TLE6251D High Speed CAN-Transceiver with Bus Wake-up Data Sheet Rev. 1.0, 2012-07-27 Automotive Power TLE6251D Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 3.1 3.2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 High Speed CAN Physical Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Stand-by Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power-down State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Remote Wake-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Voltage Adaption to the Microcontroller Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Fail Safe Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Short-circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unconnected Logical Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TxD Time-out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mode Changes during CAN Bus Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delay Time for Mode Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 11 11 12 13 13 15 6 6.1 6.2 6.3 General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 16 17 17 7 7.1 7.2 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Functional Device Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 8.1 8.2 8.3 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESD Immunity According to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Data Sheet 2 22 22 23 24 Rev. 1.0, 2012-07-27 High Speed CAN-Transceiver with Bus Wake-up 1 TLE6251D Overview Features • • • • • • • • • • • • • • • • • Fully compatible with ISO 11898-2 / -5 Wide common mode range for electromagnetic immunity (EMI) Very low electromagnetic emission (EME) Excellent ESD immunity Extended supply range on VCC and VIO VIO input for voltage adaption to the microcontroller supply CAN short-circuit proof to ground, battery and VCC TxD time-out function Low CAN bus leakage current in power-down state Overtemperature protection Protected against automotive transients CAN data transmission rate up to 1 Mbps Stand-by mode with remote wake-up function Wake-up detection by signal change on the RxD output Power Supply VCC can be turned off in stand-by mode Green Product (RoHS compliant) AEC Qualified PG-DSO-8-16 Description The TLE6251D is a transceiver designed for CAN networks in automotive and industrial applications. As an interface between the physical bus layer and the CAN protocol controller, the TLE6251D drives the signals to the bus and protects the microcontroller against interferences generated within the network. Based on the high symmetry of the CANH and CANL signals, the TLE6251D provides a very low level of electromagnetic emission (EME) within a wide frequency range. The TLE6251D is integrated into a RoHS compliant PG-DSO-8-16 package and fulfills or exceeds the requirements of the ISO11898-2 / -5. The TLE6251D allows very low quiescent currents in stand-by mode while the device is still able to wake-up by a bus signal on the CAN bus. Based on the very low leakage currents on the CAN bus interface the TLE6251D provides an excellent passive behavior in power-down state. These and other features make the TLE6251D especially suitable for mixed supply CAN networks. Based on the Infineon Smart Power Technology SPT, the TLE6251D provides excellent ESD immunity together with a very high electromagnetic immunity (EMI). The TLE6251D and the Infineon SPT technology are AEC qualified and tailored to withstand the harsh conditions of the Automotive Environment. Two different operation modes, additional fail-safe features like a TxD time-out, and the optimized output slew rates on the CANH and CANL signals make the TLE6251D the ideal choice for large CAN networks with high data transmission rates. Type Package Marking TLE6251D PG-DSO-8-16 6251D Data Sheet 3 Rev. 1.0, 2012-07-27 TLE6251D Block Diagram 2 Block Diagram 3 5 VCC VIO Transmitter CANH 1 7 Driver Transmitter CANL 6 TxD Timeout TempProtection 8 Mode Control STB Normal Mode Receiver * 4 Mux * Receive Unit RxD Wake-Logic & Filter Low Power Receiver VIO VCC/2 = GND 2 Figure 1 Data Sheet Block diagram 4 Rev. 1.0, 2012-07-27 TLE6251D Pin Configuration 3 Pin Configuration 3.1 Pin Assignment TxD 1 8 STB GND 2 7 CANH VCC 3 6 CANL RxD 4 5 VIO Figure 2 Pin configuration 3.2 Pin Definitions Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 TxD Transmit Data Input; Internal pull-up to VIO, “low” for “dominant” state. 