NCV7341 High Speed Low Power CAN Transceiver http://onsemi.com PIN ASSIGNMENT TxD 1 14 STB GND 2 13 CANH VCC 3 12 RxD 4 VIO Features * Ideal Passive Behavior when Supply Voltage is Removed * Separate VIO Supply for Digital Interface Allowing Communication * * * * * * * * * * * * * to CAN Controllers and Microcontrollers with Different Supply Levels Fully Compatible with the ISO 11898 Standard High Speed (up to 1 Mb) Very Low Electromagnetic Emission (EME) VSPLIT Voltage Source for Stabilizing the Recessive Bus Level if Split Termination is Used (Further Improvement of EME) Differential Receiver with High Common-Mode Range for Electromagnetic Immunity (EMI) Up to 110 Nodes can be Connected in Function of the Bus Topology Transmit Data (TxD) Dominant Time-out Function Bus Error Detection with Version NCV7341D20 Bus Pins Protected Against Transients in Automotive Environments Bus Pins and Pin VSPLIT Short-Circuit Proof to Battery and Ground Thermally Protected NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls These are Pb-Free Devices* EN INH NCV7341 The NCV7341 CAN transceiver is the interface between a controller area network (CAN) protocol controller and the physical bus and may be used in both 12 V and 24 V systems. The transceiver provides differential transmit capability to the bus and differential receive capability to the CAN controller. Due to the wide common-mode voltage range of the receiver inputs, the NCV7341 is able to reach outstanding levels of electromagnetic susceptibility (EMS). Similarly, extremely low electromagnetic emission (EME) is achieved by the excellent matching of the output signals. The NCV7341 is a new addition to the ON Semiconductor CAN high-speed transceiver family and offers the following additional features: CANL 11 VSPLIT 5 10 VBAT 6 9 7 8 (Top View) WAKE ERR PC20060727.1 ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 17 of this data sheet. Typical Applications * Automotive * Industrial Networks *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. (c) Semiconductor Components Industries, LLC, 2009 May, 2009 - Rev. 4 1 Publication Order Number: NCV7341/D NCV7341 Table 1. TECHNICAL CHARACTERISTICS Max Max Unit VCC Symbol Supply Voltage for the Core Circuitry Parameter Condition 4.75 5.25 V VIO Supply Voltage for the Digital Interface 2.8 5.25 V VEN DC Voltage at Pin EN -0.3 VIO + 0.3 V VSTB DC Voltage at Pin STB -0.3 VIO + 0.3 V VTxD DC Voltage at Pin TxD -0.3 VIO + 0.3 V VRxD DC Voltage at Pin RxD -0.3 VIO + 0.3 V VERR DC Voltage at Pin ERR -0.3 VIO + 0.3 V VCANH DC Voltage at Pin CANH 0 < VCC < 5.25 V; No Time Limit -58 +58 V VCANL DC Voltage at Pin CANL 0 < VCC < 5.25 V; No Time Limit -58 +58 V VSPLIT DC Voltage at Pin VSPLIT 0 < VCC < 5.25 V; No time Limit -58 +58 V VO(dif)(bus_dom) Differential Bus Output Voltage in Dominant State 42.5 W < RLT < 60 W 1.5 3 V CMrange Input Common-Mode Range for Comparator Guaranteed Differential Receiver Threshold and Leakage Current -35 +35 V Cload Load Capacitance on IC Outputs 15 pF tpd(rec-dom) Propagation Delay TxD to RxD See Figure 6 90 230 ns tpd(dom-rec) Propagation Delay TxD to RxD See Figure 6 90 245 ns TJ Junction Temperature -40 150 C ESDHBM ESD Level, Human Body Model -4 -3 4 3 kV Pins CANH, CANL, VSPLIT, WAKE, VBAT other Pins http://onsemi.com 2 NCV7341 BLOCK DIAGRAM VIO 5 VIO INH VBAT VCC 10 7 3 POR 13 TxD 1 Timer Thermal shutdown 6 EN CANH VCC 11 V SPLIT VSPLIT "Active" STB Level shifter II II II II II VIO ERR 12 Driver control 14 Digital Control Block Wake -up Filter CANL Rec Low Power 8 Rec Clock 4 VIO "Active" + WAKE VCC/2 26 kW RxD 26 kW VIO 2 - 9 NCV7341 PC20060921.1 Figure 1. Block Diagram http://onsemi.com 3 GND NCV7341 TYPICAL APPLICATION SCHEMATICS