TLE9252VLC

TLE9252V Hi gh-Speed CAN FD Transceiver 1 Overview Features • Fully compliant to ISO 11898-2 (2016) and SAE J2284-4/-5 • Reference device and part of Interoperability Test Specification for CAN Transceiver • Guaranteed loop delay symmetry to support CAN FD data frames up to 5 MBit/s • Bus Wake-up Pattern (WUP) function with optimized filter time (0.5µs - 1.8µs) for worldwide OEM usage • Excellent ESD robustness +/-10kV (HBM) and +/-9kV (IEC 61000-4-2) • Very low current consumption in Sleep Mode of max. 25µA • Extended supply range on VCC and VIO supply • Dual Power Supply Solution via VBAT and VCC for robust behavior during battery cranking • Fail safe features like TxD time-out, RxD Recessive Clamping and Overtemperature shut-down • Very low electromagnetic emission (EME) for chokeless usage • CAN short circuit proof to ground, battery and VCC • Undervoltage detection on VBAT, VCC and VIO • Autonomous bus biasing according to ISO 11898-2 (2016) • Bus Wake-up (WUP) and Local Wake-Up (LWU) • INH output to control external circuity • Improved robust local failure diagnosis via NERR output pin • Green Product (RoHS compliant) Potential Applications • Infotainment applications • Cluster Modules • Radar applications • HVAC Datasheet www.infineon.com/automotive-transceiver 1 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Overview Product validation Qualified for automotive applications. Product validation according to AEC-Q100. Description The TLE9252V is a transceiver designed for HS CAN networks up to 5 Mbit/s in automotive and industrial applications. As an interface between the physical bus layer and the CAN protocol controller, the TLE9252V 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 TLE9252V provides very low electromagnetic emission allowing the operation without a common mode choke. The non-low power modes (Normal-operating Mode and Receive-only Mode) and low power modes (Sleep Mode and Stand-by Mode) are optimized for reduced current consumption based on the required functionality. Even in Sleep Mode with a quiescent current below 25 µA over the full temperature range, the TLE9252V is able to detect a Wake-Up Pattern (WUP) on the HS CAN bus. The VIO voltage reference input is used to support 3.3 V and 5 V supplied microcontrollers. The TLE9252V is integrated in an RoHS compliant PG-DSO-14 or PG-TSON-14 package and fulfills the requirements of the ISO11898-2 (2016). Type Package Marking TLE9252VSK PG-DSO-14 9252V TLE9252VLC PG-TSON-14 9252V Datasheet 2 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Table of contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Potential Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 3.1 3.2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 4.1 4.2 4.3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 High-Speed CAN functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 6.1 6.2 6.3 6.4 6.5 6.5.1 6.5.2 6.6 6.7 6.8 6.8.1 6.8.2 6.9 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receive-only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stand-by Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Go-to-Sleep command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mode change to Sleep Mode or Stand-by Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mode Change via EN and NSTB pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Autonomous bus voltage biasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wake-Up functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wake-up Pattern (WUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Local Wake-Up (LWU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wake-up: RxD and NERR behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 14 15 16 17 18 18 20 21 22 23 23 24 25 7 7.1 7.2 7.2.1 7.2.2 7.2.3 7.3 7.4 7.5 7.6 7.7 7.8 Fail safe functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage and power-down detection on VBAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage detection on VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage detection on VIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual Power Supply Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unconnected logic pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TxD time-out function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RxD Recessive Clamping detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delay time for mode change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 27 27 27 28 29 30 30 30 31 31 32 8 Diagnosis-flags at NERR and RxD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Datasheet 3 8 8 9 9 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver 9 9.1 9.2 9.2.1 9.2.2 9.2.3 9.3 9.4 9.5 9.6 9.7 9.8 9.8.1 9.8.2 9.8.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General timing parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power supply interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current consumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Undervoltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INH output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EN, NSTB and NERR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAN controller interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic transceiver parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wake-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General wake-up timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WUP detection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Local Wake-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 35 35 35 36 37 38 38 39 40 42 44 44 45 45 10 10.1 10.2 10.3 10.4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESD robustness according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage adaption to the microcontroller supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 46 46 47 47 11 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Datasheet 4 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Block diagram 2 Block diagram VBAT N.C. VCC CANH CANL 10 11 7 3 6 INH EN Mode Control Logic 13 Driver Output Stage 12 14 Temp.Protection NSTB + timeout 5 VIO Diagnosis & Failure Logic VCC/2, 2.5V 1 Wake-Up Detection TxD VIO Normal Receiver 8 RxD Output Control Low Power Receiver NERR VBAT VIO WAKE 9 Wake-Up Comparator 4 RxD 2 GND Figure 1 Datasheet Block diagram 5 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Pin configuration 3 Pin configuration 3.1 Pin assignment TxD 1 14 NSTB GND 2 13 CANH PAD VCC 3 12 CANL RxD 4 11 N.C. VIO 5 10 VBAT EN 6 9 WAKE INH 7 8 NERR TxD 1 14 NSTB GND 2 13 CANH VCC 3 12 CANL RxD 4 11 N.C. VIO 5 10 VBAT EN 6 9 WAKE INH 7 8 NERR (Top-side x-ray view) Figure 2 Pin configuration 3.2 Pin definitions Table 1 Pin definitions and functions Pin Symbol Function 1 TxD Transmit Data input Integrated “pull-up” current source to VIO; Logical “low” to drive a dominant signal on CANH and CANL. 2 GND Ground 3 VCC Transmitter supply voltage 100 nF decoupling capacitor to GND recommended. 4 RxD Receive Data output Logical “low” while a dominant signal is on the HS CAN bus; Output voltage adapted to the voltage on the VIO level shift input. 5 VIO Level shift input Reference voltage for the digital input and output pins; 100 nF decoupling capacitor to GND recommended. 6 EN Mode control input Integrated “pull-down” current source to GND; Logical “high” for Normal-operating Mode. Datasheet 6 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Pin configuration Table 1 Pin definitions and functions (cont’d) Pin Symbol Function 7 INH Inhibit output Open drain output to control external circuitry; High impedance in Sleep Mode. 8 NERR Error flag output Failure and wake-up indication output; Active “low”. 9 WAKE Wake-up input Local wake-up input, terminated against GND and VBAT; Wake-up input sensitive on rising and falling edge. 10 VBAT Battery supply voltage 100 nF decoupling capacitor to GND recommended. 