Data Sheet 1 Rev. 1.1
www.infineon.com/automotive-transceiver 2018-05-23
TLE9251V
High Speed CAN FD Transceiver
1 Overview
Qualified for Automotive Applications according to AEC-Q100
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 for CAN FD data frames up to 5 MBit/s
• Very low electromagnetic emission (EME) allows the use without
additional common mode choke
•VIO input for voltage adaption to the µC interface (3.3V & 5V)
• Bus Wake-up Pattern (WUP) function with optimized filter time for
worldwide OEM usage
• Stand-by mode with minimized quiescent current
• Transmitter supply VCC can be turned off in Stand-by Mode for additional quiescent current savings
• Wake-up indication on the RxD output
• Wide common mode range for electromagnetic immunity (EMI)
• Excellent ESD robustness +/-8kV (HBM) and +/-11kV (IEC 61000-4-2)
• Extended supply range on the VCC and VIO supply
• CAN short circuit proof to ground, battery, VCC and VIO
• TxD time-out function
• Very low CAN bus leakage current in power-down state
• Overtemperature protection
• Protected against automotive transients according ISO 7637 and SAE J2962-2 standards
• Green Product (RoHS compliant)
• Small, leadless TSON8 package designed for automated optical inspection (AOI)
• AEC Qualified
Potential applications
• Gateway Modules
• Body Control Modules (BCM)
• Engine Control Unit (ECUs)
PG-TSON-8
PG-DSO-8
Data Sheet 2 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Overview
Description
The TLE9251V is the latest Infineon high-speed CAN transceiver generation, used inside HS CAN networks for
automotive and also for industrial applications. It is designed to fulfill the requirements of ISO 11898-2 (2016)
physical layer specification and respectively also the SAE standards J1939 and J2284.
The TLE9251V is available in a PG-DSO-8 package and in a small, leadless PG-TSON-8 package. Both packages
are RoHS compliant and halogen free. Additionally the PG-TSON-8 package supports the solder joint
requirements for automated optical inspection (AOI).
As an interface between the physical bus layer and the HS CAN protocol controller, the TLE9251V protects the
microcontroller against interferences generated inside the network. A very high ESD robustness and the
perfect RF immunity allows the use in automotive application without adding additional protection devices,
like suppressor diodes for example.
While the transceiver TLE9251V is not supplied the bus is switched off and illustrate an ideal passive behavior
with the lowest possible load to all other subscribers of the HS CAN network.
Based on the high symmetry of the CANH and CANL output signals, the TLE9251V provides a very low level of
electromagnetic emission (EME) within a wide frequency range. The TLE9251V fulfills even stringent EMC test
limits without additional external circuit, like a common mode choke for example.
The perfect transmitter symmetry combined with the optimized delay symmetry of the receiver enables the
TLE9251V to support CAN FD data frames. Depending on the size of the network and the along coming
parasitic effects the device supports bit rates up to 5 MBit/s.
Dedicated low-power modes, like Stand-by mode provide very low quiescent currents while the device is
powered up. In Stand-by mode the typical quiescent current on VIO is below 10 µA while the device can still be
waked up by a bus signal on the HS CAN bus.
Fail-safe features like overtemperature protection, output current limitation or the TxD time-out feature
protect the TLE9251V and the external circuitry from irreparable damage.
Type Package Marking
TLE9251VLE PG-TSON-8 9251V
TLE9251VSJ PG-DSO-8 9251V
Data Sheet 3 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 High-speed CAN functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 High-speed CAN physical layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1 Normal-operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Forced-receive-only mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4 Power-down state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Changing the mode of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1 Power-up and power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.2 Mode change by the STB pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.3 Mode changes by VCC undervoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4 Remote wake-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Fail safe functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 Short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.2 Unconnected logic pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.3 TxD time-out function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.4 Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.5 Delay time for mode change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.2 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.3 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.1 Functional device characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.2 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.1 ESD robustness according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.2 Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.3 Voltage adaption to the microcontroller supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.4 Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table of contents
Data Sheet 4 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Block diagram
2 Block diagram
Figure 1 Functional block diagram
Driver
Temp-
Protection Mode
Control
7
CANH
6
CANL
2
GND
TxD
3VCC
STB
VIO
RxD
Timeout
Transmitter
Receiver
=
VCC/2
Wake-Logic
& Filter
Mux
Normal-mode Receiver
Low-power Receiver
5
1
8
4
VIO
Bus-biasing
GND
N.C.
Data Sheet 5 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Pin configuration
3 Pin configuration
3.1 Pin assignment
Figure 2 Pin configuration
3.2 Pin definitions
Table 1 Pin definitions and functions
Pin No. Symbol Function
1TxDTransmit Data Input;
Internal pull-up to VIO, “low” for “dominant” state.
2GNDGround
3VCC Transmitter Supply Voltage;
100 nF decoupling capacitor to GND required,
VCC can be turned off in stand-by mode.
4RxDReceive Data Output;
“low” in “dominant” state.
5VIO Digital Supply Voltage;
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.
6CANLCAN Bus Low Level I/O;
“low” in “dominant” state.