OUT 100 nF x mF* VCC 1 EN CAN controller 5 6 STB 14 RxD VBAT 10 nF Vio TxD IN 1 kW VCC INH VBAT 3 7 10 WAKE 9 2.7 kW CANH 13 N C V7341 100nF 5V-Reg 4 11 VSPLIT 180 kW 10 nF RLT = 60 W CAN BUS CLT= 4.7 nF ERR 8 12 2 GND CANL RLT = 60 W GND Note (*): Value depending on regulator PC20060921.4 Figure 2. Application Diagram with a 5V CAN Controller x mF* OUT 3V-reg IN OUT 100 nF x mF* 100 nF Vcc 5 3 10 9 RxD 14 4 NCV7341 STB 13 11 WAKE 2.7 kW CANH VSPLIT 10 nF RLT = 60 W CAN BUS CLT = 4.7 nF ERR 8 12 2 GND 180 kW INH VBAT 7 EN CAN controller VBAT 10 nF 1 6 IN 1 kW Vcc Vio TxD 5V-reg CANL RLT = 60 W GND Note (*): Value depending on regulator PC20060921.4 Figure 3. Application Diagram with a 3V CAN Controller http://onsemi.com 4 NCV7341 PIN DESCRIPTION 1 14 STB GND 2 13 CANH VCC 3 12 RxD 4 VIO EN INH NCV7341 TxD CANL 11 VSPLIT 5 10 VBAT 6 9 7 8 WAKE ERR PC20060727.1 Figure 4. NCV7340 Pin Assignment Table 2. PIN DESCRIPTION Pin Name Description 1 TxD Transmit data input; low level = dominant on the bus; internal pull-up current 2 GND Ground 3 VCC Supply voltage for the core circuitry and the transceiver 4 RxD Receive data output; dominant bus => low output 5 VIO Supply voltage for the CAN controller interface 6 EN Enable input; internal pull-down current 7 INH High voltage output for controlling external voltage regulators 8 ERR Digital output indicating errors and power-up; active low 9 WAKE 10 VBAT Local wake-up input 11 VSPLIT Common-mode stabilization output 12 CANL Low-level CAN bus line (low in dominant) 13 CANH High-level CAN bus line (high in dominant) 14 STB Battery supply connection Stand-by mode control input; internal pull-down current http://onsemi.com 5 NCV7341 FUNCTIONAL DESCRIPTION OPERATING MODES Operation modes of NCV7341 are shown in Figures 5 and in Table 3. SLEEP MODE STB = H and EN = L and VCC/VIO undervoltage flag reset RECEIVE ONLY MODE STB = L and flags set STB = H and EN = H and VCC/VIO undervoltage flag reset STB = H and EN = H STB = H and EN = L NORMAL MODE STB = H and EN = H flags reset and t > t h(min) STB = H and EN = L STB = H and EN = L STB = H and EN = H STB = L and (EN = L or flags set) STB = L and EN = H STB = L and EN = H and flags reset STB = L and EN = L STANDBY MODE POWER UP STB = L and EN = H and flags reset GOTO SLEEP MODE STB = L and (EN = L or flags set) LEGEND "Flags set" : "Flags reset" : PC20060921.2 wake-up or power-up not (wake-up or power-up) Figure 5. Operation Modes http://onsemi.com 6 NCV7341 Table 3. OPERATION MODES Conditions Transceiver Behavior Pin STB Pin EN VCC/VIO Undervoltage Flag X X Set X X Sleep Floating Reset Set Set Standby High Reset If in sleep, then no change Floating otherwise stand-by High Low Low Low High Reset Reset VBAT Undervoltage Flag Power-up or Wakeup Flag Operating Mode Pin INH Reset Reset High Low Reset Reset High High Reset Reset Normal Mode Set Stand-by High Reset If in sleep, then no change Floating otherwise stand-by High Set Stand-by High Reset If in sleep, then no change Floating otherwise go-to-sleep High X Receive-only High X Normal High puts pin EN to High and STB Pin to Low. If the logical state of Pins EN and STB is kept unchanged for minimum period of th(min) and neither a wake-up nor a power-up event occur during this time, the transceiver enters sleep mode. While in go-to-sleep mode, the transceiver behaves identically to stand-by mode. In Normal mode, the transceiver is able to communicate via the bus lines. The CAN controller can transmit data to the bus via TxD pin and receive data from the bus via Pin RxD. The bus lines (CANH and CANL) are internally biased to VCC/2 via the common-mode input resistance. Pin VSPLIT is also providing voltage VCC/2 which can be further used