11 N.C. Not connected 12 CANL Low-level HS CAN bus line 13 CANH High-level HS CAN bus line 14 NSTB Stand-by control input Integrated “pull-down” current source to GND; Logical “high” for Normal-operating Mode. Datasheet 7 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver General product characteristics 4 General product characteristics 4.1 Absolute maximum ratings Table 2 Absolute maximum ratings1) All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Voltages Battery supply voltage VBAT -0.3 – 40 V – P_8.1.1 Transmitter supply voltage VCC -0.3 – 6.0 V – P_8.1.2 Digital voltage reference VIO -0.3 – 6.0 V – P_8.1.3 CANH DC voltage versus GND VCANH -40 – 40 V – P_8.1.4 CANL DC voltage versus GND VCANL -40 – 40 V – P_8.1.5 Differential voltage between CANH and CANL VCAN_DIFF -40 – 40 V – P_8.1.6 Voltages at pin WAKE VWAKE -27 – 40 V – P_8.1.7 Voltages at pin INH VINH -0.3 – VBAT + 0.3 V – P_8.1.8 Voltages at digital I/O pins: EN, VMAX_IO1 NSTB, TxD, RxD, NERR -0.3 – 6.0 V – P_8.1.9 Voltages at digital I/O pins: EN, VMAX_IO2 NSTB, TxD, RxD, NERR -0.3 – VIO + 0.3 V – P_8.1.10 Currents Max. output current on INH IINH_Max -5 – – mA – P_8.1.11 Max. output current on NERR and RxD IOut_Max -5 – 5 mA – P_8.1.12 Junction temperature Tj -40 – 150 °C – P_8.1.13 Storage temperature Tstg -55 – 150 °C – P_8.1.14 ESD immunity at CANH, CANL, VESD_HBM_CAN -10 WAKE and VBAT versus to GND – 10 kV HBM2) P_8.1.15 – 2 kV HBM2) P_8.1.16 3) P_8.1.17 3) P_8.1.18 Temperatures ESD resistivity ESD immunity at all other pins VESD_HBM ESD immunity at corner pins ESD immunity at any pin VESD_CDM_CP -2 -750 VESD_CDM_OP -500 – – 750 500 V V CDM CDM 1) Not subject to production test, specified by design. 2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS001 (1.5k Ω, 100 pF.) 3) ESD susceptibility, Charged Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM 5.3.1. Datasheet 8 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver General product characteristics Notes 1. 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. 2. 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. 4.2 Functional range Table 3 Functional range Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Supply voltages Battery supply voltage VBAT 5.5 – 40 V – P_8.2.1 Transmitter supply voltage VCC 4.5 – 5.5 V – P_8.2.2 Digital voltage reference VIO 3.0 – 5.5 V – P_8.2.3 Tj -40 – 150 °C – P_8.2.4 Thermal parameters Junction temperature Note: Within the functional or operating range, the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the Electrical Characteristics table. 4.3 Thermal resistance Note: This thermal data was generated according to JEDEC JESD51 standards. Please visit www.jedec.org. Table 4 Thermal resistance1) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Thermal resistance Junction to ambient PG-DSO-14 Junction to ambient RthJA_DSO14 – RthJA_TSON14 – 93 – K/W 2) 51 – K/W 2) P_8.3.1 Exposed Pad soldered P_8.3.2 to PCB Thermal shut-down junction temperature Thermal shut-down temperature TJSD 170 180 190 °C – P_8.3.3 Thermal shut-down hysteresis ∆T 5 10 20 K – P_8.3.4 1) Not subject to production test, specified by design. 2) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The Product (Chip+Package) was simulated on a 76.2 × 114.3 × 1.5 mm board with 2 inner copper layers (2 × 70 mm Cu, 2 × 35 mm Cu). Datasheet 9 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver High-Speed CAN functional description 5 High-Speed CAN functional description HS CAN is a serial bus system which 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 HS 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 specifications of a CAN network. The CAN transceiver is part of the physical layer specification. The TLE9252V supports both Bus Wake-up Pattern (WUP) functionality and Local Wake-up as defined by the ISO 11898 Standard. Additionally, the TLE9252V supports CAN Flexible data rate (CAN FD) transmission up to 5 Mbit/s. VIO = VCC = TxD = TxD VIO RxD = CANH = t CANH CANL CANL = VDiff = VCC Digital supply voltage Transmitter supply voltage Transmit data input from the microcontroller Receive data output to the microcontroller Bus level on the CANH input/output Bus level on the CANL input/output Differential voltage between CANH and CANL VDiff = VCANH – VCANL t VDiff VCC “dominant” receiver threshold “recessive” receiver threshold t RxD VIO tLoop(H,L) Figure 3 Datasheet tLoop(L,H) t High-Speed CAN bus signals and logic signals 10 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver High-Speed CAN functional description The TLE9252V 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 5 MBit/s. The characteristic 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 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. The HS CAN transceiver TLE9252V includes a receiver and a transmitter unit, allowing the transceiver to send data to the bus medium and monitors the data from the bus medium at the same time. The HS CAN transceiver TLE9252V 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 CANH and CANL pins. The receiver stage of the TLE9252V monitors the data on the CAN bus and converts it 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 in ISO 11898-2. Whether a data bit is dominant or recessive depends on the voltage difference between the CANH and CANL pins: VDiff = VCANH - VCANL. 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. In partially supplied CAN networks, participants have different power supply status. Some nodes are powered, other nodes are unpowered, or some other nodes are in Low-Power Mode. Therefore the TLE9252V provides the Sleep Mode in which the device is still able to recognize a Wake-Up Pattern or a local wake-up and signals the wake-up event to the external microcontroller via RxD and NERR output pin. The INH output pin allows to control an external device e.g. a voltage regulator. The HS CAN transceiver TLE9252V provides two Low-Power Modes Sleep Mode and Stand-by Mode with optimized very low current consumption. The voltage level on the digital input TxD and the digital output RxD is determined by the reference supply level at the VIO pin. Depending on the voltage level at the VIO pin, the signal levels on the logic pins (EN, NERR, NSTB, TxD and RxD) are compatible with microcontrollers having a 5 V or 3.3 V I/O supply. Usually the digital power supply VIO of the transceiver is connected to the I/O power supply of the microcontroller. Datasheet 11 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6 Modes of operation The TLE9252V supports five different Modes of operation (see Figure 4). Each mode with specific characteristics in terms of quiescent current, data transmission or failure diagnostic. For the mode selection the digital input pins EN and NSTB are used. Both digital input pins are event triggered. A mode change via the mode selection pins EN and NSTB is only possible if the power supply voltages VBAT OR VCC AND the digital reference voltage VIO is in the functional range. EN -> 1 NSTB = 1 Normal-operating Mode EN = 1 NSTB = 1 INH = „ON“ EN -> 1 NSTB -> 1 EN -> 0 NSTB = 1 EN -> 0 NSTB -> 0 EN = 1 NSTB -> 1 Receive-only Mode EN = 0 NSTB = 1 INH = „ON“ EN = 0 NSTB -> 1 VIO > VIO_UV EN = 0 NSTB -> 0 Stand-by Mode EN = 0 NSTB = 0 INH = „ON“ EN = 0 NSTB -> 1 VBAT > VBAT_UV OR VCC > VCC_UV EN = 1 NSTB -> 0 EN -> 0 NSTB -> 1 Go-to Sleep Command EN = 1 NSTB = 0 INH = „ON“ EN -> 1 NSTB -> 0 Power on Reset EN -> 1 NSTB = 0 INH = „OFF“ EN -> 0 t < tSLEEP NSTB = 0 For VBAT > VBAT_POD INH = „ON“ t > tSLEEP NSTB = 0 No Wake-up pending POR flag reset VBAT < VBAT_POD AND VCC < VCC_UV Sleep Mode EN = X NSTB = 0 INH = „OFF“ EN = 1 NSTB -> 1 VIO > VIO_UV Any Mode Figure 4 Datasheet VCC < VCC_UV AND tVCC_UV_T 1) expired AND tSilence expired Any Mode WUP OR LWU detected VIO < VIO_UV AND tVIO_UV_T 1) expired AND tSilence expired Any Mode -> : Rising or falling edge detected = : State remains stable Timer armed when VBAT > VBAT_UV 1) Modes of operation 12 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation The following operation modes are available on the TLE9252V: • Normal-operating Mode (Chapter 6.1) • Receive-only Mode (Chapter 6.2) • Stand-by Mode (Chapter 6.3) • Sleep Mode (Chapter 6.5) • Go-to-Sleep command (Chapter 6.4) Depending on the mode, the output driver stage, the receiver stage and the bus biasing are active or inactive. Table 5 shows the different operation modes depending on the logic signal on the input pins EN and NSTB with the related status of the INH pin and the bus biasing. Table 5 Overview operation modes Operation mode EN NSTB INH Bus biasing Normal-operating Mode 1 1 VBAT VCC/2 Receive-only Mode 0 1 VBAT VCC/2 Stand-by Mode 0 0 VBAT GND 1) Go-to-Sleep command 1 0 VBAT2) GND 1) Sleep Mode 0 0 High-Z GND 1) Power On Reset 0 0 follows VBAT Floating 1) Valid if tSilence has expired. The Bus biasing follows the Autonomous Bus Biasing described in Chapter 6.7. 