7CANHCAN Bus High Level I/O;
“high” in “dominant” state.
8STBStand-by Input;
Internal pull-up to VIO, “low” for Normal-operating mode.
PAD – Connect to PCB heat sink area.
Do not connect to other potential than GND.
TxD STB
VIO
1
2
3
4
8
7
6
5
GND
VCC
RxD
CANH
CANL
1
2
3
4
8
7
6
5
TxD
GND
VCC
RxD
STB
VIO
CANH
CANL
(Top-side x-ray view)
PAD
Data Sheet 6 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
High-speed CAN functional description
4 High-speed CAN functional description
HS 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
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. Several different physical layer
standards of CAN networks have been developed in recent years. The TLE9251V is a high-speed CAN
transceiver with a dedicated bus wake-up function as defined in the latest ISO 11898-2 HS CAN standard.
4.1 High-speed CAN physical layer
Figure 3 High-speed CAN bus signals and logic signals
TxD
VIO
t
t
VCC
CANH
CANL
t
VCC
VDiff
RxD
VIO
t
VIO = Digital supply voltage
VCC = Transmitter supply voltage
TxD = Transmit data input from
the microcontroller
RxD = Receive data output to
the microcontroller
CANH = Bus level on the CANH
input/output
CANL = Bus level on the CANL
input/output
VDiff = Differential voltage
between CANH and CANL
VDiff = VCANH – VCANL
“dominant” receiver threshold
“recessive” receiver threshold
tLoop(H,L) tLoop(L,H)
Data Sheet 7 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
High-speed CAN functional description
The TLE9251V 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 both pins operate as an input and output. The
RxD and TxD pins are the interface to the microcontroller. The pin TxD 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 TLE9251V 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 TLE9251V
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 TLE9251V 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 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.
“Partially-supplied” high-speed CAN networks are those where 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 TLE9251V is designed to support “partially-supplied” networks. In power-down
state, the receiver input resistors are switched off and the transceiver input has a high resistance.
For permanently supplied ECU's, the HS CAN transceiver TLE9251V provides a Stand-by mode. In Stand-by
mode, the power consumption of the TLE9251V is optimized to a minimum, while the device is still able to
recognize wake-up patterns on the CAN bus and signal the 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 digital power supply VIO
of the transceiver is connected to the I/O power supply of the microcontroller (see Figure 18).
Data Sheet 8 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Modes of operation
5 Modes of operation
The TLE9251V supports three different modes of operation (see Figure 4 and Table 2):
• Normal-operating mode
•Stand-by mode
•Forced-receive-only mode
Mode changes are either triggered by the mode selection input pin STB or by an undervoltage event on the
transmitter supply VCC. Wake-up events on the HS CAN bus are indicated on the RxD output pin in Stand-by
mode, but no mode change is triggered by a wake-up event. An undervoltage event on the digital supply VIO
powers down the TLE9251V.
Figure 4 Mode state diagram
Table 2 Modes of operation
Mode STB VIO VCC Bus Bias Transmitter Normal-mode
Receiver
Low-power
Receiver
Normal-operating “low” “on” “on” VCC/2 “on” “on” “off”
Forced-receive-only “low” “on” “off” GND “off” “on” “off”
Stand-by “high” “on” “X” GND “off” “off” “on”
Power-down state “X” “off” “X” floating “off” “off” “off”
STB VCC VIO
Power-down
state
“X”“X” “off”
Normal-operating
mode
STB VCC VIO
0 “on” “on”
Forced-
receive-only
mode
STB VCC VIO
0 “off” “on”
Stand-by
mode
STB VCC VIO
1 “X” “on”
VIO “on”
VCC “off”
STB “0”
VIO “on”
VCC “on”
STB “0”
VIO “on”
VCC “X”
STB “1”
VIO “on”
VCC “off”
STB “0”
VIO “on”
VCC “X”
STB “1”
VIO “on”
VCC “on”
STB “0”
VIO “on”
VCC “on”
STB “0”
VIO “on”
VCC “X”
STB “1”
Data Sheet 9 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Modes of operation
5.1 Normal-operating mode
In Normal-operating mode the transceiver TLE9251V sends and receives data from the HS CAN bus. All
functions are active (see also Figure 4 and Table 2):
• The transmitter is active and drives the serial data stream on the TxD input pin to the bus pins CANH and
CANL.
• The normal-mode receiver is active and converts the signals from the bus to a serial data stream on the RxD
output.
• The low-power receiver is turned off.
• The RxD output pin indicates the data received by the normal-mode receiver.
• The bus biasing is connected to VCC/2.
• The STB input pin is active and changes the mode of operation.
• The TxD time-out function is enabled and disconnects the transmitter in case a time-out is detected.
• The overtemperature protection is enabled and disconnects the transmitter in case an overtemperature is
detected.
• The undervoltage detection on VCC is enabled and triggers a mode change to Forced-receive-only in case
an undervoltage event is detected.
• The undervoltage detection on VIO is enabled and powers down the device in case of detection.
Normal-operating mode is entered from Stand-by mode and Forced-receive-only mode, when the STB input
pin is set to logical “low”.