to externally stabilize the common mode voltage of the bus - see Figure 2 and Figure 3. Pin INH is active (pulled high) so that the external regulators controlled by INH Pin are switched on. Sleep Mode Sleep mode is a low-power mode in which the consumption is further reduced compared to stand-by mode. Sleep mode can be entered via go-to-sleep mode or in case an undervoltage on either VCC or VIO occurs for longer than the under-voltage detection time. The transceiver behaves identically to standby mode, but the INH Pin is deactivated (left floating) and the external regulators controlled by INH Pin are switched off. In this way, the VBAT consumption is reduced to a minimum. The device will leave sleep mode either by a wake-up event (in case of a CAN bus wake-up or via Pin WAKE) or by putting Pin STB high (as long as an under-voltage on VCC or VIO is not detected). Receive-Only Mode In Receive-only mode, the CAN transmitter is disabled. The CAN controller can still receive data from the bus via RxD Pin as the receiver part remains active. Equally to normal mode, the bus lines (CANH and CANL) are internally biased to VCC/2 and Pin VSPLIT is providing voltage VCC/2. Pin INH is also active (pulled high). Standby Mode Standby mode is a low-power mode. Both the transmitter and the receiver are disabled and a very low-power differential receiver monitors the CAN bus activity. Bus lines are biased internally to ground via the common mode input resistance and Pin VSPLIT is high-impedant (floating). A wake-up event can be detected either on the CAN bus or on the WAKE Pin. A valid wake-up is signaled on pins ERR and RxD. Pin INH remains active (pulled high) so that the external regulators controlled by INH Pin are switched on. Internal Flags The transceiver keeps several internal flags reflecting conditions and events encountered during its operation. Some flags influence the operation mode of the transceiver (see Figure 5 and Table 3). Beside the undervoltage and the TxD dominant timeout flags, all others can be read by the CAN controller on Pin ERR. Pin ERR signals internal flags depending on the operation mode of the transceiver. An overview of the flags and their visibility on Pin ERR is given in Table 4. Because the ERR Pin uses negative logic, it will be pulled low if the signaled flag is set and will be pulled high if the signaled flag is reset. Go-To-Sleep Mode Go-To-Sleep mode is an intermediate state used to put the transceiver into sleep mode in a controlled way. Go-To-Sleep mode is entered when the CAN controller http://onsemi.com 7 NCV7341 Table 4. INTERNAL FLAGS AND THEIR VISIBILITY Internal Flag Set Condition VCC/VIO Undervoltage VCC < VCC(SLEEP) longer than tUV(VCC) or VIO < VIO(SLEEP) longer than tUV(VIO) At wake-up or power-up No VBAT Undervoltage VBAT < VBAT(STB) When VBAT recovers No Powerup VBAT rises above VBAT(PWUP) (VBAT connection to the transceiver) When normal mode is entered In receive-only mode. Not going from normal mode When remote or local wake-up is detected At power-up or when normal mode is entered or when VCC/VIO undervoltage flag is set Both on ERR and RxD (both pulled to low). In go-to-sleep, standby and sleep mode. Local Wake-up When local wake-up is detected (i.e.via pin WAKE) At power-up or when leaving normal mode In normal mode before 4 consecutive dominant symbols are sent. Then ERR pin becomes High again Failure Pin TxD clamped low or overtemperature When entering normal mode or when RxD is Low while TxD is high (provided all failures disappeared) Overtemperature condition observable in receive-only mode entered from normal mode Bus Failure (NCV7341D20) One of the bus lines shorted to ground or supply during four consecutive