2) INH stays connected to VBAT as long as tSLEEP has not expired OR if a wake-up is pending OR if the POR flag is set. If tSLEEP expires AND no Wake-up is pending AND the POR flag is reset the INH is High Z. Datasheet 13 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.1 Normal-operating Mode In Normal-operating Mode all functions of the TLE9252V are available and the device is fully functional. Data can be received from the HS CAN bus as well as transmitted to the HS CAN bus. • The transmitter is active and drives data stream on the TxD input pin to the bus pins CANH and CANL. • The receiver is active and converts the signals from the bus to a serial data stream on the RxD output pin. • The bus biasing is connected to VCC/2. • The TxD time-out function is enabled (see Chapter 7.5). • The overtemperature protection is enabled (see Chapter 7.6). • The RxD Recessive Clamping detection is enabled (see Chapter 7.7) • The undervoltage detection on VBAT, VCC and VIO are enabled (see Chapter 7.2). • The Local Wake-Up pin is disabled. • The INH output pin is connected to VBAT. • Local failure detection is active and failures are indicated at the NERR output pin (see Chapter 8). The TLE9252V enters Normal-operating Mode by setting the mode selection pins EN and NSTB to logical “high” (see Figure 4 and Table 5). Normal-operating Mode can be entered if VBAT or VCC is in the functional range and the reference voltage VIO is in the functional range. Possible mode changes are described in Figure 5. Receive-only Mode EN -> 1 NSTB = 1 Stand-by Mode EN -> 1 NSTB -> 1 Go-to-Sleep Command EN = 1 NSTB -> 1 Sleep Mode EN = 1 NSTB -> 1 Normal-operating Mode EN = 1 NSTB = 1 INH = „ON“ Figure 5 Mode changes in Normal-operating Mode Datasheet 14 EN -> 0 NSTB = 1 Receive-only Mode EN -> 0 NSTB -> 0 Stand-by Mode EN = 1 NSTB -> 0 Go-to-Sleep Command Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.2 Receive-only Mode In Receive-only Mode the transmitter is disabled and the receiver is enabled. The TLE9252V can receive data from the HS CAN bus, but cannot transmit data to the HS CAN bus. • The transmitter is disabled and the data available on the TxD input is blocked. • The receiver is active and converts the signals from the bus to a serial data stream on the RxD output pin. • The bus biasing is connected to VCC/2. • The TxD time-out function is disabled. • The RxD Recessive Clamping detection is disabled. • The overtemperature protection is disabled. • The undervoltage detection on VBAT, VCC and VIO is enabled (see Chapter 7.2). • The INH output pin is connected to VBAT. • The Local Wake-Up pin is disabled. • The Power-up flag is signalled at the pin NERR when coming from Standby, Sleep or Go-to Sleep Command mode. • The VCC undervoltage detection is active and an undervoltage is indicated at the NERR output pin when coming from Normal-operating Mode (see Chapter 8). Conditions for Entering Receive-only Mode: The TLE9252V enters Receive-only Mode by setting the mode selection pin EN to logical “low” and the NSTB to logical “high” (see Figure 4 and Table 5). Receive-only Mode can only be entered if VBAT or VCC is in the functional range and the reference voltage VIO is in the functional range. Possible mode changes are described in Figure 6. Normaloperating Mode Stand-by Mode EN -> 0 NSTB = 1 EN = 0 NSTB -> 1 Go-to-Sleep Command EN -> 0 NSTB -> 1 Sleep Mode EN = 0 NSTB -> 1 Figure 6 Datasheet Receive-only Mode EN = 0 NSTB = 1 INH = „ON“ EN -> 1 NSTB = 1 Normaloperating Mode EN = 0 NSTB -> 0 Stand-by Mode EN -> 1 NSTB -> 0 Go-to-Sleep Command Mode changes in Receive-only Mode 15 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.3 Stand-by Mode Stand-by Mode is a low power mode of the TLE9252V and the transmitter and the receiver are disabled. In Stand-by Mode the transceiver can neither send data to the HS CAN bus nor receive data from the HS CAN bus: • The transmitter is disabled and the data available on the TxD input is blocked. • The low power receiver is enabled and monitors the HS CAN bus for a valid Wake-Up Pattern. The RxD output pin and NERR display a wake-up event (Chapter 6.9). After Power On Reset RxD and NERR output pins are logical “high”. The default value of the RxD and NERR output pins are logical “high” if no wake-up event is pending. • The Local Wake-Up (LWU) pin is active. • After Power On Reset the bus biasing connected to GND. The conditions for the bus biasing are defined in Chapter 6.7. • TxD Dominant time-out function is disabled. • RxD Recessive Clamping detection is disabled. • The overtemperature protection is disabled. • The undervoltage detection on VBAT, VCC and VIO is enabled (see Chapter 7.2). • The INH output pin is connected to VBAT. • Local failure detection on NERR pin is disabled. Conditions for entering the Stand-by Mode: • After Power On Reset if VBAT or VCC is in the functional range for at least tPONthe TLE9252V will enter Standby Mode. Mode changes by host command are only possible if VIO is in the functional range. • Stand-by Mode will be entered if a wake-up (WUP or LWU) has been detected in Sleep Mode or Go-to-Sleep command. • The device is in Go-to-Sleep command and the EN pin goes logical “low” before the time t < tSLEEP has expired. • The device is in Normal-operating Mode or Receive-only Mode and the input pins EN and NSTB are set to logical “low”. Possible mode changes are described in Figure 7. Normaloperating Mode EN -> 0 NSTB -> 0 Receive-only Mode EN = 0 NSTB -> 0 Power On Reset Figure 7 Datasheet VBAT > VBAT_UV for at least tPON OR VCC > VCC_UV for at least tPON Go-to-Sleep Command EN -> 0 t < tSLEEP NSTB = 0 Sleep Mode WUP OR LWU detected Stand-by Mode EN = 0 NSTB = 0 INH = „ON“ EN -> 1 NSTB -> 1 Normaloperating Mode EN = 0 NSTB -> 1 Receive-only Mode EN -> 1 NSTB = 0 Go-to-Sleep Command Mode changes in Stand-by Mode 16 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.4 Go-to-Sleep command Go-to-Sleep command is a transition mode allowing external circuitry like a microcontroller to prepare the ECU to go to Sleep Mode. The TLE9252V stays for the maximum time t = tSLEEP in Go-to-Sleep command. After exceeding the time tSLEEP the device changes to Sleep Mode if no wake-up is pending AND the POR flag has been reset. If a wake-up is pending OR the POR flag is set the device remains in Go-to-Sleep command and INH is connected to VBAT. A wake-up is indicated on the RxD and NERR output pins. A mode change to Sleep Mode via Host Command is only possible via the Go-to-Sleep command. The following conditions are valid for the Go-to-Sleep command: • The transmitter is disabled and the data available on the TxD input is blocked. • The low power receiver is enabled and monitors the HS CAN bus for a valid Wake-Up Pattern. The RxD output pin and NERR indicate a wake-up event (Chapter 6.9). The default value of the RxD and NERR output pin are logical “high” if no wake-up event is pending. • The Local Wake-Up pin is active. • The bus biasing is GND if tSilence is expired. The conditions for the bus biasing are defined in Chapter 6.7. • The TxD time-out function is disabled. • The RxD Recessive Clamping detection is disabled. • The overtemperature protection is disabled. • The undervoltage detection on VBAT, VCC and VIO are enabled (see Chapter 7.2). • The INH output pin is connected to VBAT if the timer tSLEEP is not expired OR a wake-up is pending OR the POR is set. If tSLEEP is expired and no wake-up is pending and the POR Flag is reset, the INH output pin is high impedance. Conditions for entering the Go-to-Sleep command: Go-to-Sleep command is entered from Normal-operating Mode, Receive-only Mode and Stand-by Mode by setting the NSTB input pin to logical “low” AND EN input pin to logical “high”. Normaloperating Mode Receive-only Mode Stand-by Mode Figure 8 Datasheet EN = 1 NSTB -> 0 EN -> 1 NSTB -> 0 Go-to Sleep Command EN = 1 NSTB = 0 INH = „ON“ EN = 1 NSTB -> 1 Normaloperating Mode EN -> 0 NSTB -> 1 Receive-only Mode EN -> 0 t < tSLEEP NSTB = 0 Stand-by Mode t > tSLEEP NSTB = 0 No Wake-up pending POR Flag reset EN -> 1 NSTB = 0 Sleep Mode Mode changes in Go-to-Sleep command 17 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.5 Sleep Mode Sleep Mode is a low power mode of the TLE9252V. In Sleep Mode the current consumption