2 GND Ground 3 VCC Transceiver Supply Voltage; 100 nF decoupling capacitor to GND required, VCC can be turned off in stand-by mode. 4 RxD Receive Data Output; “low” in “dominant” state. 5 VIO Digital Supply Voltage Input; supply voltage input to adapt the logical input and output voltage levels of the transceiver to the microcontroller supply. Supply for the low-power receiver. 100 nF decoupling capacitor to GND required. 6 CANL CAN Bus Low level I/O; “low” in “dominant” state. 7 CANH CAN Bus High level I/O; “high” in “dominant” state. 8 STB Stand-by Input; internal pull-up to VIO, “low” for normal-operating mode. Data Sheet 5 Rev. 1.0, 2012-07-27 TLE6251D Functional Description 4 Functional Description CAN is a serial bus system that connects microcontrollers, sensors and actuators for real-time control applications. The use of the Controller Area Network (abbreviated CAN) within road vehicles is described by the international standard ISO 11898. According to the 7-layer OSI reference model, the physical layer of a CAN bus system specifies the data transmission from one CAN node to all other available CAN nodes within the network. The physical layer specification of a CAN bus system includes all electrical and mechanical specifications of a CAN network. The CAN transceiver is part of the physical layer specification. Several different physical layer standards of CAN networks have been developed in recent years. The TLE6251D is a High Speed CAN transceiver with a dedicated bus wake-up function and defined by the international standard ISO 11898-2. 4.1 High Speed CAN Physical Layer TxD VIO t CAN_H CAN_L VCC VIO VCC = = TxD = RxD = CANH = CANL = VDIFF = Digital supply High Speed CAN power supply Input from the microcontroller Output to the microcontroller Voltage on the CANH input/output Voltage on the CANL input/output Differential voltage between CANH and CANL VDIFF = VCANH – VCANL t VDIFF “dominant“ VDIFF = ISO Level “dominant“ “recessive“ VDIFF = ISO Level “recessive“ t RxD VIO t Figure 3 Data Sheet High Speed CAN bus signals and logical signals 6 Rev. 1.0, 2012-07-27 TLE6251D Functional Description The TLE6251D is a High Speed CAN transceiver, operating as an interface between the CAN controller and the physical bus medium. A HS CAN network is a two-wire, differential network, which allows data transmission rates up to 1 Mbps. The characteristics for a HS CAN network are the two signal states on the CAN bus: “dominant” and “recessive” (see Figure 3). The CANH and CANL pins are the interface to the CAN bus and both pins operate as an input and output. The RxD and TxD pins are the interface to the microcontroller. The TxD pin is the serial data input from the CAN controller, the RxD pin is the serial data output to the CAN controller. As shown in Figure 1, the HS CAN transceiver TLE6251D includes a receiver and a transmitter unit, allowing the transceiver to send data to the bus medium and monitor the data from the bus medium at the same time. The HS CAN transceiver TLE6251D converts the serial data stream which is available on the transmit data input TxD, into a differential output signal on the CAN bus, provided by the pins CANH and CANL. The receiver stage of the TLE6251D monitors the data on the CAN bus and converts them to a serial, single-ended signal on the RxD output pin. A logical “low” signal on the TxD pin creates a “dominant” signal on the CAN bus, followed by a logical “low” signal on the RxD pin (see Figure 3). The feature, broadcasting data to the CAN bus and listening to the data traffic on the CAN bus simultaneously is essential to support the bit-to-bit arbitration within CAN networks. The voltage levels for HS CAN transceivers are defined by the ISO 11898-2 and the ISO 11898-5 standards. Whether a data bit is “dominant” or “recessive” depends on the voltage difference between the CANH and CANL pins: VDIFF = VCANH - VCANL. In comparison with other differential network protocols, the