transmitted dominants No bus line short (to ground or supply) detected during four consecutive dominant bit transmissions In normal mode Wake-up Reset Condition VCC/VIO Undervoltage Flag Visibility on Pin ERR is reset at power-up or when VCC/VIO undervoltage occurs or when Normal mode is entered. The VCC/VIO undervoltage flag is set if VCC supply drops below VCC(sleep) level for longer than tUV(VCC) or VIO supply drops below VIO(sleep) level for longer than tUV(VIO). If the flag is set, the transceiver enters sleep mode. After a waiting time identical to the undervoltage detection times tUV(VCC) and tUV(VIO), respectively, the flag can be reset either by a valid wake-up request or when the powerup flag is set. During this waiting time, the wakeup detection is blocked. Local wake-up Flag This flag is set when a valid wake-up request through WAKE Pin occurs. It can be observed on the ERR Pin in normal mode. It can only be set when the powerup flag is reset. The local wake-up flag is reset at powerup or at leaving Normal mode. Failure Flag The failure flag is set in one of the following situations: * TxD Pin is Low (i.e. dominant is requested by the CAN controller) for longer than tdom(TxD) - Under this condition, the transmitter is disabled so that a bus lockup is avoided in case of an application failure which would drive permanent dominant on the bus. The transmitter remains disabled until the failure flag is reset. * Overtemperature - If the junction temperature reaches TJ(SD), the transmitter is disabled in order to protect it from overheating and the failure flag is set. The transmitter remains disabled until the failure flag is reset. The failure flag is reset when Normal mode is entered or when TxD pin is High while RxD pin is Low. In case of overtemperature, the failure flag is observable on pin ERR. VBAT Under-voltage Flag The flag is set when VBAT supply drops below VBAT(STB) level. The transceiver will enter the standby mode. The flag is reset when VBAT supply recovers. The transceiver then enters the mode defined by inputs STB and EN. Power-up Flag This flag is set when VBAT supply recovers after being below VBAT(PWUP) level, which corresponds to a connection of the transceiver to the battery. The VCC/VIO undervoltage flag is cleared so that the transceiver cannot enter the Go-to-sleep Mode, ensuring that INH Pin is high and the external voltage regulators are activated at the battery connection. In Receive-only mode, the powerup flag can be observed on the ERR Pin. The flag is reset when Normal mode is entered. Wake-up Flag Bus Failure Flag (NCV7341D20) This flag is set when the transceiver detects a valid wake-up request via the bus or via the WAKE Pin. Setting the wake-up flag is blocked during the waiting time of the VCC/VIO undervoltage flag. The wake-up flag is immediately propagated to Pins ERR and RxD - provided that supplies VCC and VIO are available. The wake-up flag The transmitter of the NCV7341D20 device version allows bus failure detection. During dominant bit transmission, a short of the CANH or CANL line to ground or supply (VCC, VBAT or other) is internally detected. If the short circuit condition lasts for four consecutive dominant http://onsemi.com 8 NCV7341 A local wake-up is detected after a change of state (High to Low, or Low to High) on WAKE Pin which is stable for at least tWAKE. To increase the EMS level of the WAKE Pin, an internal current source is connected to it. If the state of the WAKE Pin is stable at least for tWAKE, the direction of the current source follows (pulldown current for Low state, pullup current for High state). It is recommended to connect Pin WAKE either to GND or VBAT if it's not used in the