Normal-operating mode can only be entered when all supplies are available:
• The transmitter supply VCC is available (VCC >VCC(UV,R)).
• The digital supply VIO is available (VIO >VIO(UV,R)).
5.2 Forced-receive-only mode
The Forced-receive-only mode is a fail-safe mode of the TLE9251V, which will be entered when the transmitter
supply VCC is not available and the STB pin is logical “low”. The following functions are available (see also
Figure 4 and Table 2):
• The transmitter is disabled and the data available on the TxD input is blocked.
•The normal-mode receiver is enabled.
• The low-power receiver is turned off.
• The RxD output pin indicates the data received by the normal-mode receiver.
• The bus biasing is connected to GND.
• The STB input pin is active and changes the mode of operation to Stand-by mode, if logical “high”.
• The TxD time-out function is disabled.
• The overtemperature protection is disabled.
• The undervoltage detection on VCC is active.
• The undervoltage detection on VIO is enabled and powers down the device in case of detection.
• Forced-receive-only mode is entered from power-down state if the STB input pin is set to logical “low” and
the digital supply VIO is available (VIO >VIO(UV,R)).
• Forced-receive-only mode is entered from Normal-operating mode by an undervoltage event on the
transmitter supply VCC.
Data Sheet 10 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Modes of operation
5.3 Stand-by mode
The Stand-by mode is the power save mode of the TLE9251V. In Stand-by mode most of the functions are
turned off and the TLE9251V is monitoring the bus for a valid wake-up pattern (WUP). The following functions
are available (see also Figure 4 and Table 2):
• The transmitter is disabled and the data available on the TxD input is blocked.
• The normal-mode receiver is disabled.
• The low-power receiver is turned on and monitors the bus for a valid wake-up pattern (WUP).
• The RxD output pin follows the Bus signal after WUP detection.
• The bus biasing is connected to GND.
• The STB input pin is active and changes the mode of operation.
• The TxD time-out function is disabled.
• The overtemperature protection is disabled.
• The undervoltage detection on VCC is disabled. In Stand-by mode the device can operate without the
transmitter supply VCC.
• The undervoltage detection on VIO is enabled and powers down the device in case of detection.
The Stand-by mode can be entered from Normal-operating mode and Forced-receive-only mode by setting
the STB pin to logical “high”.
To enter Stand-by mode the digital supply VIO needs to be available (VIO >VCC(UV,R)).
5.4 Power-down state
Independent of the transmitter supply VCC and of the status at STB input pin the TLE9251V is powered down if
the supply voltage VIO < VIO(UV,F) (see Figure 4).
In the power-down state the differential input resistors of the receiver are switched off. The CANH and CANL
bus interface of the TLE9251V is floating and acts as a high-impedance 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 HS CAN network. In power-down state the transceiver is an invisible node to
the bus.
Data Sheet 11 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Changing the mode of operation
6 Changing the mode of operation
6.1 Power-up and power-down
The HS CAN transceiver TLE9251V powers up by applying the digital supply VIO to the device (VIO >VIO(U,R)).
After powering up, the device enters one out of three operating modes (see Figure 5 and Figure 6).
Depending on the condition of the transmitter supply voltage VCC and the mode selection pin STB the device
can enter every mode of operation after the power-up:
•VCC is available and STB input is set to “low” - Normal-operating mode
•VCC is disabled and the STB input is set to “low” - Forced-receive-only mode
• STB input is set to “high” - Stand-by mode
The device TLE9251V powers down when the VIO supply falls below the undervoltage detection threshold
(VIO <VIO(U,F)), regardless if the transmitter supply VCC is available or not. The power-down detection is active in
every mode of operation.
Figure 5 Power-up and power-down
Figure 6 Power-up and power-down timings
STB VCC VIO
power-down
state
“X”“X” “off”
Normal-operating
mode
STB VCC VIO
0 “on” “on”
Forced-
receive-only
mode
STB VCC VIO
0 “off” “on”
Stand-by
mode
STB VCC VIO
1 “X” “on”
VIO “on”
VCC “off”
STB “0”
VIO “on”
VCC “on”
STB “0”
VIO “on”
STB “1”
VIO “off”
VIO “off”
VIO “off”
VIO “off” “blue” -> indicates the event triggering the
power-up or power-down
“red” -> indicates the condition which is
required to reach a certain operating mode
t
STB
“X” = don’t care
“high” due the internal
pull-up resistor
1)
VIO
t
VIO undervoltage monitor
VIO(UV,F)
VIO undervoltage monitor
VIO(UV,R)
transmitter supply voltage VCC = “don’t care”
Power-down stateany mode of operation Stand-by mode
tPON
hysteresis
VIO(UV,H)
tPOFF
1) assuming no external signal applied
"0" for Normal-operating mode
"1" for Stand-by mode
Data Sheet 12 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Changing the mode of operation
6.2 Mode change by the STB pin
When the TLE9251V is supplied with the digital voltage VIO the internal logic works and mode change by the
mode selection pin STB is possible.