is reduced to a minimum while the device is still able to detect a Wake-Up Pattern (WUP) on the HS CAN Bus OR a Local WakeUp event on the WAKE pin. The following conditions are valid for the Sleep Mode: • The transmitter is disabled and the data available on the TxD input is blocked. • The low power receiver is enabled and monitors the HS CAN bus for a valid Wake-Up Pattern. • The default value of the RxD and NERR output pin are logical “high” if no wake-up event is pending AND VIO is in the functional range (see Chapter 8). • The Local Wake-Up pin is active. • The bus biasing is connected to GND. The conditions for the bus biasing are defined in Chapter 6.7. • The TxD time-out function is disabled. • The RxD Recessive Clamping detection is disabled. • The overtemperature protection is disabled. • The undervoltage detection on VBAT is disabled. • The undervoltage detection on VCC is disabled. • The undervoltage detection on VIO is enabled (see Chapter 7.2.3). • The INH output pin is High-Z. Conditions for entering the Sleep Mode: • The Sleep Mode will be entered if VIO < VIO_UV AND tVIO_UV_T AND tSilence has been expired in Normal-operating Mode, Receive-only Mode, Stand-by Mode and Go-to-Sleep command. • The Sleep Mode will be entered if VCC < VCC_UV AND tVCC_UV_T AND tSilence has been expired in Normaloperating Mode, Receive-only Mode, Stand-by Mode and Go-to-Sleep command. • The Sleep Mode can be entered through Go-to-Sleep command if NSTB is set to logical “low” AND tSLEEP is expired AND no wake-up is pending AND the POR flag is reset. Any Mode Any Mode Go-to-Sleep Command VCC undervoltage AND tVCC_UV_T expired AND tSilence VIO undervoltage AND tVIO_UV_T expired AND tSilence Sleep Mode EN = X NSTB = 0 INH = „OFF“ t > tSLEEP NSTB = 0 No Wake-up pending POR Flag reset Figure 9 Mode changes in Sleep Mode 6.5.1 Mode change to Sleep Mode or Stand-by Mode EN = 1 NSTB -> 1 VIO > VIO_UV Normaloperating Mode EN = 0 NSTB -> 1 VIO > VIO_UV Receive-only Mode WUP OR LWU detected Stand-by Mode If the logical signal on the EN pin goes “low” before the transition time t < tSLEEP has been reached, the TLE9252V enters Stand-by Mode and the INH pin remains connected to VBAT. In the case the logical signal on Datasheet 18 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation the EN pin goes “low” after the transition time t > tSLEEP, the TLE9252V enters Sleep Mode with the expiration of tSLEEP. The signal on the HS CAN bus has no impact to the mode change. The mode of operation can be changed regardless if the CAN bus is dominant or recessive. NSTB tSLEEP EN t < tSLEEP tMode INH Normaloperating Mode Mode NSTB Go-To-Sleep command Stand-by Mode tSLEEP EN tMode INH Mode Normaloperating Mode Go-To-Sleep command Sleep Mode Assuming VIO and VCC in functional range AND no wake-up is pending AND POR flag is reset Figure 10 Datasheet Mode change to Stand-by Mode or Sleep Mode 19 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.5.2 Mode Change via EN and NSTB pin Besides a mode change from Sleep Mode to Stand-by Mode issued by a wake-up event, the mode of operation can be changed by changing the signals on the EN and NSTB input pins. Therefore the reference voltage VIO has to be in the functional range. According to the mode diagram (see Figure 4) the mode of operation can be changed directly from Sleep Mode to Receive-only Mode or Normal-operating Mode. In Sleep Mode once a rising edge on the pin NSTB is detected (VIO > VIO_UV) either Normal-operating Mode or Receive-only Mode will be entered, depending on the signal on the EN pin. The device will stay in Sleep Mode regardless of the signal on the EN input pin if NSTB is statically logical “low”. A mode change to from Sleep Mode to Stand-by Mode is only possible via a wake-up event. NSTB tSLP VLog_H VLog_L EN VLog_H VLog_L tWU_INH INH 0,7 VBAT tMode Mode Sleep Mode tMode Normaloperating Mode Go-To-Sleep command Sleep Mode Assuming VIO and VCC in functional range AND no wake-up is pending AND POR flag is reset Figure 11 Datasheet Mode change via EN and NSTB in Sleep Mode 20 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.6 Power On Reset In Power On Reset all functions of the TLE9252V are disabled and the device is switched off. • The transmitter and receiver are disabled. • The bus biasing is connected to High impedance. • The RxD Recessive Clamping detection is disabled • The TxD time-out function is disabled. • The overtemperature protection is disabled. • The undervoltage detection on VBAT, VCC and VIO is disabled. • The logical input pins are blocked. • RxD and NERR output pins are high impedance. • Local Wake-Up is disabled. • The INH output pin is connected to VBAT if VBAT > VBAT_POD OR VCC > VCC_UV. Conditions for entering the Power On Reset: • VBAT is below the VBAT_POD AND VCC is below VCC_UV threshold. Conditions for leaving the Power On Reset: • Once the power supply voltage VBAT OR VCC is within the functional range the transceiver enters Stand-by Mode within tPON. The internal Power On Reset flag will be set. After Power On Reset the TLE9252V enters Stand-by Mode. Power-up and power-down transition is described in Figure 12: Power on Reset Any Mode VBAT < VBAT_POD AND VCC < VCC_UV VBAT > VBAT_UV OR VCC > VCC_UV INH = „OFF“ For VBAT > VBAT_POD INH = „ON“ Figure 12 Datasheet Stand-by Mode EN = 0 NSTB = 0 INH = „ON“ Power-down and power-up behavior 21 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.7 Autonomous bus voltage biasing The autonomous bus voltage biasing was introduced for improving complete network EMC performance and increasing the reliability of communication performance in networks using CAN networks. The autonomous bus voltage biasing is enabled in all modes of Operation. The biasing unit will work independently from other transceiver functions and depends only on the status of detected network activity (tSilence). Figure 13 describes the behavior for active and for low power modes in Detail as well as the status after a power-on reset event. After Power On Reset Ini Bus Bias off Bus recessive > tFilter Wait Bus dominant > tFilter 1 Bus Bias off tWake expired Bus recessive > tFilter 2 Bus Bias off tWake expired Bus dominant > tFilter1) Tranceiver in: - Normal Operation Mode - Receive Only Mode 3 Bus Bias on Bus recessive > tFilter1) Bus dominant > tFilter1) tSilence expired AND Tranceiver in: - Sleep Mode - Stand-by Mode - Go-to-Sleep Command 4 Bus Bias on 1) Restart of tSilence Figure 13 tSilence expired AND Tranceiver in: - Sleep Mode - Stand-by Mode - Go-to-Sleep Command Autonomous Bus Voltage Biasing In low power modes, in case there has been no activity on the bus for longer than tSilence, the bus pins are biased towards GND via the internal resistors. With the detection of a valid Wake-Up Pattern (WUP), the internal biasing gets enabled and the biasing is stabilized via internal resistors towards 2.5 V . This activation is being performed within the time t > tWU_Bias after the WUP detection. Datasheet 22 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.8 Wake-Up functions There are several possibilities for a mode change from Sleep Mode to another operation mode: • Wake-Up Pattern (WUP) • Local Wake-Up (LWU) In typical applications the power supplies VCC and VIO are turned off in Sleep Mode. This means a mode change can only be caused by an external event as WUP OR LWU. The detection of a valid WUP or LWU triggers a mode change from Sleep Mode to Stand-by Mode. 6.8.1 Wake-up Pattern (WUP) Within the maximum wake-up time tWAKE, the Wake-Up Pattern consists of a dominant signal with the pulse width t > tFilter, followed by a recessive signal with the pulse width t > tFilter and another dominant signal with the pulse width t > tFilter (see Figure 14). t < tWake VDiff VDiff_LP_D t > tFilter t > tFilter VDiff_LP_R t > tFilter tWU t RxD VIO 30% of VIO t NERR VIO 30% of VIO t Stand-by Mode Figure 14 wake-up detected Wake-Up Pattern (WUP) The diagnostic output NERR and RxD will indicate a valid Wake-Up Pattern on the HS CAN bus. A Wake-Up Pattern is not valid under the following conditions: • A mode change to Normal-operating Mode OR Receive-only Mode is performed during the Wake-Up Pattern. • The maximum wake-up time tWAKE expires before a valid WUP has been detected. • The transceiver is powered down (VBAT < VBAT_POD AND VCC < VCC_POD). In Stand-by Mode the RxD output pin and the NERR diagnostic