application. transmissions, an internal bus failure flag is set and made immediately visible through a Low level on the ERR pin. The transmission and reception circuitry continues to function. When four consecutive dominant transmissions succeed without a bus line short being detected, the internal bus failure flag is reset and ERR pin is released to High level. Split Circuit The VSPLIT Pin is operational only in normal and receive-only modes. It is floating in standby and sleep modes. The VSPLIT can be connected as shown in Figure 2 and Figure 3 and its purpose is to provide a stabilized DC voltage of VCC/2 to the bus avoiding possible steps in the common-mode signal, therefore reducing EME. These unwanted steps could be caused by an unpowered node on the network with excessive leakage current from the bus that shifts the recessive voltage from its nominal VCC/2 level. Fail Safe Features Fail safe behavior is ensured by the detection functions associated with the internal flags. Furthermore, a current-limiting circuit protects the transmitter output stage from damage caused by accidental short circuit to either positive or negative supply voltage, although power dissipation increases during this fault condition. The Pins CANH and CANL are protected from automotive electrical transients (according to ISO 7637; see Figure 9). Pins TxD is pulled high and Pins STB and EN are pulled low internally should the input become disconnected. Pins TxD, STB, EN and RxD will be floating, preventing reverse supply should the VIO supply be removed. Wake-up The transceiver can detect wake-up events in stand-by, go-to-sleep and sleep modes. Two types of wake-up events are handled - remote wake-up via the CAN bus or a local wake-up via the WAKE pin. A valid remote wake-up is recognized after two dominant states of the CAN bus of at least tdom, each of them followed by a recessive state of at least trec. http://onsemi.com 9 NCV7341 ELECTRICAL CHARACTERISTICS Definitions Absolute Maximum Ratings All voltages are referenced to GND (Pin 2). Positive currents flow into the IC. Sinking current means the current is flowing into the pin; sourcing current means the current is flowing out of the pin. Stresses above those listed in the following table may cause permanent device failure. Exposure to absolute maximum ratings for extended periods may affect device reliability. Table 5. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Conditions Min. Max. Unit VBAT Supply voltage -0.3 58 V VCC Supply voltage -0.3 +7 V VIO Supply voltage -0.3 +7 V VCANH DC voltage at pin CANH 0 < VCC < 5.25 V; no time limit -58 +58 V VCANL DC voltage at pin CANL 0 < VCC < 5.25 V; no time limit -58 +58 V DC voltage between bus pins CANH and CANL 0 < VCC < 5.25 V; no time limit -58 +58 V DC voltage at pin VSPLIT 0 < VCC < 5.25 V; no time limit -58 +58 V DC voltage at pin INH -0.3 VBAT+0.3 V DC voltage at pin WAKE -0.3 58 V VCANL-VCANH VSPLIT VINH VWAKE VTxD DC voltage at pin TxD -0.3 7 V VRxD DC voltage at pin RxD -0.3 VIO + 0.3 V VSTB DC voltage at pin STB -0.3 7 V VEN DC voltage at pin EN -0.3 7 V VERR DC voltage at pin ERR -0.3 VIO + 0.3 V Vtran(CANH) Transient voltage at pin CANH (Note 1) -300 +300 V Vtran(CANL) Transient voltage at pin CANL (Note 1) -300 +300 V Transient voltage at pin VSPLIT (Note 1) -300 +300 V Electrostatic discharge voltage at pins intended to be wired outside of the module (CANH, CANL, VSPLIT, VBAT, WAKE) (Note 2) (Note 4) -4 -500 4 500 kV V Electrostatic discharge voltage at all other pins (Note 2) (Note 4) -3 -500 3 500 kV V Static latch-up at all pins (Note 3) 120 mA Vtran(VSPLIT) Vesd(CANL/CANH/ VSPLIT, VBAT, WAKE) Vesd Latch-up Tstg Storage temperature -50 +150 C Tamb Ambient temperature -50 +125 C Tjunc Maximum junction temperature -50 +180 C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Applied transient waveforms in accordance with ISO 7637 part 3, test pulses 1, 2, 3a, and 3b (see Figure 9). 