By default the STB input pin is logical “high” due to the internal pull-up current source to VIO. Changing the STB
input pin to logical “low” in Stand-by mode triggers a mode change to Normal-operating mode (see Figure 7).
To enter Normal-operating mode the transmitter supply VCC needs to be available.
Stand-by mode can be entered from Normal-operating mode and Forced-receive-only mode by setting the
STB pin to logical “high”. While changing the mode of operation from Normal-operating mode or Forced-
receive-only mode to Stand-by mode, the transceiver TLE9251V turns off the transmitter and switches from
the normal-mode receiver to the low-power receiver. Entering Forced-receive-only mode from Stand-by
mode is not possible by the STB pin. The device remains in Stand-by mode independently of the VCC supply
voltage.
Figure 7 Mode selection by the STB pin
Data Sheet 13 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Changing the mode of operation
6.3 Mode changes by VCC undervoltage
When the transmitter supply VCC (VCC <VCC(U/F)) is in undervoltage condition, the TLE9251V might not be able to
provide the correct bus levels on the CANH and CANL output pins. To avoid any interference with the network
the TLE9251V blocks the transmitter and changes the mode of operation when an undervoltage event is
detected (see Figure 8 and Figure 9).
In Normal-operating mode an undervoltage event on transmitter supply VCC (VCC <VCC(U/F)) triggers a mode
change to Forced-receive-only mode.
In Forced-receive-only mode the undervoltage detection VCC (VCC <VCC(U/F)) is enabled. In Stand-by mode the
undervoltage detection is disabled. In these modes the TLE9251V can operate without the transmitter supply
VCC.
Figure 8 Mode changes by undervoltage events on VCC
Figure 9 Undervoltage on the transmitter supply VCC
STB V
CC
V
IO
power-down
state
“X”“X” “off”
Normal-operating
mode
STB V
CC
V
IO
0 “on” “on”
Forced-
Receive-only
mode
STB V
CC
V
IO
0 “off” “on”
Stand-by
mode
STB V
CC
V
IO
1 “X” “on”
V
IO
“on”
V
CC
“off”
STB “0”
V
IO
“on”
V
CC
“on”
STB “0”
Forced-receive only modeNormal-operating mode Normal-operating mode
t
STB
digital supply voltage VIO = “on”
tDelay(UV)_R
VCC
hysteresis
VCC(UV,H)
t
VCC undervoltage monitor
VCC(UV,F)
VCC undervoltage monitor
VCC(UV,R)
tDelay(UV)_F
Assuming the STB remains “low”, for example the STB pin is
connected to GND.
Data Sheet 14 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Changing the mode of operation
6.4 Remote wake-up
The TLE9251V has a remote wake-up feature also called bus wake-up feature according to the ISO 11898-2
(2016). In Stand-by mode the low-power receiver monitors the activity on the CAN bus and in case it detects a
wake-up pattern it indicates the wake-up signal on the RxD output pin.
The low-power receiver is supplied by the digital supply VIO and therefore in Stand-by mode the transmitter
supply VCC can be turned off.
In Stand-by mode a wake-up event on the HS CAN is flagged on the RxD output pin (see Figure 11). The
transceiver remains in the currently selected mode of operation. No mode change is applied due to the wake-
up event (see Figure 10).
Figure 10 Remote wake-up
A bus wake-up is triggered by a dedicated valid wake-up pattern. The defined wake-up pattern avoids any
false wake-up by spikes which might be on the HS CAN bus or by a permanent bus shortage.
The internal wake-up flag will be reset when:
• A mode change to Normal-operating mode is applied during the wake-up pattern.
• A power-down event occurs on the digital supply VIO.
Within the maximum wake-up time tWAKE, the wake-up pattern contents a “dominant” signal with the pulse
width tFilter, followed by a “recessive” signal with the pulse width tFilter and another “dominant” signal with the
pulse width tFilter (see Figure 11). The RxD output remains logical “high” as long no wake-up event has been
detected.
Stand-by
mode
STB VCC VIO
1 “X” “on”
VIO “on”
STB “1”
Bus wake-up
pattern
Indication on
RxD if wake-
up pattern
detected
Data Sheet 15 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Changing the mode of operation
Figure 11 Remote wake-up signal
After a wake-up event has been detected the RxD output follows the CANH/CANL input pins. “Dominant” and
“recessive” signals are indicated on the RxD output as logical “high” and “low” with the delay of tWU as long
their pulse width exceeds the filter time tFilter (see also Figure 12).
Figure 12 RxD signal after wake-up detection
t
VDiff
RxD
t > tFilter
t
VIO
30% of VIO
VDiff_LP_D
VDiff_LP_R
t < tWake
wake-up
detected
t > tFilter t > tFilter
tWU
t
VDiff
RxD
t
wake-up
detected
tWU
tWU
tWU
VDiff_LP_D
VDiff_LP_R
Data Sheet 16 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Fail safe functions
7 Fail safe functions
7.1 Short circuit protection
The CANH and CANL bus pins are proven to cope with a short circuit fault against GND and against the supply
voltages. A current limiting circuit protects the transceiver against damages. If the device is heating up due to
a continuous short on the CANH or CANL, the internal overtemperature protection switches off the bus
transmitter.