pin display the WUP detection (Details see Chapter 8). Datasheet 23 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.8.2 Local Wake-Up (LWU) The WAKE input pin works bi-sensitive, meaning it is able to detect a rising and falling edge as a wake-up event. Designed to withstand up to 40 V the WAKE pin can be directly connected to VBAT. The Local Wake-Up detection works for VBAT > VBAT_UV. The Local Wake-Up timings and behavior is described in Figure 15. t < tWAKE_filter t > tWAKE_filter VWAKE VWAKE_TH LWU detected t < tWAKE_filter t > tWAKE_filter VWAKE VWAKE_TH LWU detected Figure 15 Local Wake-Up The filter time tWAKE_filter is implemented to protect the TLE9252V against unintended Wake-Ups, caused by spikes on the WAKE pin. The wake-up thresholds VWAKE_TH depend on the level of the VBAT power supply. In Stand-by Mode the RxD output pin and the NERR diagnostic pin display the wake-up event (Details see Chapter 8). Once a LWU has been recognized in Sleep Mode the device goes to Stand-by mode and the INH output pin is connected to VBAT. Datasheet 24 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation 6.9 Wake-up: RxD and NERR behavior The RxD and NERR output pin will signal a wake up event to the microcontroller (see Chapter 8). In Sleep Mode, Stand-by Mode and Go-to-Sleep command by default values of RxD and NERR are logical “high” when no wake-up event has been detected. If a valid wake up pattern (WUP) is detected, RxD and NERR will be logical “low”. If a Local Wake-Up (LWU) is detected the RXD will be logical “low” and NERR will be logical “high”.If both, LWU and WUP have been detected, then the WUP detection has higher priority and RxD and NERR pin are set to logical “low”, regardless if a LWU event is pending. WUP detected Mode Sleep Mode Stand-by Mode tMode RxD RxD remains logical „low“ t NERR NERR remains logical „low“ t Assuming VCC OR VBAT is in the functional range Figure 16 RxD and NERR: WUP detection (VIO not supplied) WUP detected Mode Sleep Mode Stand-by Mode tMode RxD 30% VIO RxD remains logical „low“ t NERR 30% VIO NERR remains logical „low“ t Assuming VCC OR VBAT is in the functional range Figure 17 Datasheet RxD and NERR: WUP detection (permanently supplied VIO) 25 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Modes of operation LWU detected Mode Sleep Mode Stand-by Mode tMode RxD RxD remains logical „low“ t INH 0.7 x VBAT t VIO VIO_UV t NERR NERR goes logical „high“ Assuming VCC OR VBAT is in the functional range NERR goes logical „high“ when VIO > VIO_UV Figure 18 t RxD and NERR: LWU detection (VIO not supplied) LWU detected Mode Sleep Mode Stand-by Mode tMode RxD 30% VIO RxD goes logical „low“ t NERR NERR remains logical „high“ Assuming VCC OR VBAT is in the functional range Figure 19 Datasheet t RxD and NERR: LWU detection (permanently supplied VIO) 26 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions 7 Fail safe functions 7.1 Short Circuit Protection The CANH and CANL bus pins are proven to withstand a short circuit fault against GND and against the supply voltages. A current limiting circuit protects the transceiver against damages. 7.2 Undervoltage detection The TLE9252V has three independent undervoltage detections: VBAT, VCC and VIO. Undervoltage events may have impact on the functionality of the device and also may change the mode of operation (see Chapter 6). 7.2.1 Undervoltage and power-down detection on VBAT The power-down is detected if the power supply VBAT is below VBAT_POD for more than the glitch filter time tVBAT_filter. This glitch filter is implemented in order to prevent an undervoltage detection due to short voltage transients on VBAT. In case of an power-down detection on VBAT the TLE9252V is switched off (Power On Reset). If VBAT recovers (VBAT > VBAT_UV) the TLE9252V enters by default Stand-by Mode. If VBAT > VBAT_POD the INH output pin is connected to VBAT. Figure 20 shows the undervoltage scenario. VBAT VBAT_UV VBAT_POD tVBAT_filter tVBAT_filter tPON t Mode Any Mode 1) Assuming EN = NSTB = „0" Figure 20 Power On Reset Stand-by Mode 1) VCC = 0V VBAT power-down undervoltage detection (VCC not available) If an undervoltage is detected VBAT < VBAT_UV for t > tVBAT_filter the Local Wake-Up function is disabled (Figure 21). In Stand-by Mode, Go-to-Sleep Mode and Sleep Mode VBAT VBAT_UV VBAT_POD tVBAT_filter Local Wake Evaluation Figure 21 Datasheet tVBAT_filter tVBAT_filter tVBAT_Recovery t Enabled Disabled Enabled VBAT undervoltage detection 27 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions 7.2.2 Undervoltage detection on VCC An undervoltage on VCC is detected if the VCC supply is below VCC_UV for more than the glitch filter time tVCC_filter. This glitch filter is implemented in order to prevent an undervoltage detection due to short voltage transients on VCC. The following actions will be performed if a undervoltage has been detected: • The NERR pin switches from logical “high” to “low” (In Normal-operating Mode and Receive-only Mode). • The transmitter is disabled (Normal-operating Mode). The transmitter will be re-enabled if the VCC > VCC_UV for more than the glitch filter time t > tVCC_filter + tVCC_RECOVERY in Normal-operating Mode. Normal-operating Mode VIO and VBAT are within the functional range VCC VCC_UV tVCC_filter tVCC_filter tVCC_RECOVERY tVCC_filter t Transmitter: enabled disabled enabled „1" „0" „1" NERR Figure 22 VCC short-term undervoltage detection (VBAT in functional range) VIO and VBAT are within the functional range VCC VCC_UV tVCC_filter tVCC_filter tVCC_UV_T t Transmitter NERR Mode enabled „1" disabled „0" „1" Sleep Mode1) Normal-operating Mode 1) Assuming no bus communication monitored and tSilence has expired Figure 23 Datasheet VCC long-term undervoltage detection 28 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions The VCC long-term undervoltage timer tVCC_UV_T is armed once VBAT is in the functional range. If the VCC voltage drops below VCC_UV for longer than t > tVCC_UV_T AND no communication is monitored on the HS CAN Bus (tSilence is expired), this will trigger a mode change from any mode to Sleep Mode. If during the undervoltage event, communication is monitored and tSilence does not expire, the device remains in the current mode of operation. 7.2.3 Undervoltage detection on VIO An undervoltage on VIO is detected if the power supply VIO is below VIO_UV. As long as VIO < VIO_UV any signal on the logic input pins EN, NSTB and TxD will be blocked (see Figure 24). The default value of NERR and RxD if VIO > VIO_UV is logical “high”. VBAT OR VCC is within the functional range VIO VIO_UV tVIO_filter tVIO_filter tVIO_filter t Enabled Figure 24 Enabled Blocked VIO short-term undervoltage detection The VIO long-term undervoltage timer tVIO_UV_T is armed once VBAT is in the functional range. If the VIO voltage drops below VIO_UV for longer than t > tVIO_UV_T AND no communication is monitored on the HS CAN bus (tSilence is expired), this will trigger a mode change to Sleep Mode (see Figure 25). If during the undervoltage event, communication is monitored and tSilence does not expire, the device does not enter Sleep Mode. Normal-operating Mode: VBAT OR VCC is within the functional range VIO VIO_UV tVIO_filter tVIO_UV_T t Logic Input pin Mode enabled blocked Any Mode Sleep Mode 1) 1) Assuming no bus communication monitored and tSilence expired Figure 25 Datasheet VIO long-term undervoltage detection 29 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions In Low-power Mode (Stand-by Mode, Sleep Mode, Go-to-Sleep Command) bus communication requires at valid WUP detection (see Chapter 6.8.1). In Normal-operating Mode or Receive-only mode a single dominant period of t > tfilter is reflecting bus communication. 