2. Standardized human body model electrostatic discharge (ESD) pulses in accordance to MIL883 method 3015.7. 3. Static latch-up immunity: Static latch-up protection level when tested according to EIA/JESD78. 4. Standardized charged device model ESD pulses when tested according to EOS/ESD DS5.3-1993. http://onsemi.com 10 NCV7341 Operating Conditions Operating conditions define the limits for functional operation, parametric characteristics and reliability specification of the device. Functionality of the device is not guaranteed outside the operating conditions. Table 6. OPERATING RANGES Symbol Parameter Conditions Min Max Unit 5.0 50 V 6.0 50 V 4.75 5.25 V VBAT Supply Voltage VBAT_SLEEP Supply Voltage in the Sleep Mode VCC Supply Voltage VIO Supply Voltage 2.8 5.25 V VCANH DC Voltage at Pin CANH Receiver Function Guaranteed -35 +35 V VCANL DC Voltage at Pin CANL Receiver Function Guaranteed -35 +35 V VCANL-VCANH DC Voltage Between Bus Pins CANH and CANL Receiver Function Guaranteed -35 +35 V VSPLIT DC Voltage at Pin VSPLIT Leakage and Current Limitation are Guaranteed -35 +35 V VINH DC Voltage at Pin INH -0.3 VBAT + 0.3 V VWAKE DC Voltage at Pin WAKE -0.3 VBAT + 0.3 V VTxD DC Voltage at Pin TxD -0.3 VIO + 0.3 V VRxD DC Voltage at Pin RxD -0.3 VIO + 0.3 V VSTB DC Voltage at Pin STB -0.3 VIO + 0.3 V VEN DC Voltage at Pin EN -0.3 VIO + 0.3 V DC Voltage at Pin ERR -0.3 VIO + 0.3 V 15 pF VERR CLOAD (Note 1) Capacitive Load on Digital Outputs (Pins RxD and ERR) TA Ambient Temperature -40 +125 C TJ Maximum Junction Temperature -40 +150 C 1. In the sleep mode, all relevant parameters are guaranteed only for VBAT > 6 V. For VBAT between 5 V and 6 V, no power-on-reset will occur and the functionality is also guaranteed, but some parameters might get slightly out of the specification - e.g. the wakeup detection thresholds. Table 7. THERMAL CHARACTERISTICS Symbol Parameter Conditions Value Unit Rth(vj-a) Thermal Resistance from Junction-to-Ambient in SOIC-14 Package 1S0P PCB 128 K/W Rth(vj-a) Thermal Resistance from Junction-to-Ambient in SOIC-14 Package 2S2P PCB 70 K/W http://onsemi.com 11 NCV7341 Characteristics The characteristics of the device are valid for operating conditions defined in Table 7 and the bus lines are considered to be loaded with RLT = 60 W, unless specified otherwise. Table 8. DC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit SUPPLY (PIN VBAT) VBAT(STB) Level for Setting VBAT Undervoltage Flag VCC = 5 V 2.75 3.3 4.5 V VBAT(PWUP) Level for Setting Powerup Flag VCC = 0 V 2.75 3.3 4.5 V IVBAT VBAT Current Consumption in Normal and Receive-Only Modes INH and WAKE Not Loaded 1.0 10 40 mA VBAT Current Consumption in Standby and Go-to-Sleep Modes. The total supply current is drawn partially from VBAT and partially from VCC. VVCC > 4.75 V, VVIO > 2.8 V VINH = VWAKE = VVBAT = 12 V Tamb < 100C 18 mA 22.5 mA VBAT Current Consumption in Sleep Mode. The supply current is drawn from VBAT only. VVCC = VINH = VVIO = 0 V VWAKE = VVBAT = 12 V Tamb < 100C 35 mA VCC(SLEEP) VCC Level for Setting VCC/VIO Undervoltage Flag VBAT = 12 V IVCC VCC Current Consumption in Normal or Receive-Only Mode VVCC > 4.75 V, VVIO > 2.8 V VINH = VWAKE = VVBAT = 12 V VVCC = VINH = VVIO = 0 V VWAKE = VVBAT = 12 V 8.0 12 10 20 50 mA 2.75 3.3 4.5 V Normal Mode: VTxD = 0 V, i.e. Dominant 25 55 80 mA Normal Mode: VTxD = VIO, i.e. Recessive (or Receive-Only Mode) 2.0 6.0 10 mA 17.5 mA 19.5 mA 1.0 mA SUPPLY (PIN VCC) VCC Current Consumption in Standby and Go-to-Sleep Mode. The