Datasheet Rev. 1.11
www.infineon.com/automotive-transceivers 1 2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Features
• Fully compatible with ISO 11898-2 / -5
• Wide common mode range for electromagnetic immunity (EMI)
• Very low electromagnetic emission (EME)
• Excellent ESD immunity
• Extended supply range on VCC and VIO
•VIO input for voltage adaption to the microcontroller supply
• CAN short-circuit proof to ground, battery and VCC
• TxD time-out function
• Low CAN bus leakage current in power-down state
• Overtemperature protection
• Protected against automotive transients
• CAN data transmission rate up to 1 Mbps
• Stand-by mode with remote wake-up function
• Wake-up detection by signal change on the RxD output
•Power Supply VCC can be turned off in stand-by mode
• Green Product (RoHS compliant)
Potential applications
•Gateway modules
• Body control modules (BCMs)
• Electric power steering
• Battery management systems
• Cluster and lighting control modules
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100.
Description
The TLE6251D is a transceiver designed for CAN networks in automotive and industrial applications. As an
interface between the physical bus layer and the CAN protocol controller, the TLE6251D drives the signals to
the bus and protects the microcontroller against interferences generated within the network. Based on the
Datasheet 2 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
high symmetry of the CANH and CANL signals, the TLE6251D provides a very low level of electromagnetic
emission (EME) within a wide frequency range. The TLE6251D is integrated into a RoHS compliant PG-DSO-8
package and fulfills or exceeds the requirements of the ISO11898-2 / -5.
The TLE6251D allows very low quiescent currents in stand-by mode while the device is still able to wake-up by
a bus signal on the CAN bus. Based on the very low leakage currents on the CAN bus interface the TLE6251D
provides an excellent passive behavior in power-down state. These and other features make the TLE6251D
especially suitable for mixed supply CAN networks.
Based on the Infineon Smart Power Technology SPT, the TLE6251D provides excellent ESD immunity together
with a very high electromagnetic immunity (EMI). The TLE6251D and the Infineon SPT technology are AEC
qualified and tailored to withstand the harsh conditions of the Automotive Environment.
Two different operation modes, additional fail-safe features like a TxD time-out, and the optimized output
slew rates on the CANH and CANL signals make the TLE6251D the ideal choice for large CAN networks with high
data transmission rates.
Type Package Marking
TLE6251D PG-DSO-8 6251D
Datasheet 3 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 High speed CAN physical layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Normal-operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Power-down state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Remote wake-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7 Voltage adaption to the microcontroller supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Fail safe functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Unconnected logical pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 TxD time-out function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Undervoltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5 Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.6 Delay time for mode change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1 Functional device characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 ESD immunity according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2 Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8 Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table of contents
Datasheet 4 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Block diagram
1 Block diagram
Figure 1 Block diagram
Transmitter
Driver
Temp-
Protection Mode
Control
7
CANH
6
CANL
2
GND
TxD
3VCC
STB
VIO
RxD
Timeout
Transmitter
Receive Unit
=
VCC/2
*
*Wake-Logic
& Filter
Mux
Normal Mode Receiver
Low Power Receiver
5
1
8
4
VIO
Datasheet 5 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Pin configuration
2 Pin configuration
2.1 Pin assignment
Figure 2 Pin configuration
2.2 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 Transceiver 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 input
Supply voltage input to adapt the logical input and output voltage levels of the
transceiver to the microcontroller supply.
Supply for the low-power receiver.
100 nF decoupling capacitor to GND required.
6CANLCAN bus low level I/O
“Low” in dominant state.
TxD 1
2
3
45
6
7
8
RxD
STB
GND
VCC
CANH
CANL
VIO
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TLE6251D
High Speed CAN-Transceiver with bus wake-up
Pin configuration
7CANHCAN bus high level I/O
“High” in dominant state.
8STBStand-by input
Internal pull-up to VIO, “low” for normal-operating mode.
