay TxD-to-RxD HIGH (dominant to recessive) Symbol tPD(H) Limit Values min. typ. max. - 1.0 2.1 Unit Notes s C1 100 pF; C2 = 0; R1 = 100 ; bus failure cases 3, 5, 6, 6a, 7 - 1.5 2.6 s C1 = C2 = 3.3 nF; R1 = 100 ; bus failure cases 3, 5, 6, 6a, 7 15 25 50 s - ne Edge-count difference (falling edge) between CANH and CANL for failure cases 1, 2, 3a, 4 detection NERR becomes LOW - 4 - - - Edge-count difference (rising edge) between CANH and CANL for failure cases 1, 2, 3a, 4 recovery - 2 - - - 1.3 2.0 3.5 ms - Minimum hold time to go sleep command TxD permanent dominant disable time Data Sheet Version 1.4 th(min) tTxD 20 2003-07-22 Final Data TLE 6254-2G Test and Application 10 Test and Application +5V 7 6 5 4 3 2 1 WAKE ENT NSTB NERR RxD TxD INH TLE 6254-2G RTH RTL 8 9 20 pF CAN Transceiver V CC CANH CANL GND V BAT 10 11 12 13 14 + 12 V R1 R1 C1 C2 C1 CAN Bus Substitute 1 R 1 = 100 C 1,2 = 10 nF R1 R1 CK C K = 1 nF CK Schaffner Generator CAN Bus Substitute 2 Figure 5 AES02423 Test Circuits For isolated testing the CAN Bus Substitute 1 is connected to the CAN Transceiver (see Figure 5). The capacitors C1-2 simulate the cable. Allowed minimum values of the termination resistors RRTH and RRTL are 500 . Electromagnetic interference on the bus lines is simulated by switching to CAN Bus Substitute 2. The waves of the applied transients will be in accordance with ISO 7637 part 1, test 1, test pulses 1, 2, 3a and 3b. Data Sheet Version 1.4 21 2003-07-22 Final Data TLE 6254-2G Test and Application Vbat CAN bus choke TLE 6254-2G *) 11 CANH RxD 3 12 CANL TxD 2 8 RTH ENT 6 9 RTL NSTB 5 14 VS NERR 4 P with On-Chip CANmodule RRTH RRTL 100 nF e.g. C50C, C164C WK 7 VCC 10 k INH 1 10 GND GND 100 nF INH VCC e.g. TLE 4263 TLE 4299 TLE 4271 TLE 4276 VS 22 F GND 100 nF 22 F *) optional, according to car manufacturers requirements Figure 6 Application Circuit Data Sheet Version 1.4 22 2003-07-22 Final Data TLE 6254-2G Package Outlines 11 Package Outlines GPS09330 P-DSO-14-13 (Plastic Dual Small Outline Package) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information" SMD = Surface Mounted Device Data Sheet Version 1.4 23 Dimensions in mm 2003-07-22 Final Data TLE 6254-2G Edition 2003-07-22 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 Munchen, Germany (c) Infineon Technologies AG 2003. All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Data Sheet Version 1.4 24 2003-07-22