total supply current is drawn partially from VBAT and partially from VCC. Tamb < 100C VCC Current Consumption in Sleep Mode Tamb < 100C 6.5 12 0.2 0.5 2.0 mA 0.9 1.6 2.0 V 100 350 1000 mA 0 0.2 1.0 mA 1.0 mA SUPPLY (PIN VIO) VIO(SLEEP) VIO Level for Setting VCC/VIO Undervoltage Flag IVIO VIO Current Consumption in Normal or Receive-Only Mode VIO Current Consumption in Standby or Sleep Mode Normal Mode: VTxD = 0V, i.e. Dominant Normal Mode: VTxD = VIO, i.e. Recessive (or Receive-Only mode) Tamb < 100C 0 0 5.0 mA V TRANSMITTER DATA INPUT (PIN TxD) VIH High-Level Input Voltage Output Recessive 0.7VVIO - VIO + 0.3 VIL Low-Level Input Voltage Output Dominant -0.3 - 0.3VVIO V IIH High-Level Input Current VTxD = VVIO -5.0 0 +5.0 mA http://onsemi.com 12 NCV7341 Table 8. DC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit TRANSMITTER DATA INPUT (PIN TxD) IIL Low-Level Input Current VTxD = 0.3 VVIO -70 -250 -500 mA Ci Input Capacitance Not Tested 1.0 5.0 10 pF STANDBY AND ENABLE INPUTS (PINS STB AND EN) VIH High-Level Input Voltage 0.7VVIO - VIO + 0.3 V VIL Low-Level Input Voltage -0.3 - 0.3VVIO V IIH High-Level Input Current VSTB = VEN = 0.7VVIO 1.0 5.0 10 mA IIL Low-Level Input Current VSTB = VEN = 0 V -0.5 0 5.0 mA Ci Input Capacitance 1.0 5.0 10 pF RECEIVER DATA OUTPUT (PIN RxD) IOH High-Level Output Current VRxD = VVIO - 0.4 V VVIO = VVCC -1.0 -3.0 -6.0 mA IOL Low-Level Output Current VRxD = 0.4 V VTxD = 0 V Bus is Dominant 2.0 5.0 12 mA FLAG INDICATION OUTPUT (PIN ERR) IOH High-Level Output Current VERR = VVIO - 0.4 V VVIO = VVCC -4.0 -20 -50 mA IOL Low-Level Output Current VERR = 0.4 V 100 200 350 mA LOCAL WAKE-UP INPUT (PIN WAKE) IIH High-Level Input Current VWAKE = VVBAT - 1.9 V -1.0 -5.0 -10 mA IIL Low-Level Input Current VWAKE = VVBAT - 3.1 V 1.0 5.0 10 mA Vthreshold Threshold of the Local Wake-up Comparator Sleep or Standby Mode VVBAT - 3V VVBAT - 2.5 V VVBAT - 2V V 50 200 800 mV 0 - 5.0 mA 0 - 1.0 mA INHIBIT OUTPUT (PIN INH) VHDROP High Level Voltage Drop ILEAK Leakage Current in Sleep Mode IINH = -180 mA Tamb < 100C BUS LINES (PINS CANH AND CANL) Vo(reces) (norm) Recessive Bus Voltage VTxD = VVCC; No Load, Normal Mode 2.0 2.5 3.0 V Vo(reces) (stby) Recessive Bus Voltage VTxD = VVCC; No Load, Standby Mode -100 0 100 mV Io(reces) (CANH) Recessive Output Current at Pin CANH -35 V < VCANH < +35 V; 0 V < VCC < 5.25 V -2.5 - +2.5 mA Io(reces) (CANL) Recessive Output Current at Pin CANL -35 V < VCANL < +35 V; 0 V < VVCC < 5.25 V -2.5 - +2.5 mA Vo(dom) (CANH) Dominant output Voltage at Pin CANH VTxD = 0 V 3.0 3.6 4.25 V Vo(dom) (CANL) Dominant Output Voltage at Pin CANL VTxD = 0 V 0. 5 1.4 1.75 V Vo(dif) (bus_dom) Differential Bus Output Voltage (VCANH - VCANL) VTxD = 0 V; Dominant; 42.5 W < RLT < 60 W 1.5 2.25 3.0 V Vo(dif) (bus_rec) Differential Bus Output Voltage (VCANH - VCANL) VTxD = VCC; Recessive; No Load -120 0 +50 mV Io(sc) (CANH) Short-Circuit Output Current at Pin CANH VCANH = 0 V; VTxD = 0 V -45 -70 -120 mA http://onsemi.com 13 NCV7341 Table 8. DC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit VCANL = 42 V; VTxD = 0 V 45 70 120 mA BUS LINES (PINS CANH AND CANL) Io(sc) (CANL) Short-Circuit Output Current at Pin CANL Vi(dif) (th) Differential Receiver Threshold Voltage (see Figure 7) -12 V < VCANL < +12 V -12 V < VCANH < +12 V 0.5 0.7 0.9 V Vihcm(dif) (th) Differential Receiver Threshold Voltage for High Common-Mode (see Figure 7) -35 V < VCANL < +35 V -35 V < VCANH < +35 V 0.35 0.7 1.00 V Vi(dif) (hys) Differential Receiver Input Voltage Hysteresis (see Figure 7) -35 V < VCANL < +35 V -35V <VCANH < +35 V 50 70 100 mV -12 V < VCANH < +12 V -12 V < VCANH < +12 V 0.4 0.8 1.15 V VI(dif)_WAKE Differential Receiver Input Voltage for Bus Wake-up