7.2 Unconnected logic pins
All logic input pins have an internal pull-up current source to VIO. In case the VIO and VCC supply is activated and
the logical pins are open, the TLE9251V enters into the Stand-by mode by default.
7.3 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 might have its root cause in a locked-
up 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 enables the TxD time-out
feature and the TLE9251V disables the transmitter (see Figure 13). The receiver is still active and the data on
the bus continues to be monitored by the RxD output pin.
Figure 13 TxD time-out function
Figure 13 illustrates how the transmitter is deactivated and 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 TLE9251V requires a signal change on the TxD input pin from logical “low” to
logical “high”.
TxD
t
t
CANH
CANL
RxD
t
TxD time-out TxD time–out released
t > t
TxD
Data Sheet 17 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Fail safe functions
7.4 Overtemperature protection
The TLE9251V has an integrated overtemperature detection to protect the TLE9251V against thermal
overstress of the transmitter. The overtemperature protection is only active in Normal-operating mode. In
case of an overtemperature condition, the temperature sensor will disable the transmitter while the
transceiver remains in Normal-operating mode. After the device has cooled down the transmitter is activated
again (see Figure 14). A hysteresis is implemented within the temperature sensor.
Figure 14 Overtemperature protection
7.5 Delay time for mode change
The HS CAN transceiver TLE9251V changes the mode of operation within the time window tMode. During the
mode change from Stand-by mode to non-low power mode the RxD output pin is permanently set to logical
“high” and does not reflect the status on the CANH and CANL input pins.
After the mode change is completed, the transceiver TLE9251V releases the RxD output pin.
TxD
t
t
CANH
CANL
RxD
t
TJ
t
TJSD (shut down temperature)
switch-on transmitter
˂T
cool down
Data Sheet 18 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
General product characteristics
8 General product characteristics
8.1 Absolute maximum ratings
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. 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 continuos repetitive operation.
Table 3 Absolute maximum ratings voltages, currents and temperatures1)
All voltages with respect to ground; positive current flowing into pin;
(unless otherwise specified)
1) Not subject to production test, specified by design
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Voltages
Transmitter supply voltage VCC -0.3 – 6.0 V – P_8.1.1
Digital supply voltage VIO -0.3 – 6.0 V – P_8.1.2
CANH and CANL DC voltage
versus GND
VCANH -40 – 40 V – P_8.1.3
Differential voltage between
CANH and CANL
VCAN_Diff -40 – 40 V – P_8.1.4
Voltages at the digital I/O pins:
STB, RxD, TxD
VMAX_IO1 -0.3 – 6.0 V – P_8.1.5
Voltages at the digital I/O pins:
STB, RxD, TxD
VMAX_IO2 -0.3 – VIO +0.3 V – P_8.1.6
Currents
RxD output current IRxD -5 – 5 mA – P_8.1.7
Temperatures
Junction temperature Tj-40 – 150 °C – P_8.1.8
Storage temperature TS-55 – 150 °C – P_8.1.9
ESD Resistivity
ESD immunity at CANH, CANL
versus GND
VESD_HBM_CAN -8 – 8 kV HBM
(100 pF via 1.5 kΩ)2)
2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001
P_8.1.11
ESD immunity at all other pins VESD_HBM_ALL -2 – 2 kV HBM
(100 pF via 1.5 kΩ)2)
P_8.1.12
ESD immunity all pins VESD_CDM -750 – 750 V CDM3)
3) ESD susceptibility, Charge Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1
P_8.1.13
Data Sheet 19 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
General product characteristics
8.2 Functional range
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.
8.3 Thermal resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more
information, please visit www.jedec.org.
Table 4 Functional range
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Supply Voltages
Transmitter supply voltage VCC 4.5 – 5.5 V – P_8.2.1
Digital supply voltage VIO 3.0 – 5.5 V – P_8.2.2
Thermal Parameters
Junction temperature Tj-40 – 150 °C 1)
1) Not subject to production test, specified by design.
P_8.2.3
Table 5 Thermal resistance1)
1) Not subject to production test, specified by design
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Thermal Resistances
Junction to Ambient
PG-TSON-8
RthJA_TSON8 –65
–K/W
2)
2) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board. The product
(TLE9251V) 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)
P_8.3.1
Junction to Ambient
PG-DSO-8
RthJA_DSO8 – 120 – K/W 2) P_8.3.2
Thermal Shutdown (junction temperature)