Table 1 Pin definitions and functions (cont’d)
Pin No. Symbol Function
Datasheet 7 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Functional description
3 Functional description
CAN is a serial bus system that connects microcontrollers, sensors and actuators for real-time control
applications. The use of the Controller Area Network (abbreviated CAN) within road vehicles is described by
the international standard ISO 11898. According to the 7-layer OSI reference model, the physical layer of a CAN
bus system specifies the data transmission from one CAN node to all other available CAN nodes within the
network. The physical layer specification of a CAN bus system includes all electrical and mechanical
specifications of a CAN network. The CAN transceiver is part of the physical layer specification. Several
different physical layer standards of CAN networks have been developed in recent years. The TLE6251D is a
High Speed CAN transceiver with a dedicated bus wake-up function and defined by the international standard
ISO 11898-2.
3.1 High speed CAN physical layer
Figure 3 High speed CAN bus signals and logical signals
VCC
CAN_H
CAN_L
TxD
VIO = Digital supply
VCC = High Speed CAN
power supply
TxD = Input from the
microcontroller
RxD = Output to the
microcontroller
CANH = Voltage on the CANH
input/output
CANL = Voltage on the CANL
input/output
VDIFF = Differential voltage
between CANH and CANL
VDIFF = VCANH – VCANL
RxD
VDIFF
“dominant“
VIO
VIO
t
t
t
t
VDIFF = ISO Level “dominant“
VDIFF = ISO Level “recessive“
“recessive“
Datasheet 8 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Functional description
The TLE6251D is a High Speed CAN transceiver, operating as an interface between the CAN controller and the
physical bus medium. A HS CAN network is a two-wire, differential network, which allows data transmission
rates up to 1 Mbps. The characteristics for a HS CAN network are the two signal states on the CAN bus:
dominant and recessive (see Figure 3).
The CANH and CANL pins are the interface to the CAN bus and both pins operate as an input and output. The
RxD and TxD pins are the interface to the microcontroller. The TxD pin is the serial data input from the CAN
controller, the RxD pin is the serial data output to the CAN controller. As shown in Figure 1, the HS CAN
transceiver TLE6251D includes a receiver and a transmitter unit, allowing the transceiver to send data to the
bus medium and monitor the data from the bus medium at the same time. The HS CAN transceiver TLE6251D
converts the serial data stream which is available on the transmit data input TxD, into a differential output
signal on the CAN bus, provided by the pins CANH and CANL. The receiver stage of the TLE6251D monitors the
data on the CAN bus and converts them to a serial, single-ended signal on the RxD output pin. A logical “low”
signal on the TxD pin creates a dominant signal on the CAN bus, followed by a logical “low” signal on the RxD
pin (see Figure 3). The feature, broadcasting data to the CAN bus and listening to the data traffic on the
CAN bus simultaneously is essential to support the bit-to-bit arbitration within CAN networks.
The voltage levels for HS CAN transceivers are defined by the ISO 11898-2 and the ISO 11898-5 standards.
Whether a data bit is dominant or recessive depends on the voltage difference between the CANH and CANL
pins: VDIFF =VCANH -VCANL.
In comparison with other differential network protocols, the amplitude of the differential signal on a CAN
network can only be higher than or equal to 0 V. To transmit a dominant signal to the CAN bus, the amplitude
of the differential signal VDIFF is higher than or equal to 1.5 V. To receive a recessive signal from the CAN bus,
the amplitude of the differential VDIFF is lower than or equal to 0.5 V.
“Partially-supplied” High Speed CAN networks are networks in which the CAN bus nodes of one common
network have different power supply conditions. Some nodes are connected to the common power supply,
while other nodes are disconnected from the power supply and in power-down state. Regardless of whether
the CAN bus subscriber is supplied or not, each subscriber connected to the common bus media must not
interfere with the communication. The TLE6251D is designed to support “partially-supplied” networks. In the
power-down state, the receiver input resistors are switched off and the transceiver input has a high resistance.