7.3 Dual Power Supply Solution The integrated Dual Power Supply Concept of TLE9252VSK offers the possibility to supply the device with VBAT OR/AND VCC pin. During VBAT battery supply cranking, the TLE9252VSK remains functional if VCC stays in the functional range. For further information please refer to TLE9252V Application Note. 7.4 Unconnected logic pins The integrated pull-up and pull-down resistors at the digital input pins force the TLE9252V into fail safe behavior if the input pins are not connected and floating (see Table 6). Table 6 Logical inputs when unconnected Input signal Default state Comment TxD “High” “Pull-up” current source to VIO EN “Low” “Pull-down” current source to GND NSTB “Low” “Pull-down” current source to GND 7.5 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 might have its root cause in a lockedup microcontroller or in a short circuit on the printed circuit board, for example. In Normal-operating Mode, a logical “low” signal on the TxD pin for the time t > tTXD_TO enables the TxD time-out feature and the TLE9252V disables the transmitter (see Figure 26) and sets the NERR output pin to logical “low”. The receiver is still active and the data on the bus continues to be monitored by the RxD output pin. Normal-operating Mode TxD t t > tTXD_TO TxD time-out CANH CANL TxD time–out released t RxD t NERR Figure 26 Datasheet TxD time-out function 30 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions Figure 26 illustrates how the transmitter is deactivated and re-activated.To release the transmitter after a TxD time-out event, the TLE9252V requires a signal change on the TxD input pin from logical “low” to logical “high”. 7.6 Overtemperature protection The TLE9252V has an integrated overtemperature detection to protect the TLE9252V against thermal overstress of the transmitter. The overtemperature protection is active in Normal-operating Mode and is disabled in all other Modes. The temperature sensor provides one temperature threshold: TJSD.When the temperature exceeds the threshold TJSD the transmitter is disabled. This overtemperature event will be signaled as logical “low” on the NERR output pin in Normal-operating Mode. After the device has cooled down, the transmitter is re-enabled and NERR returns to logical “high”. A hysteresis is implemented within the temperature sensor. TJSD (shut down temperature) TJ cool down ΔT switch-on transmitter t CANH CANL t TxD t RxD t Figure 27 Overtemperature protection 7.7 RxD Recessive Clamping detection The RxD Recessive Clamping detection is only active in Normal-operating Mode. In Normal-operating mode a permanent logical “high” signal on the RxD pin indicates the external microcontroller, there is no communication on the HS CAN bus. The microcontroller then can transmit a message to the CAN bus, only if the bus is in recessive state. In case the logical “high” signal on the RxD pin is caused by a a failure, like a short circuit RxD to VIO, the RxD signal does not reflect the signal on the HS CAN bus. In this case the microcontroller is able to place a message on the CAN bus at any time and corrupts the CAN messages on the bus. If the TLE9252V detects a logical “high” signal on the RxD pin while the bus is dominant for t > tRRC the RxD Recessive Clamping flag is set along with disabling the transmitter in Normal-operating Mode. In order to avoid any data collision on the CAN bus, the transmitter is disabled in Normal-operating Mode as long as the RxD-Recessive Clamping is present. In Normal-operating Mode the TLE9252V indicates the RxD clamping by a logical “low” signal on the NERR pin. On detection the transmitter is disabled immediately, so that the corrupted, nonsynchronized node is prevented from disturbing the remaining bus traffic. The corrupted node is then Datasheet 31 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Fail safe functions excluded from communication. The TLE9252V releases the failure flag and the output stage if the RxD clamping failure disappears. Whenever the pin RXD becomes dominant while the bus signal is dominant for t > tRRC the RxD Recessive Clamping flag is reset along with enabling the transmitter again in Normal-operating Mode (see Figure 28). Normal-operating Mode VIO and VBAT are within the functional range RxD tRRC t tRRC Vdiff 0.9V tRRC_NERR „1" tRRC_NERR „0" RxD Recessive Clamping detected „1" RxD Recessive Clamping reset Figure 28 RxD Recessive Clamping in Normal-operating Mode 7.8 Delay time for mode change The HS CAN transceiver TLE9252V changes the modes of operation within the time window tMode. During mode changes from low-power mode to Normal-operating Mode or low-power mode to Receive-only Mode, the RxD output pin is set to logical “high” and does not reflect the status on the CANH and CANL input pins. Datasheet 32 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Diagnosis-flags at NERR and RxD 8 Diagnosis-flags at NERR and RxD Table 7 Diagnosis-flags at NERR and RxD NERR1) RxD1) NSTB EN INH Mode 1 1 VBAT Normal-operating No failure detected 1 0 0 0 0 0 VBAT VBAT High-Z Receive-only Stand-by Sleep Event • VCC undervoltage • Overtemperature • TxD time-out • RxD recessive clamping 1 0 “Low”: bus Dominant, “High”: bus recessive No failure detected 1 2) 0 “Low”: bus Dominant, “High”: bus recessive WUP detected 0 0 LWU detected 1 0 No Wake-up event detected 1 1 No Wake-up event detected 1 1 0 0 • Power-Up-Flag OR • VCC undervoltage 3) No Wake-up event detected 1) Only valid if VIO is in the functional range. 2) Power-Up-Flag only available if VBAT or VCC is in the functional range for at least tPON. Power-Up-Flag will be cleared once entering Normal-operating Mode. 3) Valid if VIO = 0 V. Datasheet 33 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Diagnosis-flags at NERR and RxD Whenever the pin RXD becomes dominant while The HS CAN Bus is Dominant for t > tRRC, the RXD Recessive Clamping Flag is reset. Whenever the pin TxD Is dominant for t > tTxD_TO the TxD Dominant Flag is set. If VCC < VCC_UV for t > tVCC_filter the VCC undervoltage flag is set. If VCC recovers for t > tVCC_filter + tVCC_Recovery in Normaloperating Mode the NERR goes high and the VCC undervoltage flag is reset. If an overtemperature is detected the overtemperature flag is set. If no overtemperature is detected the Overtemperature Flag is reset. In Normal-operating mode And Receive-only mode failure recovery is reflected on the pin NERR going HIGH again. Local Failure Flags are: VCC Undervoltage, RxD Recessive Clamping, TxD Dominant Timeout, Overtemperature Normal-operating Mode: (NERR = 0) Transmitter blocked: TxD Dom. Timeout Overtemperature RxD Recessive Clamping VCC undervoltage NSTB = 1 EN = 0 NSTB = 1 EN = 1 Normal-operating Mode Local Failure Flags cleared NSTB = 1 EN = 1 Receive-only Mode The POR Flag is signaled at the pin NERR in Receive-only Mode mode when coming from Standby, Sleep or Go-to Sleep Command mode. It is set if The supply voltages VBAT OR VCC recover to functional range after a Power On Reset Event. The POR Flag is reset once the Normal-operating mode is entered. NSTB = 1 EN = 1 VCC undervoltage Flag is set in Receive-only Mode when VCC < VCC_UV for t > tVCC_filter and coming from Normaloperating Mode. If VCC recovers for t > tVCC_filter + tVCC_Recovery in Receive-only Mode the NERR goes high and the undervoltage flag is reset. Receive-only Mode: (NERR = 0) Power-up Flag VBAT < VBAT_POD Receive-only Mode: (NERR = 0) Transmitter blocked: VCC undervoltage Sleep Mode Go-To-Sleep Command Mode Stand-by Mode NSTB = 0 EN = 0 NSTB = 1 EN = 0 NSTB = 0 EN = 0 Sleep Mode/Stand-by Mode: Wake-up Source Flag NERR = 0: WUP NERR = 1: LWU NSTB = 0 EN = 0 As long as the POR flag OR WUP Flag OR LWU Flag is set a mode change via Host Command to Sleep Mode is not possible. Default flag settings: Power-Up Flag „SET“ Bus Wake-up Flag „RESET“ Local Wake-up Flag „RESET“ VCC Undervoltage Flag „RESET“ RxD Recessive Clamping „RESET“ Overtemperature Flag „RESET“ TxD Dominant Flag „RESET“ VBAT > VBAT_UV Figure 29 Datasheet Diagnosis flowchart 34 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9 Electrical characteristics 9.1 General timing parameter Table 8 General timing parameter Parameter Symbol Unit Note or Test Condition Min. Typ. Max. Number Power-up delay time tPON – – 500 µs See Figure 20 P_9.1.1 Delay time for mode change tMode – – 20 µs – P_9.1.2 CAN bus silence time-out tSilence 0.6 0.9 1.2 s – P_9.1.3 Min. hold time in Go-to-Sleep tSleep command 10 25 50 µs See Figure 10 P_9.1.4 RxD Recessive Clamping detection time tRRC – 1.2 1.8 µs See Figure 28 P_9.1.5 RxD Recessive Clamping indication delay tRRC_NERR - - 1 µs See Figure 28 P_9.1.6 9.2 Power supply interface 9.2.1 Current consumptions Table 9 Current consumptions Values 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Normal-operating Mode VBAT supply current IBAT_NM – 0.8 1.2 mA INH = not connected P_9.2.1 VCC supply current dominant bus signal ICC_NM_D – 35 48 mA – P_9.2.2 VCC supply current recessive bus signal ICC_NM_R – 1.0 4.0 mA – P_9.2.3 VIO supply current