amplitude of the differential signal on a CAN network can only be higher than or equal to 0 V. To transmit a “dominant” signal to the CAN bus, the amplitude of the differential signal VDIFF is higher than or equal to 1.5 V. To receive a “recessive” signal from the CAN bus, the amplitude of the differential VDIFF is lower than or equal to 0.5 V. “Partially-supplied” High Speed CAN networks are networks in which the CAN bus nodes of one common network have different power supply conditions. Some nodes are connected to the common power supply, while other nodes are disconnected from the power supply and in power-down state. Regardless of whether the CAN bus subscriber is supplied or not, each subscriber connected to the common bus media must not interfere with the communication. The TLE6251D is designed to support “partially-supplied” networks. In the power-down state, the receiver input resistors are switched off and the transceiver input has a high resistance. For permanently supplied ECUs, the HS CAN transceiver TLE6251D provides a stand-by mode. In stand-by mode, the power consumption of the TLE6251D is optimized to a minimum, while the device is still able to recognize wake-up patterns on the CAN bus and signal a wake-up event to the external microcontroller. The voltage level on the digital input TxD and the digital output RxD is determined by the power supply level at the VIO pin. Depending on the voltage level at the VIO pin, the signal levels on the logic pins (STB, TxD and RxD) are compatible with microcontrollers having a 5 V or 3.3 V I/O supply. Usually, the VIO power supply of the transceiver is connected to the same power supply as the I/O power supply of the microcontroller. Data Sheet 7 Rev. 1.0, 2012-07-27 TLE6251D Functional Description 4.2 Modes of Operation Two different modes of operation are available on the TLE6251D. Each mode has specific characteristics in terms of quiescent current or data transmission. The digital input pin STB is used for the mode selection. Figure 4 illustrates the different mode changes depending on the status of the STB pin. After supplying VCC and VIO to the HS CAN transceiver, the TLE6251D starts in stand-by mode. The internal pull-up resistor at the STB pin sets the TLE6251D to stand-by mode by default. If the microcontroller is up and running, the TLE6251D can switch to any operating mode within the time period for mode change tMODE. VCC < VCC(UV) start–up supply VCC and VIO VIO < VIO(UV) undervoltage detection on VCC and VIO power-down stand-by mode STB = 1 STB = 0 STB = 1 normal-operating mode STB = 0 Figure 4 Mode of operation The TLE6251D has 2 major modes of operation: • • Stand-by mode Normal-operating mode Table 2 Modes of Operation Mode STB Bus Bias Comment Normaloperating mode “low” VCC/2 The transmitter is active. The normal mode receiver is active. The low-power receiver is disabled. Stand-by mode VCC on VIO on “high” GND The transmitter is disabled. The normal mode receiver is disabled. The low-power receiver is active. Stand-by mode “high” GND The transmitter is disabled. The normal mode receiver is disabled. The low-power receiver is active. Don’t care Floating The transmitter is disabled. The normal mode receiver is disabled. The low-power receiver is disabled. VCC off VIO on Power-down state VCC off VIO off Data Sheet 8 Rev. 1.0, 2012-07-27 TLE6251D Functional Description 4.3 Normal-operating Mode In the normal-operating mode, the HS CAN transceiver TLE6251D sends the serial data stream on the TxD pin to the CAN bus. The data on the CAN bus is displayed at the RxD pin simultaneously. In normal-operating mode, all functions of the TLE6251D are active: • • • • • • The transmitter is active and drives data from the TxD to the CAN bus. The receiver is active and provides the data from the CAN bus to the RxD pin. The low-power receiver is disabled. The bus basing is set to VCC/2. The undervoltage monitoring on the power supply VCC and on the power supply VIO is active. The overtemperature protection is active. To enter the normal-operating mode, set the STB pin to logical “low” (see Table 2 or Figure 4). The STB pin has an internal pull-up resistor to the power-supply