Detection (in Sleep or Standby Mode) Ri(cm) (CANH) Common-Mode Input Resistance at Pin CANH 15 26 39 kW Ri(cm) (CANL) Common-Mode Input Resistance at Pin CANL 15 26 39 kW Ri(cm)(m) Matching between Pin CANH and Pin CANL Common Mode Input Resistance -3.0 0 +3.0 % Ri(dif) Differential Input Resistance 25 50 75 kW Ci(CANH) Input Capacitance at Pin CANH VTxD = VCC 7.5 20 pF Ci(CANL) Input Capacitance at Pin CANL VTxD = VCC 7.5 20 pF Ci(dif) Differential Input Capacitance VTxD = VCC 3.75 10 pF 0.5 x VCC 0.7 x VCC VCANH = VCANL COMMON-MODE STABILIZATION (PIN VSPLIT) VSPLIT Reference Output Voltage at Pin VSPLIT Normal mode; -500 mA < ISPLIT < 500 mA 0.3 x VCC ISPLIT(i) VSPLIT Leakage Current Standby Mode -27 V < VSPLIT < 40 V -50 +50 Standby Mode -27 V < VSPLIT < 40 V Tamb < 100C -5.0 +5.0 Normal Mode 1.3 3.0 5.0 mA 150 160 180 C ISPLIT(lim) VSPLIT Limitation Current (Absolute Value) mA THERMAL SHUTDOWN TJ(SD) Shutdown Junction Temperature http://onsemi.com 14 NCV7341 Table 9. AC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit TIMING CHARACTERISTICS (Figure 6) td(TxD-BUSon) Delay TxD to Bus Active Setup According to Figure 8 40 85 105 ns td(TxD-BUSoff) Delay TxD to Bus Inactive Setup According to Figure 8 30 60 105 ns td(BUSon-RxD) Delay Bus Active to RxD Setup According to Figure 8 25 55 105 ns td(BUSoff-RxD) Delay Bus Inactive to RxD Setup According to Figure 8 40 65 105 ns tpd(rec-dom) Propagation Delay TxD to RxD from Recessive to Dominant Setup According to Figure 8 90 130 230 ns td(dom-rec) Propagation Delay TxD to RxD from Dominant to Recessive Setup According to Figure 8 90 140 245 ns tUV(VCC) Undervoltage Detection Time on VCC 5.0 10 12.5 ms tUV(VIO) Undervoltage Detection Time on VIO 5.0 10 12.5 ms tdom(TxD) TxD Dominant Timeout 300 600 1000 ms th(min) Minimum Hold-Time for the Go-to-Sleep Mode 15 35 50 ms tdom Dominant Time for Wake-up via the Bus Vdif(CAN) > 1.4 V 0.75 2.5 5.0 ms Vdif(CAN) > 1.2 V 0.75 3.0 5.8 ms trec Recessive Time for Wake-up via the Bus VBAT = 12 V 0.75 2.5 5.0 ms tWAKE Debounce Time for the Wake-up via WAKE Pin VBAT = 12 V 5.0 25 50 ms terrdet Minimum dominant bit time for bus error detection NCV7341D20 version 1 2 4 ms MEASUREMENT DEFINITIONS AND SETUPS recessive TxD recessive dominant 50% 50% CANH CANL Vi(dif) = VCANH - VCANL 0.9V 0.5V RxD 0.7 x VCC 0.3 X VCC td(TxD-BUSon) tpd(rec-dom) td(TxD-BUSoff) td(BUSon-RxD) t pd(dom-rec) td(BUSoff-RxD) PC20060915.2 Figure 6. Timing Diagram for AC Characteristics http://onsemi.com 15 NCV7341 VRxD High Low Hysteresis 0.9 0.5 PC20040829.7 Vi(dif)(hys) Figure 7. Hysteresis of the Receiver 47 mF +5V 1 kW 100 nF +12V 10 nF Vcc INH VBAT Vio 5 EN 3 10 7 6 STB 9 ERR 8 Generator TxD 1 RxD CANH NCV7341 14 13 RLT VSPLIT 11 60 W 4 CLT 100 pF CANL 12 2 15 pF WAKE GND PC20060921.6 Figure 8. Test Circuit for Timing Characteristics +5V 47 mF 1 kW 100 nF 10 nF Vcc INH VBAT Vio STB ERR TxD RxD 15 pF 3 7 10 6 14 8 1 9 10 nF WAKE CANH NCV7341 EN 5 13 1 nF 11 4 12 2 VSPLIT CANL 1 nF GND PC20060921.5 Figure 9. Test Circuit for Automotive Transients http://onsemi.com 16 Transient Generator NCV7341 DEVICE ORDERING INFORMATION Part Number NCV7341D20G Description Temperature Range Package Type Shipping HS CAN Transceiver with bus error detection -40C - 125C SOIC-14 (Pb-Free) 55 Tube / Tray -40C - 125C SOIC-14 (Pb-Free) 3000 / Tape & Reel -40C - 125C SOIC-14 (Pb-Free) 55 Tube / Tray -40C - 125C SOIC-14 (Pb-Free) 3000 / Tape & Reel NCV7341D20R2G NCV7341D21G NCV7341D21R2G HS CAN Transceiver For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. http://onsemi.com 17 NCV7341 SOIC 14 CASE 751AP-01 ISSUE A ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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