For permanently supplied ECUs, the HS CAN transceiver TLE6251D provides a stand-by mode. In stand-by
mode, the power consumption of the TLE6251D is optimized to a minimum, while the device is still able to
recognize wake-up patterns on the CAN bus and signal a wake-up event to the external microcontroller.
The voltage level on the digital input TxD and the digital output RxD is determined by the power supply level
at the VIO pin. Depending on the voltage level at the VIO pin, the signal levels on the logic pins (STB, TxD and
RxD) are compatible with microcontrollers having a 5 V or 3.3 V I/O supply. Usually, the VIO power supply of the
transceiver is connected to the same power supply as the I/O power supply of the microcontroller.
3.2 Modes of operation
Two different modes of operation are available on the TLE6251D. Each mode has specific characteristics in
terms of quiescent current or data transmission. The digital input pin STB is used for the mode selection.
Figure 4 illustrates the different mode changes depending on the status of the STB pin. After supplying VCC and
VIO to the HS CAN transceiver, the TLE6251D starts in stand-by mode. The internal pull-up resistor at the STB
pin sets the TLE6251D to stand-by mode by default. If the microcontroller is up and running, the TLE6251D can
switch to any operating mode within the time period for mode change tMODE.
Datasheet 9 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Functional description
Figure 4 Mode of operation
The TLE6251D has 2 major modes of operation:
•Stand-by mode
• Normal-operating mode
Table 2 Modes of operation
Mode STB Bus Bias Comment
Normal-
operating mode
“low” VCC/2 The transmitter is active.
The normal mode receiver is active.
The low-power receiver is disabled.
Stand-by mode
VCC on
VIO on
“high” GND The transmitter is disabled.
The normal mode receiver is disabled.
The low-power receiver is active.
Stand-by mode
VCC off
VIO on
“high” GND The transmitter is disabled.
The normal mode receiver is disabled.
The low-power receiver is active.
Power-down
state
VCC off
VIO off
Don’t care Floating The transmitter is disabled.
The normal mode receiver is disabled.
The low-power receiver is disabled.
undervoltage
detection on VCC and
VIO
power-down
V
CC
< V
CC(UV)
start–up
supply V
CC
and
V
IO
V
IO
< V
IO(UV)
STB = 0
normal-operating
mode
STB = 1
stand-by mode
STB = 0 STB = 1
Datasheet 10 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Functional description
3.3 Normal-operating mode
In the normal-operating mode, the HS CAN transceiver TLE6251D sends the serial data stream on the TxD pin
to the CAN bus. The data on the CAN bus is displayed at the RxD pin simultaneously. In normal-operating
mode, all functions of the TLE6251D are active:
• The transmitter is active and drives data from the TxD to the CAN bus.
• The receiver is active and provides the data from the CAN bus to the RxD pin.
• The low-power receiver is disabled.
• The bus basing is set to VCC/2.
• The undervoltage monitoring on the power supply VCC and on the power supply VIO is active.
• The overtemperature protection is active.
To enter the normal-operating mode, set the STB pin to logical “low” (see Table 2 or Figure 4). The STB pin
has an internal pull-up resistor to the power-supply VIO.
3.4 Stand-by mode
Stand-by mode is an idle mode of the TLE6251D with optimized power consumption. In stand-by mode, the
TLE6251D can not send or receive any data. The normal mode receiver is switched off and only the low-power
receiver is active. An additional filter, implemented inside the low-power receiver ensures that only dominant
and recessive signals on the CAN bus, which are longer than the bus wake-up time tWU are indicated at the RxD
output pin.
•The transmitter is disabled, and permanently recessive.
• The input TxD is disabled.
• The normal mode receiver is disabled.
• The low-power receiver is active.
• The RxD output is “high”, in case no wake-up signal on the CAN bus is detected (see Figure 5).
• The RxD output toggles according to the wake-up signal on the CAN bus (see Figure 5).
• The undervoltage monitoring on the power supply VCC is disabled.
• The undervoltage monitoring on the power supply VIO is active.
• The bus biasing is set to GND.