VIO. 4.4 Stand-by Mode Stand-by mode is an idle mode of the TLE6251D with optimized power consumption. In stand-by mode, the TLE6251D can not send or receive any data. The normal mode receiver is switched off and only the low-power receiver is active. An additional filter, implemented inside the low-power receiver ensures that only “dominant” and “recessive” signals on the CAN bus, which are longer than the bus wake-up time tWU are indicated at the RxD output pin. • • • • • • • • • • The transmitter is disabled, and permanently “recessive”. The input TxD is disabled. The normal mode receiver is disabled. The low-power receiver is active. The RxD output is “high”, in case no wake-up signal on the CAN bus is detected (see Figure 5). The RxD output toggles according to the wake-up signal on the CAN bus (see Figure 5). The undervoltage monitoring on the power supply VCC is disabled. The undervoltage monitoring on the power supply VIO is active. The bus biasing is set to GND. The overtemperature protection is not active. To enter the stand-by mode, set the pin STB to logical “high” (see Table 2 or Figure 4). The STB pin has an internal pull-up resistor to the power-supply VIO. In case the stand-by mode is not be used in the final application, the STB pin needs to get connected to GND. 4.5 Power-down State The power-down state means that the TLE6251D is not supplied. In the power-down state, the differential input resistors of the receiver are switched off. The CANH and CANL bus interface of the TLE6251D acts as a highimpedance input with a very small leakage current. The high-ohmic input does not influence the “recessive” level of the CAN network and allows an optimized EME performance of the entire CAN network. Data Sheet 9 Rev. 1.0, 2012-07-27 TLE6251D Functional Description 4.6 Remote Wake-up The TLE6251D has a remote wake-up feature, also called bus wake-up feature. In stand-by mode, the low-power receiver monitors the activity on the CAN bus and in case it detects a wake-up signal, the TLE6251D indicates the wake-up signal on the RxD output pin. While entering into stand-by mode by setting the STB pin to logical “high”, the RxD output pin is set to logical “high”, regardless of the signal on the CAN bus. The low-power receiver of the TLE6251D requires a signal change from “recessive” to “dominant” on the CAN bus before the RxD output is enabled and follows the signal on the CAN bus. CAN bus signals, “dominant” or “recessive”, with a pulse width above the bus wake-up time t > tWU are indicated on the RxD output pin (see Figure 5). The wake-up logic is supplied by the power supply VIO (see Figure 1). In case the TLE6251D is in stand-by mode, the power supply VCC can be turned off, while the TLE6251D is still able to detect the wake-up pattern on the CAN bus. t = tWU t = tWU t = tWU t = tWU CANH CANL t VDIFF = CANH - CANL VDIFF t RxD t VIO STB t Figure 5 Wake-up pattern 4.7 Voltage Adaption to the Microcontroller Supply The HS CAN transceiver TLE6251D has two different power supplies, VCC and VIO. The power supply VCC supplies the transmitter and the normal mode receiver, the power supply VIO supplies the digital input and output buffers, the low-power receiver and the wake-up logic. To adjust the digital input and output levels of the TLE6251D to the I/O levels of the external microcontroller, the power supply VIO should be connected to the microcontroller pad supply (see Figure 13). Supplying the low-power receiver by the VIO pin allows to switch off the VCC supply in stand-by mode and leads to an additional reduction of the quiescent current in stand-by mode. Data Sheet 10 Rev. 1.0, 2012-07-27 TLE6251D Fail Safe Functions 5 Fail Safe Functions 5.1 Short-circuit Protection The CANH and CANL bus outputs are short-circuit proof, either against GND or a positive supply voltage. A current limiting circuit protects the transceiver against damages. If the device heats up due to a continuous short on the CANH or CANL, the internal overtemperature protection switches off the bus transmitter. 