Thermal shutdown temperature,
rising
TJSD 170 180 190 °C temperature
falling: Min. 150°C
P_8.3.3
Thermal shutdown hysteresis ∆T51020K P_8.3.4
Data Sheet 20 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
9 Electrical characteristics
9.1 Functional device characteristics
Table 6 Electrical characteristics
4.5 V < VCC <5.5V; 3.0V<VIO <5.5V; RL=60Ω; -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.
Current Consumption
Current consumption at VCC
Normal-operating,
“recessive” state
ICC_R –24mAVTxD = VIO, VSTB =0V; P_9.1.1
Current consumption at VCC
Normal-operating mode,
“dominant” state
ICC_D – 3848mAVTxD = VSTB =0V; P_9.1.2
Current consumption at VIO
Normal-operating mode
IIO ––1.5mAVSTB =0V;
VDiff = 0V; VTxD = VIO;
P_9.1.3
Current consumption at VCC
Stand-by mode
ICC(STB) ––5µAVTxD =VSTB =V
IO;P_9.1.4
Current consumption at VIO
Stand-by mode
IIO(STB) –715µAVTxD =VSTB = VIO,
0V<VCC <5.5V;
P_9.1.5
Current consumption at VIO
Stand-by mode
IIO(STB)_85 ––12µAVTxD =VSTB = VIO 1)
TJ< 85°C;
0V<VCC <5.5V;
P_9.1.6
Current consumption at VCC
Forced-receive-only mode
ICC(FROM) ––1mAVTxD =VSTB = 0V;
0V<VCC <VCC(UV,F);
VDiff = 0V;
P_9.1.10
Current consumption at VIO
Forced-receive-only mode
IIO(FROM) –0.81.5mAVTxD =VSTB = 0 V;
0V<VCC <VCC(UV,F); VDiff
= 0V;
P_9.1.11
Supply resets
VCC undervoltage monitor
rising edge
VCC(UV,R) 3.8 4.35 4.5 V – P_9.1.12
VCC undervoltage monitor
falling edge
VCC(UV,F) 3.8 4.25 4.5 V – P_9.1.13
VCC undervoltage monitor
hysteresis
VCC(UV,H) – 100 – mV 1) P_9.1.14
VIO undervoltage monitor
rising edge
VIO(UV,R) 2.0 2.55 3.0 V – P_9.1.15
VIO undervoltage monitor
falling edge
VIO(UV,F) 2.0 2.4 3.0 V – P_9.1.16
Data Sheet 21 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
VIO undervoltage monitor
hysteresis
VIO(UV,H) – 150 – mV 1) P_9.1.17
VCC undervoltage delay time tDelay(UV)_F
tDelay(UV)_R
––30
100
µs 1) (see Figure 9); P_9.1.18
VIO delay time power-up tPON – – 280 µs 1) (see Figure 6); P_9.1.19
VIO delay time power-down tPOFF – – 100 µs 1) (see Figure 6); P_9.1.20
Receiver output RxD
“High” level output current IRxD,H –-4-1 mAVRxD =VIO -0,4V;
VDiff < 0,5V
P_9.1.21
“Low” level output current IRxD,L 1 4 – mA VRxD =0.4V; VDiff > 0,9V P_9.1.22
Transmission input TxD
“High” level input voltage
threshold
VTxD,H –0.5
× VIO
0.7
× VIO
V“recessive” state; P_9.1.26
“Low” level input voltage
threshold
VTxD,L 0.3
× VIO
0.4
× VIO
–V“dominant” state; P_9.1.27
Input hysteresis VHYS(TxD) – 200 – mV 1) P_9.1.28
“High” level input current ITxD,H -2 – 2 µA VTxD =VIO; P_9.1.29
“Low” level input current ITxD,L -200 – -20 µA VTxD =0V; P_9.1.30
Input capacitance CTxD ––10pF
1) P_9.1.31
TxD permanent “dominant”
time-out, optional
tTxD 1–4msNormal-operating
mode;
P_9.1.32
stand-by input STB
“High” level input voltage
threshold
VSTB,H –0.5
× VIO
0.7
× VIO
VStand-by mode; P_9.1.36
“Low” level input voltage
threshold
VSTB,L 0.3
× VIO
0.4
× VIO
– V Normal-operating
mode;
P_9.1.37
“High” level input current ISTB,H -2 – 2 µA VSTB =VIO; P_9.1.38
“Low” level input current ISTB,L -200 – -20 µA VSTB =0V; P_9.1.39
Input hysteresis VHYS(STB) – 200 – mV 1) P_9.1.42
Input capacitance C(STB) ––10pF
1) P_9.1.43
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC <5.5V; 3.0V<VIO <5.5V; RL=60Ω; -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.