• The overtemperature protection is not active.
To enter the stand-by mode, set the pin STB to logical “high” (see Table 2 or Figure 4). The STB pin has an
internal pull-up resistor to the power-supply VIO. In case the stand-by mode is not be used in the final
application, the STB pin needs to get connected to GND.
3.5 Power-down state
The power-down state means that the TLE6251D is not supplied. In the power-down state, the differential
input resistors of the receiver are switched off. The CANH and CANL bus interface of the TLE6251D acts as a
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 CAN network.
Datasheet 11 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Functional description
3.6 Remote wake-up
The TLE6251D has a remote wake-up feature, also called bus wake-up feature. In stand-by mode, the low-
power receiver monitors the activity on the CAN bus and in case it detects a wake-up signal, the TLE6251D
indicates the wake-up signal on the RxD output pin.
CAN bus signals, dominant or recessive, with a pulse width above the bus wake-up time t > tWU are indicated
on the RxD output pin (see Figure 5).
The wake-up logic is supplied by the power supply VIO (see Figure 1). In case the TLE6251D is in stand-by mode,
the power supply VCC can be turned off, while the TLE6251D is still able to detect the wake-up pattern on the
CAN bus.
Figure 5 Wake-up pattern
3.7 Voltage adaption to the microcontroller supply
The HS CAN transceiver TLE6251D has two different power supplies, VCC and VIO. The power supply VCC supplies
the transmitter and the normal mode receiver, the power supply VIO supplies the digital input and output
buffers, the low-power receiver and the wake-up logic. To adjust the digital input and output levels of the
TLE6251D to the I/O levels of the external microcontroller, the power supply VIO should be connected to the
microcontroller pad supply (see Figure 11).
Supplying the low-power receiver by the VIO pin allows to switch off the VCC supply in stand-by mode and leads
to an additional reduction of the quiescent current in stand-by mode.
RxD
t
t
CANH
CANL
STB
t
t
VDIFF
t = tWU t = tWU
VIO
t = tWU
VDIFF = CANH - CANL
t = tWU
Datasheet 12 Rev. 1.11
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TLE6251D
High Speed CAN-Transceiver with bus wake-up
Fail safe functions
4 Fail safe functions
4.1 Short-circuit protection
The CANH and CANL bus outputs are short-circuit proof, either against GND or a positive supply voltage. A
current limiting circuit protects the transceiver against damages. If the device heats up due to a continuous
short on the CANH or CANL, the internal overtemperature protection switches off the bus transmitter.
4.2 Unconnected logical pins
All logical input pins have an internal pull-up resistor to VIO. In case the VIO supply is activated and the logical
pins are open or floating, the TLE6251D enters the stand-by mode by default. In stand-by mode, the
transmitter of the TLE6251D is disabled, the bus bias is turned off and the input resistors of CANH and CANL
are connected to GND. The HS CAN transceiver TLE6251D will not influence the data on the CAN bus.
4.3 TxD time-out function
The TxD time-out feature protects the CAN bus against permanent blocking in case the logical signal on the
TxD pin is continuously “low”. A continuous “low” signal on the TxD pin can have its root cause in a locked-up
microcontroller or in a short on the printed circuit board, for example. In normal-operating mode, a logical
“low” signal on the TxD pin for the time t>tTxD enables the TxD time-out feature and the TLE6251D disables
the transmitter (see Figure 6). The receive unit is still active and the data on the bus continue to be monitored
by the RxD output pin.
Figure 6 TxD time-out function
Figure 6 shows how the transmitter is deactivated and re-activated again. A permanent “low” signal on the
TxD input pin activates the TxD time-out function and deactivates the transmitter. To release the transmitter
after a TxD time-out event, the TLE6251D requires a signal change on the TxD input pin from logical “low” to
logical “high”.