IIO_NM – 2.0 8.0 µA steady state, TxD= VIO P_9.2.4 VBAT supply current IBAT_ROM – 0.8 1.2 mA INH = not connected P_9.2.5 VCC supply current ICC_ROM – 33 50 µA TxD= VIO, VBAT > 12 V P_9.2.6 VIO supply current IIO_ROM – 2.0 8.0 µA steady state, TxD= VIO P_9.2.7 Receive-only Mode Datasheet 35 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics Table 9 Current consumptions (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Stand-by Mode VBAT supply current IBAT_STB – 22 50 µA INH = n.c., VBAT < 18 V, tSilence expired, WAKE = GND P_9.2.8 VCC supply current ICC_STB – 2.0 8.0 µA TxD= VIO, VBAT > 12 V P_9.2.11 VIO supply current IIO_STB – 2.0 5.0 µA TxD= VIO P_9.2.12 IBAT_SLP – 12.0 25.0 µA P_9.2.13 VCC = VIO = 0 V, VBAT < 18 V, bus biasing = GND, INH = n.c. VBAT supply current TJ < 85°C IBAT_SLP_85 – – 18.0 µA P_9.2.14 VCC = VIO = 0 V, INH = n.c., bus biasing = GND, VBAT < 18 V, TJ < 85°C 1); VCC supply current ICC_SLP – 0.5 5.0 µA TxD= VIO, VBAT > 12 V P_9.2.16 VIO supply current IIO_SLP – 2.0 5.0 µA TxD= VIO; P_9.2.17 Sleep Mode VBAT supply current 1) Not subject to production test, specified by design 9.2.2 Undervoltage detection Table 10 Undervoltage detection 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Undervoltage detection VBAT Undervoltage detection threshold VBAT_UV 4.8 5.1 5.5 V – P_9.2.18 Power-down threshold VBAT_POD 3.0 4.0 4.5 V Falling edge, VCC = 0V P_9.2.20 VBAT undervoltage glitch filter tVBAT_filter – – 50 µs See Figure 20 P_9.2.22 Undervoltage detection VCC Datasheet 36 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics Table 10 Undervoltage detection (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Undervoltage detection threshold VCC_UV 4.0 4.25 4.5 V See Figure 22 P_9.2.24 Undervoltage glitch filter tVCC_filter – – 10 µs See Figure 22 P_9.2.27 Undervoltage recovery time tVCC_RECOVERY 15 25 35 µs See Figure 22 P_9.2.28 Response time VCC for longterm undervoltage detection tVCC_UV_T 300 380 450 ms See Figure 23 P_9.2.29 Undervoltage detection threshold VIO_UV 2.4 2.65 3.0 V See Figure 24 P_9.2.30 Undervoltage glitch filter tVIO_filter – 10 µs See Figure 24 P_9.2.32 Response time VIO for longterm undervoltage detection tVIO_UV_T 380 450 ms See Figure 25 P_9.2.33 Undervoltage detection VIO 9.2.3 INH output Table 11 INH output 300 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Number Max. Unit Note or Test Condition Analog output INH Output voltage INH enabled VINH VBAT -0.8 – – V IINH = - 0.2 mA, Normal-operating Mode, Receive-only Mode, Stand-by Mode, Go-to-Sleep command P_9.2.34 Absolute leakage current –5.0 – µA VINH = 0 V, Sleep Mode P_9.2.35 Datasheet IINH_Leak – 37 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9.3 EN, NSTB and NERR Table 12 EN, NSTB and NERR 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Unit Min. Typ. Max. Note or Test Condition Number Mode control inputs EN, NSTB “High” level input range VMODE_H 0.7 x VIO – VIO + 0.3V V P_9.3.1 “Low” level input range VMODE_L -0.3 V – 0.3 x VIO V P_9.3.2 “High” level input current IMODE_H 20 – 220 µA VMode = VIO P_9.3.3 “Low” level input current IMODE_L -2.0 – 2.0 µA VMODE = 0 V P_9.3.4 “High” level output current INERR_H – -4.0 -1.0 mA VNERR = VIO - 0.4 V P_9.3.5 “Low” level output current INERR_L 1.0 4.0 – mA VNERR = 0.4 V P_9.3.6 Diagnosis output NERR 9.4 CAN controller interface Table 13 CAN controller interface 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Receiver output RxD “High” level output current IRxD_H – -4.0 -1.0 mA VRxD = VIO - 0.4 V, VDiff < 0.5 V P_9.4.1 “Low” level output current IRxD_L 1.0 4.0 – mA VRxD = 0.4 V, VDiff > 0.9 V P_9.4.2 “High” level input voltage threshold VTxD_H – 0.5 x VIO 0.7 x VIO V Recessive state P_9.4.4 “Low” level input voltage threshold VTxD_L 0.3 x VIO 0.4 x VIO – V Dominant state P_9.4.5 “High” level input current ITxD_H -2.0 – 2.0 µA VTxD = VIO P_9.4.7 “Low” level input current ITxD_L -200 – -20.0 µA VTxD = 0 V P_9.4.8 TxD permanent dominant time-out tTxD_TO 1 2.45 4 ms Normal-operating P_9.4.9 Mode, see Figure 26 Input capacitance CTxD – – 10 pF 1) Transmitter input TxD P_9.4.10 1) Not subject to production test, specified by design. Datasheet 38 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9.5 Transmitter Table 14 Transmitter 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. Bus transmitter CANH, CANL recessive output VCANL/H voltage 2.0 CANH, CANL recessive output VDiff_R_NM = -50 voltage difference VCANH - VCANL 2.5 3.0 V Normal-operating Mode, Receive-only Mode, VTxD = VIO, No load P_9.5.1 – 50 mV VTxD = VIO, No load P_9.5.2 CANH dominant output voltage Normal-operating Mode VCANH 2.75 – 4.5 V VTxD = 0 V, 50 Ω < RL < 65 Ω, 4.75V < VCC < 5.25 P_9.5.3 CANL dominant output voltage Normal-operating Mode VCANL 0.5 – 2.25 V VTxD = 0 V, 50 Ω < RL < 65 Ω, 4.75V < VCC < 5.25 P_9.5.4 CANH, CANL dominant output VDiff_D voltage difference: VDiff_D = VCANH - VCANL Normal-operating Mode 1.5 2.0 2.5 V VTxD = 0 V, 50 Ω < RL < 65 Ω, 4.75V < VCC < 5.25 P_9.5.5 CANH, CANL dominant output VDiff_D_EXT_BL voltage difference extended bus load VDiff_D = VCANH - VCANL Normal-operating Mode 1.4 – 3.3 V VTxD = 0 V, RL = 45 Ω < RL < 70Ω, 4.75V < VCC < 5.25 P_9.5.6 CANH, CANL dominant VDiff_D_HEXT_BL 1.5 output voltage difference high extended bus load Normal-operating mode VDiff = VCANH - VCANL – 5.0 V VTxD = 0 V, RL = 2240 Ω1), 4.75 V < VCC < 5.25, static behavior P_9.5.7 CANH, CANL recessive output voltage Sleep Mode VCANL_H -0.1 – 0.1 V No load P_9.5.8 CANH, CANL recessive output voltage difference Sleep Mode VDiff_SLP -0.2 – 0.2 V No load P_9.5.9 Driver symmetry VSYM = (VCANH + VCANL)/VCC VSYM 0.9 1.0 1.1 - RL = 60 Ω, C1 = 4.7 nF 1)2) P_9.5.10 Datasheet 39 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics Table 14 Transmitter (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. CANH short circuit current ICANHSC -115 -75 -40 mA VCANHshort = -3 V, t < tTXD_TO, VTxD = 0 V, VCC = 5 V P_9.5.11 CANL short circuit current ICANLSC 40 75 115 mA VCANLshort = 18 V, t < tTXD_TO, VTxD = 0 V, VCC = 5 V P_9.5.12 Leakage current CANH ICANH_Ik -5 – 5 µA VCC =VBAT = VIO = 0 V3), 0 V < VCANH ≤ 5 V, VCANH = VCANL P_9.5.14 Leakage current CANL ICANL_Ik -5 – 5 µA VCC =VBAT = VIO = 0 V3), 0 V < VCANL ≤ 5 V, VCANH = VCANL P_9.5.15 CANH, CANL output voltage difference slope, recessive to dominant Vdiff_slope_rd – – 70 V/µs 1) 30% to 70% of measured differential bus voltage, C2 = 100 pF, RL = 60 Ω, 4.75 V < VCC < 5.25 V P_9.5.16 CANH, CANL output voltage Vdiff_slope_dr difference slope, dominant to recessive – – 70 V/µs 1) P_9.5.17 30% to 70% of measured differential bus voltage, C2 = 100 pF, RL = 60 Ω, 4.75 V < VCC < 5.25 V 1) Not subject to production test, specified by design. 2) VSYM shall be observed during dominant and recessive state and also during the transition from dominant to recessive and vice versa, while TxD is stimulated by a square wave signal with a frequency of 1 MHz. 3) Additional requirement VIO = VCC connected via 47 kΩ to GND. 9.6 Receiver Table 15 Receiver 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; tBit(min) = 500 ns; tBit(Flash) = 200 ns; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition -12 – 12 V Number P_9.6.1 Bus receiver Common mode range Datasheet VCMR 40 – Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics Table 15 Receiver (cont’d) 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; tBit(min) = 500 ns; tBit(Flash) = 200 ns; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Min. Typ. Max. Unit Note or Test Condition – – 0.9 V VCMR P_9.6.2 Differential range dominant VDiff_D_Range Normal-operating Mode Receive-only Mode 0.9 – 8.0 V VCMR1) P_9.6.3 Differential receiver threshold recessive Normal-operating Mode Receive-only Mode VDiff_R 0.5 – – V VCMR P_9.6.4 Differential range recessive Normal-operating Mode, Receive-only Mode VDiff_R_Range -3.0 – 0.5 V VCMR1) P_9.6.5 Differential receiver hysteresis Normal-operating Mode, Receive-only Mode VDiff_Hys – 30 – mV VCMR1) P_9.6.6 Single ended internal resistance RCAN_H, RCAN_L 6 – 50 kΩ Recessive state -2 V < VCANH,L < 7 V P_9.6.7 Input resistance deviation between CANH and CANL ∆Ri -3.0 – 3.0 % Recessive state P_9.6.8 VCANH = VCANL = VCC = 5 V Differential internal resistance RDiff 12 – 100 kΩ Recessive state -2 V < VCANH,L < 7 V P_9.6.9 Input capacitance CANH, CANL versus GND CIn – 20 40 pF 2) Recessive state P_9.6.10 Differential input capacitance CInDiff – 10 20 pF 2) Recessive state P_9.6.11 Differential receiver threshold dominant Normal-operating Mode Receive-only Mode Symbol VDiff_D Values Number 1) Not subject to production test, specified by design. 