Data Sheet 22 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
Bus receiver
Differential range “dominant”
Normal-operating mode
VDiff_D_Range 0.9 – 8.0 V -12V ≤VCMR ≤12 V; P_9.1.46
Differential range “recessive”
Normal-operating mode
VDiff_R_Range -3.0 – 0.5 V -12V ≤VCMR ≤ 12 V; P_9.1.48
Differential receiver hysteresis
Normal-operating mode
VDiff,hys 30 mV 1) P_9.1.49
Differential range threshold
“dominant”
Stand-by mode
VDiff_D_STB_R
ange
1.15 – 8.0 V -12V ≤VCMR ≤12 V; P_9.1.50
Differential range “recessive”
Stand-by mode
VDiff_R_STB_R
ange
-3.0 – 0.4 V -12V ≤VCMR ≤12 V; P_9.1.51
Common mode range CMR -12 – 12 V – P_9.1.52
Single ended internal
resistance
RCAN_H,
RCAN_L
6–50kΩ“recessive” state,
-2V ≤ VCANH ≤ 7V;
-2V ≤ VCANL ≤ 7V;
P_9.1.53
Differential internal resistance RDiff 12 – 100 kΩ“recessive” state,
-2V ≤ VCANH ≤ 7V;
-2V ≤ VCANL ≤ 7V;
P_9.1.54
Input resistance deviation
between CANH and CANL
∆Ri-3 – 3 % 1) “recessive” state,
VCANH = VCANL = 5V;
P_9.1.55
Input capacitance CANH,
CANL versus GND
CIn – 2040pF
1) P_9.1.56
Differential input capacitance CInDiff – 1020pF
1) P_9.1.57
Bus transmitter
CANL, CANH “recessive”
output voltage
Normal-operating mode
VCANL,H 2.0 2.5 3.0 V VTxD =VIO
no load;
P_9.1.58
CANH, CANL “recessive”
output voltage difference
Normal-operating mode
VDiff_R_NM =
VCANH -
VCANL
-500 – 50 mV VTxD = VIO,
no load;
P_9.1.59
CANL “dominant”
output voltage
Normal-operating mode
VCANL 0.5 – 2.25 V VTxD =0V;
50 Ω<RL<65Ω,
4.75 V < VCC <5.25V;
P_9.1.60
CANH “dominant”
output voltage
Normal-operating mode
VCANH 2.75 – 4.5 V VTxD =0V;
50 Ω<RL<65Ω,
4.75 V < VCC <5.25V;
P_9.1.61
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC <5.5V; 3.0V<VIO <5.5V; RL=60Ω; -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.
Data Sheet 23 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
Differential voltage
“dominant”
Normal-operating mode
VDiff = VCANH - VCANL
VDiff_D_NM 1.5 2.0 3.0 V VTxD =0V,
50 Ω<RL<65Ω,
4.75 V < VCC <5.25V;
P_9.1.62
Differential voltage
“dominant” extended bus
load
Normal-operating mode
VDiff_EXT_BL 1.4 2.0 3.3 V VTxD =0V,
45 Ω<RL<70Ω,
4.75 V < VCC <5.25V;
P_9.1.63
Differential voltage
“dominant” high extended
bus load
Normal-operating mode
VDiff_HEXT_BL 1.5 – 5.0 V VTxD =0V,
RL= 2240Ω,
4.75 V < VCC <5.25V,
static behavior;1)
P_9.1.64
CANH, CANL “recessive”
output voltage difference
Stand-by mode
VDiff_STB -0.2 – 0.2 V no load; P_9.1.65
CANL, CANH “recessive”
output voltage
Stand-by mode
VCANL,H -0.1 – 0.1 V no load; P_9.1.66
Driver symmetry
(VSYM =VCANH +VCANL)
VSYM 0.9 ×
VCC
1.0 ×
VCC
1.1 ×
VCC
V1) 2) C1 = 4.7nF P_9.1.67
CANL short circuit current ICANLsc 40 75 115 mA VCANLshort =18V,
t<t
TxD,
VTxD =0V;
P_9.1.68
CANH short circuit current ICANHsc -115 -75 -40 mA VCANHshort = -3 V,
t<t
TxD,
VTxD =0V;
P_9.1.70
Leakage current, CANH ICANH,lk -5 – 5 µA VCC =VIO =0V,
0V<VCANH ≤5V,
VCANH =VCANL;
P_9.1.71
Leakage current, CANL ICANL,lk -5 – 5 µA VCC =VIO =0V,
0V<VCANL ≤ 5V,
VCANH =VCANL;
P_9.1.72
Dynamic CAN-transceiver characteristics
Propagation delay
TxD-to-RxD
tLoop 80 – 255 ns C1=0pF,
C2= 100 pF,
CRxD =15pF;
(see Figure 16)
P_9.1.73
Propagation delay
increased load
TxD-to-RxD
tLoop_150 80 – 330 ns C1=0pF,
C2= 100 pF,
CRxD =15pF,
RL= 150 Ω1)
P_9.1.74
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC <5.5V; 3.0V<VIO <5.5V; RL=60Ω; -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.
Data Sheet 24 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
Delay Times
Delay time for mode change tMode – – 20 µs 1) P_9.1.79
CAN activity filter time tFilter 0.5 – 1.8 µs 1) (see Figure 11); P_9.1.81
Bus wake-up time-out tWake 0.8 – 10 ms 1) (see Figure 11); P_9.1.82
Bus wake-up delay time tWU ––5µs (see Figure 11); P_9.1.83
CAN FD characteristics
Received recessive bit width
at 2 MBit/s
tBit(RxD)_2M 400 500 550 ns C2= 100 pF,
CRxD =15pF,
tBit = 500 ns,
(see Figure 17);
P_9.1.84
Received recessive bit width
at 5 MBit/s
tBit(RxD)_5M 120 200 220 ns C2= 100 pF,
CRxD =15pF,
tBit = 200 ns,
(see Figure 17);
P_9.1.85
Transmitted recessive bit
width at 2 MBit/s
tBit(Bus)_2M 435 500 530 ns C2= 100 pF,
CRxD =15pF,
tBit = 500 ns,
(see Figure 17);
P_9.1.86
Transmitted recessive bit
width at 5 MBit/s
tBit(Bus)_5M 155 200 210 ns C2= 100 pF,
CRxD =15pF,
tBit = 200 ns,
(see Figure 17);
P_9.1.87
Receiver timing symmetry at
2MBit/s
∆tRec_2M = tBit(RxD)_2M - tBit(Bus)_2M
∆tRec_2M -65 – 40 ns C2= 100 pF,
CRxD =15pF,
tBit = 500 ns,
(see Figure 17);
P_9.1.88
Receiver timing symmetry at
5MBit/s
∆tRec_5M = tBit(RxD)_5M - tBit(Bus)_5M
∆tRec_5M -45 – 15 ns C2= 100 pF,
CRxD =15pF,
tBit = 200 ns,
(see Figure 17);
P_9.1.89
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.