TxD
t
t
CANH
CANL
RxD
t
TxD time-out TxD time-out released
t > tTxD
Datasheet 13 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Fail safe functions
4.4 Undervoltage detection
The HS CAN Transceiver TLE6251D is provided with undervoltage detection on the power supply VCC and the
power supply VIO. Both undervoltage detection monitors are active in normal-operating mode. In stand-by
mode only the VIO undervoltage monitoring is active, the VCC undervoltage monitoring is disabled.
In case the power supply VCC or VIO drops below a voltage level where the transceiver TLE6251D cannot
securely send data to the bus or receive data from the bus, the undervoltage detection disables the data
communication (see Figure 7).
The transmitter and the receiver are disabled, but the bus biasing remains connected to VCC/2. With a falling
VCC supply, the recessive level of the CAN bus signal decreases respectively.
Figure 7 Undervoltage detection on VCC or VIO
Datasheet 14 Rev. 1.11
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TLE6251D
High Speed CAN-Transceiver with bus wake-up
Fail safe functions
4.5 Overtemperature protection
The TLE6251D has an integrated overtemperature detection circuit to protect the TLE6251D against thermal
overstress of the transmitter. The overtemperature protection is active in normal-operating mode and
disabled in stand-by mode. In case of an overtemperature condition, the temperature sensor will disable the
transmitter (see Figure 1) while the transceiver remains in normal-operating mode.
After the device cools down the transmitter is activated again (see Figure 8). A hysteresis is implemented
within the temperature sensor.
Figure 8 Overtemperature protection
4.6 Delay time for mode change
During the mode change from stand-by mode to normal-operating mode or vice versa, the internal receive
unit switches from the low-power receiver to the normal mode receiver and vice versa. In order to avoid any
bit toggling on the RxD output pin, the RxD output is set to logical “high” during the mode change for the time
tMode and is not reflecting the signal on the CAN bus.
TxD
t
t
CANH
CANL
RxD
t
Overtemperature event
TJ
t
TJSD
(shut-down temperature) Cool Down
switch-on transmitter
ΔT
Datasheet 15 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
General product characteristics
5 General product characteristics
5.1 Absolute maximum ratings
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.
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
Supply voltage VCC -0.3 – 6.0 V – P_6.1.1
Logic supply voltage VIO -0.3 – 6.0 V – P_6.1.2
CANH DC voltage versus GND VCANH -40 – 40 V – P_6.1.3
CANL DC voltage versus GND VCANL -40 – 40 V – P_6.1.4
Differential voltage between CANH and
CANL
VCAN diff -40 – 40 V – P_6.1.5
Logic voltages at logic input pins STB,
TxD
VMax_in -0.3 – 6.0 V – P_6.1.6
Logic voltages at logic output pin RxD VMax_Out -0.3 – VIO V– P_6.1.7
Temperatures
Junction temperature Tj-40 – 150 °C – P_6.1.8
Storage temperature TS-55 – 150 °C – P_6.1.9
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_6.1.10
ESD immunity at all other pins VESD_HBM_All -2 – 2 kV HBM
(100 pF via 1.5 kΩ2)
P_6.1.11
ESD immunity to GND VESD_CDM -750 – 750 V CDM3)
3) ESD susceptibility, Charge Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1.
P_6.1.12
Datasheet 16 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
General product characteristics
5.2 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.
5.3 Thermal resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more
information, please visit www.jedec.org.
Table 4 Operating range
Parameter Symbol Values Unit Note or
Test Condition
Number
Min. Typ. Max.
Supply voltages
Transceiver supply voltage VCC 4.5 – 5.5 V – P_6.2.1
Digital supply voltage VIO 3.0 – 5.5 V – P_6.2.2
Thermal parameters
Junction temperature Tj-40 – 150 °C 1)
1) Not subject to production test, specified by design.
P_6.2.3
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 RthJA – 130 – K/W 2)
2) The RthJA value specified is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The product
(TLE6251D) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35 µm Cu).