5.2 Unconnected Logical Pins All logical input pins have an internal pull-up resistor to VIO. In case the VIO supply is activated and the logical pins are open or floating, the TLE6251D enters the stand-by mode by default. In stand-by mode, the transmitter of the TLE6251D is disabled, the bus bias is turned off and the input resistors of CANH and CANL are connected to GND. The HS CAN transceiver TLE6251D will not influence the data on the CAN bus. 5.3 TxD Time-out Function The TxD time-out feature protects the CAN bus against permanent blocking in case the logical signal on the TxD pin is continuously “low”. A continuous “low” signal on the TxD pin can have its root cause in a locked-up microcontroller or in a short on the printed circuit board, for example. In normal-operating mode, a logical “low” signal on the TxD pin for the time t > tTxD enables the TxD time-out feature and the TLE6251D disables the transmitter (see Figure 6). The receive unit is still active and the data on the bus continue to be monitored by the RxD output pin. t > tTxD TxD time-out CANH CANL TxD time-out released t TxD t RxD t Figure 6 TxD Time-out function Figure 6 shows how the transmitter is deactivated and re-activated again. A permanent “low” signal on the TxD input pin activates the TxD time-out function and deactivates the transmitter. To release the transmitter after a TxD time-out event, the TLE6251D requires a signal change on the TxD input pin from logical “low” to logical “high”. Data Sheet 11 Rev. 1.0, 2012-07-27 TLE6251D Fail Safe Functions 5.4 Undervoltage Detection The HS CAN Transceiver TLE6251D is provided with undervoltage detection on the power supply VCC and the power supply VIO. Both undervoltage detection monitors are active in normal-operating mode. In stand-by mode only the VIO undervoltage monitoring is active, the VCC undervoltage monitoring is disabled. In case the power supply VCC or VIO drops below a voltage level where the transceiver TLE6251D cannot securely send data to the bus or receive data from the bus, the undervoltage detection disables the data communication (see Figure 7). The transmitter and the receiver are disabled, but the bus biasing remains connected to VCC/2. With a falling VCC supply, the “recessive” level of the CAN bus signal decreases respectively. hysteresis VCC(UV,H) Supply voltage VCC delay time undervoltage tDelay(UV) VCC undervoltage monitor VCC(UV) STB=0 normal-operating mode communication blocked hysteresis VIO(UV,H) normal-operating mode1) Supply voltage VIO VIO undervoltage monitor VIO(UV) delay time undervoltage tDelay(UV) STB=0 normal-operating mode communication blocked normal-operating mode1) 1) Assuming the logical signal on the pin STB keeps its value during the undervoltage event. In this case STB remains „low“. Figure 7 Data Sheet Undervoltage detection on VCC or VIO 12 Rev. 1.0, 2012-07-27 TLE6251D Fail Safe Functions 5.5 Overtemperature Protection The TLE6251D has an integrated overtemperature detection circuit to protect the TLE6251D against thermal overstress of the transmitter. The overtemperature protection is active in normal-operating mode and disabled in stand-by mode. In case of an overtemperature condition, the temperature sensor will disable the transmitter (see Figure 1) while the transceiver remains in normal-operating mode. After the device cools down the transmitter is activated again (see Figure 8). A hysteresis is implemented within the temperature sensor. Overtemperature event TJSD TJ ΔT Cool Down (shut-down temperature) switch-on transmitter t CANH CANL t TxD t RxD t Figure 8 Overtemperature protection 5.6 Mode Changes during CAN Bus Failures Failures on the CAN bus, like for example a short to the battery supply, might cause a permanent “dominant” signal on the CAN bus and block the communication. Disregarding the signal on the CAN bus, the HS CAN transceiver TLE6251D can change its operating mode from normal-operating mode to stand-by mode and vice versa. While entering stand-by mode by setting the STB pin to logical “high”, the RxD output pin is set to logical “high”, regardless if the CAN bus signal is “recessive” or “dominant”. In stand-by mode the TLE6251D requires a mode change from “recessive” to “dominant” once, before the RxD output follows the signals on the CAN bus. After detecting one signal change from “recessive” to “dominant” on the CAN bus; a “recessive” CAN bus signal is indicated on the RxD output pin by a logical “high” signal and a “dominant” CAN bus signal is indicated by a logical “low” signal, as long the pulse width of the CAN bus signals is above the bus wake-up time t > tWU (see Figure 9). Data Sheet 13 Rev. 1.0, 2012-07-27 TLE6251D Fail Safe Functions First change from „recessive“ to „dominant“ t = tWU t = tWU t = tWU t = tWU CANH CANL t VDIFF = CANH - CANL VDIFF t RxD t VIO STB t normaloperating mode Figure 9 Data Sheet stand-by mode Change to stand-by mode during bus “dominant” 14 Rev. 1.0, 2012-07-27 TLE6251D Fail Safe Functions 5.7 Delay Time for Mode Change During the mode change from stand-by mode to normal-operating mode or vice versa, the internal receive unit switches from the low-power receiver to the normal mode receiver and vice versa. In order to avoid any bit toggling on the RxD output pin, the RxD output is set to logical “high” during the mode change for the time tMode (see Figure 10) and is not reflecting the signal on the CAN bus. normal-operating mode stand-by mode normal-operating mode VCAN CANH VCC/2 CANL t STB t VRxD tMODE Figure 10 Data Sheet tMODE t Signal on the RxD pin during a mode change 15 Rev. 1.0, 2012-07-27 TLE6251D General Product Characteristics 6 General Product Characteristics 6.1 Absolute Maximum Ratings Table 3 Absolute Maximum Ratings Voltages, Currents and Temperatures1) All voltages with respect to ground; positive current flowing into pin (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Max. Unit Remarks Voltages 6.1.1 Supply voltage VCC -0.3 6.0 V – 6.1.2 Logic supply voltage -0.3 6.0 V – 6.1.3 CANH DC voltage versus GND -40 40 V – 6.1.4 CANL DC voltage versus GND VIO VCANH VCANL -40 40 V – 6.1.5 Differential voltage between CANH and CANL VCAN diff -40 40 V – 6.1.6 Logic voltages at logic input pins STB, VMax_in TxD -0.3 6.0 V – 6.1.7 Logic voltages at logic output pin RxD VMax_Out -0.3 VIO V – Temperatures 6.1.8 Junction temperature Tj -40 150 °C – 6.1.9 Storage temperature TS -55 150 °C – 8 kV HBM (100pF via 1.5 kΩ)2) 2 kV HBM (100pF via 1.5 kΩ)2) 750 V CDM3) ESD Resistivity 6.1.10 ESD immunity at CANH, CANL versus GND CAN 6.1.11 ESD immunity at all other pins VESD_HBM_ -2 VESD_HBM_ -8 All 6.1.12 ESD immunity to GND VESD_CDM -750 1) Not subject to production test, specified by design 2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001 3) ESD susceptibility, Charge Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1 Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation. Data Sheet 16 Rev. 1.0, 2012-07-27 TLE6251D General Product Characteristics 6.2 Functional Range Table 4 Operating Range Pos Parameter Symbol Limit Values Min. Max. Unit Remarks Supply Voltages 6.2.1 Transceiver supply voltage VCC 4.5 5.5 V – 6.2.2 Digital supply voltage VIO 3.0 5.5 V – Tj -40 150 °C 1) Thermal Parameters 6.2.3 Junction temperature 1) Not subject to production test, specified by design. Note: Within the functional range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. 6.3 Thermal Resistance Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, please visit www.jedec.org. Thermal Resistance1) Table 5 Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. RthJA – 130 – K/W 2) Thermal Resistances 6.3.1 Junction to ambient Thermal Shutdown (junction temperature) 6.3.2 Thermal shutdown temperature TJSD 150 175 200 °C – 6.3.3 Thermal shutdown hyst. ΔT – 10 – K – 1) Not subject to production test, specified by design 2) The RthJA value specified is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The product (TLE6251D) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu). Data Sheet 17 Rev. 1.0, 2012-07-27 TLE6251D Electrical Characteristics 7 Electrical Characteristics 7.1 Functional Device Characteristics Table 6 Electrical Characteristics 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive current flowing into pin; unless otherwise specified. Pos. Parameter Symbol Limit Values Min. Typ. Max. Unit Remarks Current Consumption 7.1.1 Current consumption at VCC normal-operating mode ICC – 2 6 mA “recessive” state, VTxD = VIO, STB = “low”; 7.1.2 Current