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC <5.5V; 3.0V<VIO <5.5V; RL=60Ω; -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.
Data Sheet 25 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Electrical characteristics
9.2 Diagrams
Figure 15 Test circuit for dynamic characteristics
Figure 16 Timing diagrams for dynamic characteristics
Figure 17 Recessive bit time for five “dominant” bits followed by one “recessive” bit
TLE9251V
3
GND
2
4
5
1
8
100 nF
6CANL
7CANH
RL/2
VCC
VIO
TxD
STB
RxD
C2
CRxD
100 nF
RL/2
C1
VDiff
TxD
t
t
RxD
tLoop(H,L) tLoop(L,H)
0.3 x VIO
0.3 x VIO
0.7 x VIO
0.7 x VIO
t
VDiff
TxD
t
t
RxD
0.9 V
5 x tBit
0.5 V
tLoop(H,L)
t
tBit
tBit(Bus)
tLoop(L,H) tBit(RxD)
0.3 x VIO
0.7 x VIO
0.7 x VIO
0.3 x VIO
0.3 x VIO
VDiff = VCANH - VCANL
Data Sheet 26 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
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.
10.2 Application example
Figure 18 Application circuit
Table 7 ESD robustness according to IEC61000-4-2
Performed Test Result Unit Remarks
Electrostatic discharge voltage at pin CANH and
CANL versus GND
≥ +11 kV 1)Positive pulse
1) Not subject to production test. ESD susceptibility “ESD GUN” according to GIFT / ICT paper: “EMC Evaluation of CAN
Transceivers, version IEC TS62228”, section 4.3. (DIN EN61000-4-2)
Tested by external test facility (IBEE Zwickau, EMC test report Nr. 01-07-2017 and Nr. 06-08-17)
Electrostatic discharge voltage at pin CANH and
CANL versus GND
≤ -11 kV 1)Negative pulse
example ECU design
CANH CANL
VBAT
TLE9251V
VCC
CANH
CANL
GND
STB
TxD
RxD
7
6
1
4
8
2
3
Microcontroller
e.g. XC22xx
VCC
GND
Out
Out
In
TLE4476D
GND
IQ1
100 nF
100 nF
22 μF
EN Q2
VIO
22 μF
100 nF
TLE9251V
VCC
CANH
CANL
GND
STB
TxD
RxD
7
6
1
4
8
2
3
Microcontroller
e.g. XC22xx
VCC
GND
Out
Out
In
TLE4476D
GND
IQ1
100 nF 100 nF
22 μF
EN Q2
VIO
22 μF
100 nF
5
5
CANH CANL
120
Ohm
120
Ohm
Data Sheet 27 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Application information
10.3 Voltage adaption to the microcontroller supply
To adapt the digital input and output levels of the TLE9251V to the I/O levels of the microcontroller, connect
the power supply pin VIO to the microcontroller voltage supply (see Figure 18).
Note: In case no dedicated digital supply voltage VIO is required in the application, connect the digital
supply voltage VIO to the transmitter supply VCC.
10.4 Further application information
• Existing application note of TLE9251V: www.infineon.com/TLE9251V-AN
• For further information you may visit: http://www.infineon.com/automotive-transceiver
Data Sheet 28 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Package outline
11 Package outline
Figure 19 PG-TSON-8 (Plastic Thin Small Outline Nonleaded)
Figure 20 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.Dimensions in mm
Data Sheet 29 Rev. 1.1
2018-05-23
High Speed CAN FD Transceiver
TLE9251V
Revision history
12 Revision history
Revision Date Changes
1.1 2018-05-23 Data Sheet updated:
•ICC_D max. lowered from 60mA to 48mA (see P_9.1.2)
• Extended temperature condition TJ < 150°C (see P_9.1.5)
• Introduced new Stand-by Mode current consumption for VIO t < 85°C: max.
12µA (see P_9.1.6)
•tDelay(UV) divided in tDelay(UV)_F (max. 30µs) and tDelay(UV)_R (max. 100µs)(see
P_9.1.18 and Figure 9)
• Updated Figure 16. Removed unspecified parameters td(L),T, td(L),R, td(H),T,
td(H),R.
• Editorial Changes
1.0 2017-09-14 Data Sheet created
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2018-05-23
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2018 Infineon Technologies AG.
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