P_6.3.1
Thermal shutdown (junction temperature)
Thermal shutdown temperature TJSD 150 175 200 °C – P_6.3.2
Thermal shutdown hyst. ∆T–10– K– P_6.3.3
Datasheet 17 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Electrical characteristics
6 Electrical characteristics
6.1 Functional device characteristics
Table 6 Electrical characteristics
4.5 V < VCC < 5.5 V; 3.0 V < VIO <5.5V; 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.
Current consumption
Current consumption at VCC
normal-operating mode
ICC – 2 6 mA Recessive state,
VTxD = VIO,
STB = “low”;
P_7.1.1
Current consumption at VCC
normal-operating mode
ICC – 3560mADominant state,
VTxD =0V.
STB = “low”;
P_7.1.2
Current consumption at VIO -
normal-operating mode
IVIO – – 1 mA STB = “low”; P_7.1.3
Current consumption at VCC
stand-by mode
IVCC(STB) ––5µAVTxD = VIO, VCC = 5 V; P_7.1.4
Current consumption at VIO
stand-by mode
IVIO(STB) ––25µAVIO =5V, VTxD = VIO;P_7.1.5
Current consumption at VIO
stand-by mode
IVIO(STB) – 1521µAVIO =5V, VTxD = VIO,
TJ=40°C;
P_7.1.6
Supply resets
VCC undervoltage monitor VCC(UV) 3.8 4.0 4.3 V Rising edge; P_7.1.7
VCC undervoltage monitor
hysteresis
VCC(UV,H) – 150 – mV 1) P_7.1.8
VIO undervoltage monitor VIO(UV) 1.2 2.0 3.0 V Rising edge; P_7.1.9
VIO undervoltage monitor
hysteresis
VCC(UV,H) – 200 – mV 1) P_7.1.10
VCC and VIO undervoltage delay
time
tDelay(UV) ––50µs
1)(see Figure 7); P_7.1.11
Receiver output: RxD
“High” level output current IRD,H – -4-2mAVRxD =VIO - 0,4 V,
VDIFF <0.5V;
P_7.1.13
“Low” level output current IRD,L 24–mAVRxD =0.4V,
VDIFF >0.9V;
P_7.1.14
Datasheet 18 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Electrical characteristics
Transmission input: TxD
“High” level input voltage
threshold
VTD,H –0.5×VIO 0.7 × VIO V Recessive state; P_7.1.15
“Low” level input voltage
threshold
VTD,L 0.3 × VIO 0.4 × VIO – V Dominant state; P_7.1.16
TxD pull-up resistance RTD 10 25 50 kΩ – P_7.1.18
TxD input hysteresis VHYS(TxD) – 800 – mV 1) P_7.1.19
TxD permanent dominant
disable time
tTxD 4.5 – 16 ms – P_7.1.20
Stand-by input: STB
“High” level input voltage
threshold
VSTB,H –0.5×VIO 0.7 × VIO V Stand-by mode; P_7.1.21
“Low” level input voltage
threshold
VSTB,L 0.3 × VIO 0.4 × VIO – V Normal-operating
mode;
P_7.1.22
STB pull-up resistance RSTB 10 25 50 kΩ – P_7.1.24
STB input hysteresis VHYS(STB) – 200 – mV 1) P_7.1.25
Bus receiver
Differential receiver threshold
dominant
VDIFF_D – 0.75 0.9 V Normal-operating
mode;
P_7.1.26
Differential receiver threshold
recessive
VDIFF_R 0.5 0.65 – V Normal-operating
mode;
P_7.1.27
Differential receiver threshold
dominant
VDIFF_D_STB – 0.8 1.15 V Stand-by mode; P_7.1.28
Differential receiver threshold
recessive
VDIFF_R_STB 0.4 0.7 – V Stand-by mode; P_7.1.29
Common mode range CMR -12 – 12 V VCC =5V; P_7.1.30
Differential receiver hysteresis Vdiff,hys – 100 – mV 1) Normal-operating
mode;
P_7.1.31
CANH, CANL input resistance Ri10 20 30 kΩ Recessive state; P_7.1.32
Differential input resistance Rdiff 20 40 60 kΩ Recessive state; P_7.1.33
Input resistance deviation
between CANH and CANL
∆Ri- 3 – 3 % 1) Recessive state; P_7.1.34
Input capacitance CANH, CANL
versus GND
CIn – 2040pF
1)VTXD =VIO; P_7.1.35
Differential input capacitance CInDiff – 1020pF
1)VTXD =VIO; P_7.1.36
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO <5.5V; 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.
Datasheet 19 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Electrical characteristics
Bus transmitter
CANL/CANH recessive output
voltage
VCANL/H 2.0 2.5 3.0 V No load,
VTxD =VIO,
Normal-operating
mode;
P_7.1.37
CANH, CANL recessive output
voltage difference
Vdiff -500 – 50 mV No load,
VTxD =VIO,
Normal-operating
mode;
P_7.1.38
CANH, CANL recessive output
voltage difference
Vdiff -0.1 – 0.1 V No load,
Stand-by mode;
P_7.1.39
CANL dominant output voltage VCANL 0.5 – 2.25 V VTxD =0V,
50 Ω < RL<65Ω
Normal-operating
mode;
P_7.1.40
CANH dominant output
voltage
VCANH 2.75 – 4.5 V VTxD =0V,
50 Ω < RL<65Ω
Normal-operating
mode;
P_7.1.41
CANH, CANL dominant output
voltage difference Vdiff =VCANH -
VCANL
Vdiff 1.5 – 3.0 V 4.75 V < VCC <5.25V,
VTxD = 0 V,
50 Ω < RL<65Ω
Normal-operating
mode;
P_7.1.42
Driver
symmetryVSYM =V
CANH +VCANL
VSYM 4.5 5 5.5 V VTXD =0V, VCC =5V,
Normal-operating
mode;
P_7.1.43
CANL short-circuit current ICANLsc 40 75 100 mA VTXD =0V, VCC =5V,
t<tTXD, VCANLshort =
18 V;
P_7.1.44
CANH short-circuit current ICANHsc -100 -75 -40 mA VTXD =0V, VCC =5V,
t<tTXD, VCANHshort =
0V;
P_7.1.45
Leakage current, CANH ICANH,lk -5 – 5 µA VCC =0V,
VCANH =VCANL,
0V<VCANH <5V;
P_7.1.46
Leakage current, CANL ICANL,lk -5 – 5 µA VCC =0V,
VCANH =VCANL,
0V<VCANL <5V;
P_7.1.47
Dynamic CAN-transceiver characteristics
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO <5.5V; 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.
Datasheet 20 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Electrical characteristics
6.2 Diagrams
Figure 9 Simplified test circuit
Propagation delay
TxD-to-RxD “low”;
(“recessive to dominant)
td(L),TR 30 180 255 ns CL= 100 pF,
VCC =5V, CRxD =15pF;
P_7.1.50
Propagation delay
TxD-to-RxD “high”;
(dominant to recessive)
td(H),TR 30 200 255 ns CL= 100 pF,
VCC =5V, CRxD =15pF;
P_7.1.51
Propagation delay
TxD “low” to bus dominant
td(L),T – 100 – ns 1) CL = 100 pF,
VCC = 5 V, CRxD = 15 pF;
P_7.1.52
Propagation delay
TxD “high” to bus recessive
td(H),T –90–ns
1) CL = 100 pF,
VCC = 5 V, CRxD = 15 pF;
P_7.1.53
Propagation delay
bus dominant to RxD “low”
td(L),R –80–ns
1) CL = 100 pF,
VCC = 5 V,CRxD = 15 pF;
P_7.1.54
Propagation delay
bus recessive to RxD “high”
td(H),R – 110 – ns 1) CL = 100 pF;
VCC = 5 V; CRxD = 15 pF;
P_7.1.55
Bus wake-up time tWU 0.535µssee Figure 5 P_7.1.57
Delay time for mode change tMode ––10µs
2) P_7.1.58
1) Not subject to production test, specified by design.
2) Delay time only tested for the mode change from stand-by mode to normal-operating mode. The delay time normal-
operating mode to stand-by mode is not subject to production test and specified by design.
Table 6 Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO <5.5V; 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.
3
GND
2
4
5
1
8
100 nF
6CANL
7CANH
RL
VCC
VIO
TxD
STB
RxD
CL
CRxD
100 nF
Datasheet 21 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Electrical characteristics
Figure 10 Timing diagrams for dynamic characteristics
td(L),R
t
VDIFF
td(L),TR
td(H),R
td(H),TR
td(L),T
t
GND
VTxD
VIO
td(H),T
0,9V
t
GND
0.3 x VIO
0.7 x VIO
VRxD
VIO
0,5V
Datasheet 22 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Application information
7 Application information
7.1 ESD immunity according to IEC61000-4-2
Tests for ESD immunity according to IEC61000-4-2, “GUN test” (150 pF, 330 Ω), have been performed. The
results and test conditions are available in a separate test report.
Table 7 ESD immunity according to IEC61000-4-2
Test performed Result Unit Remarks
Electrostatic discharge voltage at CANH and
CANL pins against GND
≥+9 kV 1)Positive pulse
1) ESD susceptibility “ESD GUN” according to GIFT / ICT paper: “EMC Evaluation of CAN Transceivers,
version 03/02/ IEC TS 62228“, section 4.3. (DIN EN61000-4-2).
Tested by external test facility (IBEE Zwickau, EMC test report no.: 08-04-12).
Electrostatic discharge voltage at pin CANH and
CANL pins against GND
≤-9 kV 1)Negative pulse
Datasheet 23 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Application information
7.2 Application example
Figure 11 Application circuit
7.3 Further application information
• Please contact us for information regarding the pin FMEA.
• For further information you may visit: http://www.infineon.com/automotive-transceivers.
CANH CANL
V
BAT
TLE6251D
V
CC
CANH
CANL
GND
STB
TxD
RxD
7
6
1
4
8
2
3
Microcontroller
e.g. XC22xx
V
CC
GND
Out
Out
In
TLE4476D
GND
IQ1
100 nF
100 nF
22 uF
EN Q2
V
IO
22 uF
100 nF
TLE6251D
V
CC
CANH
CANL
GND
STB
TxD
RxD
7
6
1
4
8
2
3
Microcontroller
e.g. XC22xx
V
CC
GND
Out
Out
In
TLE4476D
GND
IQ1
100 nF 100 nF
22 uF
EN Q2
V
IO
22 uF
100 nF
5
5
optional:
common mode choke
optional:
common mode choke
CANH CANL
120
Ohm
120
Ohm
Datasheet 24 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Package outlines
8 Package outlines
Figure 12 PG-DSO-8 (Plastic Dual Small Outline)1)
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).
Further information on packages
https://www.infineon.com/packages
1) Dimensions in mm
+0.06
0.19
0.35 x 45˚
1)
-0.2
4
C
8 MAX.
0.64
±0.2
6
±0.25
0.2 8x
MC
1.27
+0.1
0.41 0.2 MA
-0.06
1.75 MAX.
(1.45)
±0.07
0.175
B
8x
B
2)
Index Marking
5-0.21)
41
85
A
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Lead width can be 0.61 max. in dambar area
GPS01181
0.1
Datasheet 25 Rev. 1.11
2019-07-17
TLE6251D
High Speed CAN-Transceiver with bus wake-up
Revision history
9 Revision history
Revision Date Changes
1.11 2019-07-17 Editorial changes.
1.1 2016-06-06 Datasheet updated to new style template.
Editorial changes.
• Chapter 4.6 updated: Passage, entering stand-by mode removed.
• Former Chapter 5.6 removed: “Mode Changes during CAN Bus Failures”,
Former Figure 10 in Chapter 5.7 removed.
•Figure 11 “Application circuit” on Page 23 termination resistors added.
1.0 2012-07-27 Datasheet created.
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2019-07-17
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
Z8F53155353
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