consumption at VCC normal-operating mode ICC – 35 60 mA “dominant” state, VTxD = 0 V. STB = “low”; 7.1.3 Current consumption at VIO normal-operating mode IVIO – – 1 mA STB = “low”; 7.1.4 Current consumption at VCC stand-by mode IVCC(STB) – – 5 μA VTxD = VIO, VCC = 5 V; 7.1.5 Current consumption at VIO stand-by mode IVIO(STB) – – 25 μA VIO = 5 V, VTxD = VIO; 7.1.6 Current consumption at VIO stand-by mode IVIO(STB) – 15 21 μA VIO = 5 V, VTxD = VIO, TJ = 40 °C; 4.0 4.3 V rising edge; 1) Supply Resets 7.1.7 7.1.8 VCC undervoltage monitor VCC undervoltage monitor VCC(UV) 3.8 VCC(UV,H) – 150 – mV 2.0 3.0 V rising edge; hysteresis VIO undervoltage monitor 7.1.10 VIO undervoltage monitor 7.1.9 VIO(UV) 1.2 VCC(UV,H) – 200 – mV 1) – 50 μs 1) hysteresis 7.1.11 VCC and VIO undervoltage delay tDelay(UV) – time (see Figure 7); Receiver Output: RxD 7.1.13 “High” level output current IRD,H – -4 -2 mA VRxD = VIO - 0,4 V, VDIFF < 0.5 V; 7.1.14 “Low” level output current IRD,L 2 4 – mA VRxD = 0.4 V, VDIFF > 0.9 V; 7.1.15 “High” level input voltage threshold VTD,H – 0.5 × 0.7 × V “recessive” state; VIO VIO 7.1.16 “Low” level input voltage threshold VTD,L 0.3 × 0.4 × – V “dominant” state; VIO VIO 7.1.18 TxD pull-up resistance RTD 10 25 50 kΩ – 7.1.19 TxD input hysteresis VHYS(TxD) – 800 – mV 1) 7.1.20 TxD permanent dominant disable time tTxD – 16 ms – Transmission Input: TxD Data Sheet 4.5 18 Rev. 1.0, 2012-07-27 TLE6251D Electrical Characteristics Table 6 Electrical Characteristics (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive current flowing into pin; unless otherwise specified. Pos. Parameter Symbol Limit Values Min. Typ. Max. 0.5 × 0.7 × VIO VIO Unit Remarks Stand-by Input: STB 7.1.21 “High” level input voltage threshold VSTB,H – 7.1.22 “Low” level input voltage threshold VSTB,L 0.3 × 0.4 × VIO VIO 7.1.24 STB pull-up resistance RSTB 10 25 V stand-by mode; – V normal-operating mode; 50 kΩ – VHYS(STB) – 200 – mV 1) 7.1.26 Differential receiver threshold “dominant” VDIFF_D – 0.75 0.9 V normal-operating mode; 7.1.27 Differential receiver threshold “recessive” VDIFF_R 0.5 0.65 – V normal-operating mode; 7.1.28 Differential receiver threshold “dominant” VDIFF_D_ – 0.8 1.15 V stand-by mode; 7.1.29 Differential receiver threshold “recessive” VDIFF_R_ 0.4 0.7 – V stand-by mode; 7.1.30 Common Mode Range CMR -12 – 12 V VCC = 5 V; 7.1.31 Differential receiver hysteresis Vdiff,hys – 100 – mV 1) 7.1.32 CANH, CANL input resistance Ri 10 20 30 kΩ “recessive” state; 7.1.33 Differential input resistance Rdiff 20 40 60 kΩ “recessive” state; 7.1.25 STB input hysteresis Bus Receiver STB STB normal-operating mode; 7.1.34 Input resistance deviation between CANH and CANL Δ Ri -3 – 3 % 1) 7.1.35 Input capacitance CANH, CANL versus GND CIn – 20 40 pF 1) VTXD = VIO; 7.1.36 Differential input capacitance CInDiff – 10 20 pF 1) VTXD = VIO; VCANL/H 2.0 2.5 3.0 V no load, “recessive” state; Bus Transmitter 7.1.37 CANL/CANH “recessive” output voltage VTxD = VIO, normal-operating mode; 7.1.38 CANH, CANL “recessive” output voltage difference Vdiff -500 – 50 mV no load, VTxD = VIO, normal-operating mode; 7.1.39 CANH, CANL “recessive” output voltage difference Vdiff -0.1 – 0.1 V no load, stand-by mode; Data Sheet 19 Rev. 1.0, 2012-07-27 TLE6251D Electrical Characteristics Table 6 Electrical Characteristics (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive current flowing into pin; unless otherwise specified. Pos. Parameter Symbol Limit Values Min. Typ. Max. Unit Remarks 7.1.40 CANL “dominant” output voltage VCANL 0.5 – 2.25 V VTxD = 0 V, 50 Ω < RL < 65 Ω, normal-operating mode; 7.1.41 CANH “dominant” output voltage VCANH 2.75 – 4.5 V VTxD = 0 V, 50 Ω < RL < 65 Ω, normal-operating mode; 7.1.42 CANH, CANL “dominant” output voltage difference Vdiff = VCANH - VCANL Vdiff 1.5 – 3.0 V 4.75 V < VCC < 5.25 V, VTxD = 0 V, 50 Ω < RL < 65 Ω, normal-operating mode; 7.1.43 Driver symmetry VSYM = VCANH + VCANL VSYM 4.5 5 5.5 V VTXD = 0 V, VCC = 5 V, 7.1.44 CANL short-circuit current ICANLsc 40 75 100 mA VTXD = 0 V, VCC = 5 V, t < tTXD, normal-operating mode; VCANLshort = 18 V; 7.1.45 CANH short-circuit current ICANHsc -100 -75 -40 mA VTXD = 0 V, VCC = 5 V, t < tTXD, VCANHshort = 0 V; 7.1.46 Leakage current, CANH ICANH,lk -5 – 5 μA VCC = 0 V, VCANH = VCANL, 0 V < VCANH < 5 V; 7.1.47 Leakage current, CANL ICANL,lk -5 – 5 μA VCC = 0 V, VCANH = VCANL, 0 V < VCANL < 5 V; Dynamic CAN-Transceiver Characteristics 7.1.50 Propagation delay TxD-to-RxD “low”; (“recessive to “dominant”) td(L),TR 30 180 255 ns CL = 100 pF, VCC = 5 V, CRxD = 15 pF; 7.1.51 Propagation delay TxD-to-RxD “high”; (“dominant” to “recessive”) td(H),TR 30 200 255 ns CL = 100 pF, VCC = 5 V, CRxD = 15 pF; 7.1.52 Propagation delay TxD “low” to bus “dominant” td(L),T – 100 – ns 1) 7.1.53 Propagation delay TxD “high” to bus “recessive” td(H),T – 90 – ns 1) 7.1.54 Propagation delay bus “dominant” to RxD “low” td(L),R – 80 – ns 1) 7.1.55 Propagation delay bus “recessive” to RxD “high” td(H),R – 110 – ns 1) 7.1.57 Bus wake-up time tWU 0.5 3 5 μs see Figure 5 7.1.58 Delay time for mode change tMode – – 10 μs 2) CL = 100 pF, VCC = 5 V, CRxD = 15 pF; CL = 100 pF, VCC = 5 V, CRxD = 15 pF; CL = 100 pF, VCC = 5 V,CRxD = 15 pF; CL = 100 pF; VCC = 5 V; CRxD = 15 pF; see Figure 10 1) Not subject to production test, specified by design 2) Delay time only tested for the mode change from stand-by mode to normal-operating mode. The delay time normaloperating mode to stand-by mode is not subject to production test and specified by design Data Sheet 20 Rev. 1.0, 2012-07-27 TLE6251D Electrical Characteristics 7.2 Diagrams VIO 7 CANH TxD STB CL 5 100 nF 1 8 RL RxD 6 4 CRxD CANL GND VCC 3 100 nF 2 Figure 11 Simplified test circuit VTxD VIO GND VDIFF td(L),T 0,9V 0,5V t td(H),R td(L),R VRxD t td(H),T td(L),TR td(H),TR VIO 0.7 x VIO 0.3 x VIO GND t Figure 12 Data Sheet Timing diagrams for dynamic characteristics 21 Rev. 1.0, 2012-07-27 TLE6251D Application Information 8 Application Information 8.1 ESD Immunity According to IEC61000-4-2 Tests for ESD immunity according to IEC61000-4-2, “GUN test” (150 pF, 330 Ω), have been performed. The results and test conditions are available in a separate test report. Table 7 ESD immunity according to IEC61000-4-2 Test performed Result Unit Remarks Electrostatic discharge voltage at CANH and CANL pins against GND ≥+9 kV 1) Positive pulse Electrostatic discharge voltage at pin CANH and ≤ − 9 CANL pins against GND kV 1) Negative pulse 1) ESD susceptibility “ESD GUN” according to GIFT / ICT paper: “EMC Evaluation of CAN Transceivers, version 03/02/ IEC TS 62228“, section 4.3. (DIN EN61000-4-2) Tested by external test facility (IBEE Zwickau, EMC test report no.: 08-04-12). Data Sheet 22 Rev. 1.0, 2012-07-27 TLE6251D Application Information 8.2 Application Example VBAT I Q1 22 uF TLE4476D CANH CANL EN 100 nF GND 100 nF Q2 3 VCC 22 uF 100 nF VIO 5 TLE6251D 8 STB 7 CANH 6 1 TxD Out 4 RxD CANL VCC Out In Microcontroller e.g. XC22xx Optional: Common Mode Choke GND GND 2 I Q1 22 uF TLE4476D EN GND 100 nF Q2 3 VCC 22 uF VIO TLE6251D STB 7 CANH 6 TxD RxD CANL Optional: Common Mode Choke 5 8 1 4 100 nF 100 nF VCC Out Out In Microcontroller e.g. XC22xx GND GND 2 Figure 13 Data Sheet Application circuit 23 Rev. 1.0, 2012-07-27 TLE6251D Application Information 8.3 • • Further Application Information Please contact us for information regarding the pin FMEA. For further information you may visit: http://www.infineon.com/transceiver Data Sheet 24 Rev. 1.0, 2012-07-27 TLE6251D Package Outline 9 Package Outline 0.1 2) 0.41+0.1 -0.06 0.2 8 5 1 4 5 -0.2 1) M 0.19 +0.06 4 -0.2 C B 8 MAX. 1.27 1.75 MAX. 0.175 ±0.07 (1.45) 0.35 x 45˚ 1) 0.64 ±0.25 6 ±0.2 A B 8x 0.2 M C 8x A Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area GPS01181 Figure 14 PG-DSO-8 (Plastic Dual Small Outline) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations, the device is available as a green product. Green products are RoHS compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Data Sheet 25 Dimensions in mm Rev. 1.0, 2012-07-27 TLE6251D Revision History 10 Revision History Revision Date Changes 1.0 2012-07-27 Data Sheet created Data Sheet 26 Rev. 1.0, 2012-07-27 Edition 2012-07-27 Published by Infineon Technologies AG 81726 Munich, Germany © 2006 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only 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.