2) Not subject to production test, specified by design, S2P-Method, f = 10 MHz. Datasheet 41 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9.7 Dynamic transceiver parameter Table 16 Propagation delay and CAN FD parameters 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; tBit(min) = 500 ns; tBit(Flash) = 200 ns; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number 80 175 215 ns CL = 100 pF, CRxD = 15 pF, see Figure 31 P_9.7.1 Received recessive bit width tBit(RxD)_2M at 2 MBit/s 400 500 550 ns CL = 100 pF, CRxD = 15 pF, tBit = 500 ns, see Figure 32 P_9.7.6 Received recessive bit width tBit(RxD)_5M at 5 MBit/s 120 200 220 ns CL = 100 pF, CRxD = 15 pF, tBit = 200 ns, see Figure 32 P_9.7.7 Transmitted recessive bit width at 2 MBit/s tBit(Bus)_2M 435 500 530 ns CL = 100 pF, CRxD = 15 pF, tBit = 500 ns (see Figure 32) P_9.7.8 Transmitted recessive bit width at 5 MBit/s tBit(Bus)_5M 155 200 210 ns CL = 100 pF, CRxD = 15 pF, tBit = 200 ns; (see Figure 32) P_9.7.9 Propagation delay characteristic Propagation delay, TxD to RxD tLoop Receiver timing symmetry at ∆tRec_2M 2 MBit/s ∆tRec_2M = tBit(RxD)_2M tBit(Bus)_2M -65 40 ns CL = 100 pF, CRxD = 15 pF, tBit = 500 ns, see Figure 32 P_9.7.10 Receiver timing symmetry at ∆tRec_5M 5 MBit/s ∆tRec_5M = tBit(RxD)_5M tBit(Bus)_5M -45 15 ns CL = 100 pF, CRxD = 15 pF, tBit = 200 ns, see Figure 32 P_9.7.11 Datasheet 42 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics VCC VIO 100 nF 100 nF TLE9252 TxD INH RINH RxD CRxD VBAT EN 100 nF NSTB CANH NERR RL/2 CL WAKE C1 RL/2 CANL Figure 30 GND Test circuit for dynamic characteristics TxD 0.7 x VIO 0.3 x VIO t td(L),T td(H),T VDiff 0.9 V 0.5 V t td(L),R td(H),R tLoop(H,L) tLoop(L,H) RxD 0.7 x VIO 0.3 x VIO t Figure 31 Timing diagrams for dynamic characteristics TxD 0.7 x VIO 0.3 x VIO 0.3 x VIO 5 x tBit VDiff tBit t tLoop(H,L) tBit(Bus) VDiff = VCANH - VCANL 0.9 V 0.5 V t tLoop(L,H) tBit(RxD) RxD 0.7 x VIO 0.3 x VIO t Figure 32 Datasheet Recessive bit time for five dominant bits followed by one recessive bit 43 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9.8 Wake-up 9.8.1 General wake-up timings Table 17 General wake-up timings 4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number INH wake-up delay time tWU_INH – – 30.0 µs VBAT = 14.0 V, RINH = 100 kΩ, see Figure 33 P_9.8.1 Bias reaction time tWU_Bias – – 100 µs See Figure 33 P_9.8.2 LWU, WUP detected VBAT INH pin 70% of VBAT t tWU_INH tMode Mode Sleep Mode Stand-by Mode tWU_Bias Bus Biasing Figure 33 Datasheet Connected to GND 2,5V Wake-up detection 44 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Electrical characteristics 9.8.2 WUP detection characteristics Table 18 WUP detection 4.75 V < VCC < 5.25 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Min. Typ. Max. Unit Note or Test Condition 1.15 – 8.0 V VCMR 1) P_9.8.4 Differential input threshold VDiff_D_SLP dominant low power modes – – 1.15 V VCMR P_9.8.5 +Differential range recessive VDiff_R_SLP_Range low power modes -3.0 – 0.4 V VCMR 1) P_9.8.6 Differential input threshold recessive low power modes VDiff_R_SLP 0.4 – – V VCMR P_9.8.7 CAN activity filter time tFilter 0.5 – 1.8 µs Figure 14 P_9.8.9 Bus wake-up time-out tWAKE 0.8 – 10.0 ms Figure 14 P_9.8.10 Bus wake-up delay time tWU – – 5.0 µs Stand-by Mode, Figure 14 P_9.8.11 Differential range dominant low power modes Values VDiff_D_SLP_Range Number 1) Not subject to production test, specified by design. 9.8.3 Local Wake-Up Table 19 Local Wake-Up 4.75 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; 5.5 V < VBAT < 40 V; RL = 60 Ω; -40°C < TJ < 150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Local Wake-Up detection threshold VWAKE_TH 0.35 x VBAT 0.5 x VBAT 0.65x VBAT V 5.5 V < VBAT < 32 V P_9.8.12 Local Wake-Up detection threshold VWAKE_TH 0.25 x VBAT 0.5 x VBAT 0.75 x VBAT V 32 V < VBAT < 40 V P_9.8.13 “High” level input current (pull-up) IWAKE_H -20 -9 -2 µA P_9.8.15 “Low” level input current (pull-down) IWAKE_L 2 9 20 µA P_9.8.16 Wake pulse filter time tWAKE_Filter 10 25 70 µs Datasheet 45 Figure 15 P_9.8.17 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Application information 10 Application information 10.1 ESD robustness according to IEC61000-4-2 Tests for ESD robustness 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 20 ESD robustness according to IEC61000-4-2 Performed Test Result Unit Remarks Electrostatic discharge voltage at pin CANH and ≥ +9 CANL, VBAT, WAKE versus GND kV 1) Positive pulse Electrostatic discharge voltage at pin CANH and ≤ -9 CANL, VBAT, WAKE versus GND kV 1) Negative pulse 1) ESD susceptibility “ESD GUN” according to GIFT / ICT paper: “EMC Evaluation of CAN Transceivers, version 03/02/IEC TS62228”, section 4.3. (DIN EN61000-4-2). Tested by external test facility (IBEE Zwickau, EMC test report Nr. 02-07-17, Nr. 11-08-17). 10.2 Voltage adaption to the microcontroller supply To adapt the digital input and output levels of the TLE9252V to the I/O levels of the microcontroller, connect the power supply pin VIO to the microcontroller voltage supply (see Figure 34). Note: Datasheet In case the digital supply voltage VIO is not required in the application, connect the digital supply voltage VIO to the transmitter supply VCC. 46 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Application information 10.3 Application example VBAT I Q1 22 uF TLE4476D CANH CANL GND EN 100 nF Q2 22 uF 3 VCC 120 Ohm 100 nF 100 nF 5 VIO TLE9252V 7 10 13 TxD INH RxD 12 4 CANH CANL NERR WAKE Q1 Out 6 EN Out 8 In 9 3.3k Ohm GND 20k Ohm 100 nF Q2 22 uF 3 VCC 100 nF 100 nF 5 VIO TLE9252V 7 10 13 INH TxD RxD 12 optional: common mode choke CANH CANL VIO 1 Out 4 In 14 VBAT NSTB CANH EN 120 Ohm CANL NERR WAKE Out 6 Out Microcontroller e.g. XC22xx 8 In 9 GND 2 3.3k Ohm GND 20k Ohm example ECU design Figure 34 Application circuit 10.4 Further application information • Please contact us for information regarding the pin FMEA. • Existing application note of TLE9252V: www.infineon.com/TLE9252V-AN. • For further information you may visit: http://www.infineon.com/ Datasheet Microcontroller e.g. XC22xx 22 uF TLE4476D GND In NSTB GND 2 I Out 14 VBAT EN optional: common mode choke VIO 1 47 Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Package outline 11 Package outline Figure 35 PG-DSO-14 Figure 36 PG-TSON-14 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. Datasheet 48 Dimensions in mm Rev. 1.11 2019-10-17 TLE9252V High-Speed CAN FD Transceiver Revision history 12 Revision history Revision Date Changes 1.11 Datasheet updated: 2019-10-17 • Editorial changes • Updated bus transmitter table – added P_9.5.16 and P_9.5.17 (no product change) – tightened P_9.5.5 and P_9.5.2 – tightened P_9.6.10 and P_9.6.11 by additional footnote • Updated dynamic transceiver table – tightened P_9.7.1 • 1.1 1.01 1.0 Datasheet 2018-10-04 2018-01-09 2017-12-21 Updated package outline (no product change) Data Sheet updated: • Editorial changes • IMODE_H max. value lowered from 250µA to 220µA see P_9.3.3 Datasheet updated: • Figure 33 corrected; • Figure 23 corrected and added description for NERR output pin; • Added Application Note Link in Chapter 10.4 Datasheet created 49 Rev. 1.11 2019-10-17 Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2019-10-17 Published by Infineon Technologies AG 81726 Munich, Germany © 2019 Infineon Technologies AG. All Rights Reserved. Do you have a question about any aspect of this document? Email: erratum@infineon.com Document reference Z8F55318175 IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics ("Beschaffenheitsgarantie"). With respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, 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. In addition, any information given in this document is subject to customer's compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer's products and any use of the product of Infineon Technologies in customer's applications. The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of customer's technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. 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 products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury.