TLE8250VSJ [INFINEON]
Interface Circuit, PDSO8, SOP-8;
| 型号： | TLE8250VSJ |
| 厂家： | 
Infineon |
| 描述： | Interface Circuit, PDSO8, SOP-8 电信 光电二极管 电信集成电路 |
| 文件： | 总32页 (文件大小：778K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLE8250V
High Speed CAN Transceiver
1
Overview
Features
•
•
•
•
•
Compliant to ISO11898-2: 2003
Wide common mode range for electromagnetic immunity (EMI)
Very low electromagnetic emission (EME)
Excellent ESD robustness
Guaranteed and improved loop delay symmetry to support CAN FD data
frames up to 2 MBit/s for Japanese OEMs
•
•
•
•
•
•
•
•
•
•
•
•
VIO input for voltage adaption to the microcontroller supply
Extended supply range on VCC and VIO 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
Power-save mode
Transmitter supply VCC can be turned off in power-save mode
Green Product (RoHS compliant)
AEC Qualified
Certified according to latest VeLIO (Vehicle LAN Interoperability & Optimization) test requirements for the
Japanese market
Applications
•
•
•
•
Engine Control Unit (ECUs)
Transmission Control Units (TCUs)
Chassis Control Modules
Electric Power Steering
Description
The TLE8250VSJ is a transceiver designed for HS CAN networks in automotive and industrial applications. As
an interface between the physical bus layer and the CAN protocol controller, the TLE8250VSJ 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 TLE8250VSJ provides a very low level of
Data Sheet
www.infineon.com/transceiver
1
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Overview
electromagnetic emission (EME) within a wide frequency range.
The TLE8250VSJ fulfills or exceeds the requirements of the ISO11898-2.
The TLE8250VSJ provides a digital supply input VIO and a power-save mode. It is designed to fulfill the
enhanced physical layer requirements for CAN FD and supports data rates up to 2 MBit/s.
On the basis of a very low leakage current on the HS CAN bus interface the TLE8250VSJ provides an excellent
passive behavior in power-down state. These and other features make the TLE8250VSJ exceptionally suitable
for mixed supply HS CAN networks.
Based on the Infineon Smart Power Technology SPT, the TLE8250VSJ provides excellent ESD immunity
together with a very high electromagnetic immunity (EMI). The TLE8250VSJ and the Infineon SPT technology
are AEC qualified and tailored to withstand the harsh conditions of the automotive environment.
Two different operating modes, additional fail-safe features like a TxD time-out and the optimized output
slew rates on the CANH and CANL signals, make the TLE8250VSJ the ideal choice for large HS CAN networks
with high data transmission rates.
Type
Package
Marking
8250V
TLE8250VSJ
PG-DSO-8
Data Sheet
2
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Table of Contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
4.1
4.2
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High Speed CAN Physical Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-up and Undervoltage Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power-down State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Forced Power-save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Undervoltage on the Digital Supply VIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Undervoltage on the Transmitter Supply VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Voltage Adaption to the Microcontroller Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.1
4.2.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
5
Fail Safe Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Unconnected Logic Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TxD Time-out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Delay Time for Mode Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1
5.2
5.3
5.4
5.5
6
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1
6.2
6.3
7
7.1
7.2
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Functional Device Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ESD Robustness according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Examples for Mode Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mode Change while the TxD Signal is “low” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mode Change while the Bus Signal is dominant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.1
8.2
8.3
8.3.1
8.3.2
8.4
9
Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10
Data Sheet
3
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Block Diagram
2
Block Diagram
3
5
VCC
VIO
Transmitter
7
1
8
TxD
CANH
CANL
Timeout
Driver
Temp-
protection
6
Mode
control
NEN
Receiver
Normal-mode receiver
4
RxD
VCC/2
=
Bus-biasing
GND
2
Figure 1
Functional block diagram
Data Sheet
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Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
1
2
3
4
8
7
6
5
NEN
CANH
CANL
TxD
GND
VCC
RxD
VIO
Figure 2
Pin configuration
3.2
Pin Definitions
Table 1
Pin No.
1
Pin definitions and functions
Symbol
TxD
Function
Transmit Data Input;
internal pull-up to VIO, “low” for dominant state.
2
3
GND
Ground
VCC
Transmitter Supply Voltage;
100 nF decoupling capacitor to GND required,
V
CC can be turned off in power-save mode.
4
5
RxD
Receive Data Output;
“low” in dominant state.
VIO
Digital Supply Voltage;
supply voltage input to adapt the logical input and output voltage levels of the
transceiver to the microcontroller supply,
100 nF decoupling capacitor to GND required.
6
CANL
CANH
NEN
–
CAN Bus Low Level I/O;
“low” in dominant state.
7
CAN Bus High Level I/O;
“high” in dominant state.
8
Not Enable 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.
Data Sheet
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Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
4
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 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 TLE8250VSJ is a
High Speed CAN transceiver without a wake-up function and defined by the international standard ISO 11898-
2.
4.1
High Speed CAN Physical Layer
VIO
=
=
Digital supply voltage
Transmitter supply voltage
Transmit data input from
the microcontroller
TxD
VCC
TxD
VIO
=
RxD
=
Receive data output to
the microcontroller
CANH =
CANL =
Bus level on the CANH
input/output
t
t
Bus level on the CANL
input/output
CANH
CANL
VDiff
=
Differential voltage
VCC
between CANH and CANL
VDiff = VCANH – VCANL
VDiff
VCC
“dominant” receiver threshold
“recessive” receiver threshold
t
RxD
VIO
tLoop(H,L)
tLoop(L,H)
t
Figure 3
High speed CAN bus signals and logic signals
Data Sheet
6
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
The TLE8250VSJ 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 for CAN FD frames up to 2 MBit/s. Characteristic for HS CAN networks are the two signal states on the
HS CAN bus: dominant and recessive (see Figure 3).
VCC, VIO and GND are the supply pins for the TLE8250VSJ. The pins CANH and CANL are the interface to the
HS CAN bus and operate in both directions, as an input and as an output. RxD and TxD pins are the interface
to the CAN controller, the TxD pin is an input pin and the RxD pin is an output pin. The NEN pin is the input pin
for the mode selection (see Figure 4).
By setting the TxD input pin to logical “low” the transmitter of the TLE8250VSJ drives a dominant signal to the
CANH and CANL pins. Setting TxD input to logical “high” turns off the transmitter and the output voltage on
CANH and CANL discharges towards the recessive level. The recessive output voltage is provided by the bus
biasing (see Figure 1). The output of the transmitter is considered to be dominant, when the voltage difference
between CANH and CANL is at least higher than 1.5 V (VDiff = VCANH - VCANL).
Parallel to the transmitter the normal-mode receiver monitors the signal on the CANH and CANL pins and
indicates it on the RxD output pin. A dominant signal on the CANH and CANL pins sets the RxD output pin to
logical “low”, vice versa a recessive signal sets the RxD output to logical “high”. The normal-mode receiver
considers a voltage difference (VDiff) between CANH and CANL above 0.9 V as dominant and below 0.5 V as
recessive.
To be conform with HS CAN features, like the bit to bit arbitration, the signal on the RxD output has to follow
the signal on the TxD input within a defined loop delay tLoop ≤ 255 ns.
The thresholds of the digital inputs (TxD and NEN) and also the RxD output voltage are adapted to the digital
power supply VIO.
Data Sheet
7
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
4.2
Modes of Operation
The TLE8250VSJ supports two different modes of operation, power-save mode and normal-operating mode
while the transceiver is supplied according to the specified functional range. The mode of operation is
selected by the NEN input pin (see Figure 4).
power-save mode
VCC = “don’t care”
VIO > VIO(UV,R)
NEN = 1
NEN = 0
NEN = 1
normal-operating
mode
VCC > VCC(UV,R)
VIO > VIO(UV,R)
NEN = 0
Figure 4
Mode state diagram
4.2.1
Normal-operating Mode
In normal-operating mode the transmitter and the receiver of the HS CAN transceiver TLE8250VSJ are active
(see Figure 1). The HS CAN transceiver sends the serial data stream on the TxD input pin to the CAN bus. The
data on the CAN bus is displayed at the RxD pin simultaneously. A logical “low” signal on the NEN pin selects
the normal-operating mode, while the transceiver is supplied by VCC and VIO (see Table 2 for details).
4.2.2
Power-save Mode
The power-save mode is an idle mode of the TLE8250VSJ with optimized power consumption. In power-save
mode the transmitter and the normal-mode receiver are turned off. The TLE8250VSJ can not send any data to
the CAN bus nor receive any data from the CAN bus.
The RxD output pin is permanently “high” in the power-save mode.
A logical “high” signal on the NEN pin selects the power-save mode, while the transceiver is supplied by the
digital supply VIO (see Table 2 for details).
In power-save mode the bus input pins are not biased. Therefore the CANH and CANL input pins are floating
and the HS CAN bus interface has a high resistance.
The undervoltage detection on the transmitter supply VCC is turned off, allowing to switch off the VCC supply in
power-save mode.
Data Sheet
8
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
4.3
Power-up and Undervoltage Condition
By detecting an undervoltage event, either on the transmitter supply VCC or the digital supply VIO, the
transceiver TLE8250VSJ changes the mode of operation. Turning off the digital power supply VIO, the
transceiver powers down and remains in the power-down state. While switching off the transmitter supply VCC
,
the transceiver either changes to the forced power-save mode, or remains in power-save mode (details see
Figure 5).
normal-operating
mode
VIO “on”
VCC “on”
NEN “0”
VIO “on”
VCC “on”
NEN “0”
NEN VCC
VIO
0
“on” “on”
VIO “on”
VCC “off”
NEN “0”
VIO “on”
VCC “on”
NEN “0”
power-down
state
forced power-save
mode
VIO “on”
VCC “off”
NEN “0”
NEN VCC
“X” “X”
VIO
NEN VCC
VIO
“off”
0
“off” “on”
VIO “on”
VCC “X”
NEN “1”
VIO “on”
VCC “X”
NEN “1”
power-save
mode
VIO “on”
VCC “X”
NEN “1”
NEN VCC
“X”
VIO
1
“on”
Figure 5
Power-up and undervoltage
Modes of operation
Table 2
Mode
NEN
VIO
VCC
Bus Bias
Transmitter
Normal-mode Low-power
Receiver
Receiver
Normal-operating “low”
Power-save
“on”
“on”
“X”
VCC/2
“on”
“off”
“off”
“off”
“on”
not available
not available
not available
not available
“high” “on”
floating
floating
floating
“off”
Forced power-save “low”
Power-down state “X1)”
1) “X”: Don’t care
“on”
“off”
“off”
“X”
“off”
“off”
Data Sheet
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Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
4.3.1
Power-down State
Independent of the transmitter supply VCC and of the NEN input pin, the TLE8250VSJ is in power-down state
when the digital supply voltage VIO is turned off (see Figure 5).
In the power-down state the input resistors of the receiver are disconnected from the bus biasing VCC/2. The
CANH and CANL bus interface of the TLE8250VSJ 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 (see also Table 2).
4.3.2
Forced Power-save Mode
The forced power-save mode is a fail-safe mode to avoid any disturbance on the HS CAN bus, while the
TLE8250VSJ faces a loss of the transmitter supply VCC
.
In forced power-save mode, the transmitter and the normal-mode receiver are turned off and therefore the
transceiver TLE8250VSJ can not disturb the bus media.
The RxD output pin is permanently set to logical “high”. The bus biasing is floating (details see Table 2).
The forced power-save mode can only be entered when the transmitter supply VCC is not available, either by
powering up the digital supply VIO only or by turning off the transmitter supply in normal-operating mode.
While the transceiver TLE8250VSJ is in forced power-save mode, switching the NEN input to logical “high”
triggers a mode change to power-save mode (see Figure 5).
4.3.3
Power-up
The HS CAN transceiver TLE8250VSJ powers up if at least the digital supply VIO is connected to the device. By
default the device powers up in power-save mode, due to the internal pull-up resistor on the NEN pin to VIO.
In case the device needs to power-up to normal-operating mode, the NEN pin needs to be pulled active to
logical “low” and the supplies VIO and VCC have to be connected.
By supplying only the digital power supply VIO the TLE8250VSJ powers up either in forced power-save mode
or in power-save mode, depending on the signal of the NEN input pin (see Figure 5).
Data Sheet
10
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
4.3.4
Undervoltage on the Digital Supply VIO
If the voltage on VIO supply input falls below the threshold VIO < VIO(UV,F), the transceiver TLE8250VSJ powers
down and changes to the power-down state.
The undervoltage detection on the digital supply VIO has the highest priority. It is independent of the
transmitter supply VCC and also independent of the currently selected operating mode. An undervoltage event
on VIO always powers down the TLE8250VSJ.
transmitter supply voltage VCC = “don’t care”
VIO
VIO undervoltage monitor
VIO(UV,R)
hysteresis
VIO(UV,H)
VIO undervoltage monitor
VIO(UV,F)
tDelay(UV) delay time undervoltage
t
any mode of operation
power-down state
stand-by mode
NEN
“high” due the internal
pull-up resistor1)
“X” = don’t care
t
1) assuming no external signal applied
Figure 6
Undervoltage on the digital supply VIO
4.3.5
Undervoltage on the Transmitter Supply VCC
In case the transmitter supply VCC falls below the threshold VCC < VCC(UV,F), the transceiver TLE8250VSJ changes
the mode of operation to forced power-save mode. The transmitter and also the normal-mode receiver of the
TLE8250VSJ are powered by the VCC supply. In case of an insufficient VCC supply, the TLE8250VSJ can neither
transmit the CANH and CANL signals correctly to the bus, nor can it receive them properly. Therefore the
TLE8250VSJ blocks the transmitter and the receiver in forced power-save mode (see Figure 7).
The undervoltage detection on the transmitter supply VCC is only active in normal-operating mode (see
Figure 5).
Data Sheet
11
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Functional Description
digital supply voltage VIO = “on”
VCC
V
CC undervoltage monitor
VCC(UV,R)
hysteresis
VCC(UV,H)
V
CC undervoltage monitor
VCC(UV,F)
tDelay(UV) delay time undervoltage
t
t
normal-operating mode
forced stand-by mode
normal-operating mode
NEN
Assuming the NEN remains “low”. The “low” signal is driven by the external microcontroller
Figure 7
Undervoltage on the transmitter supply VCC
4.3.6
Voltage Adaption to the Microcontroller Supply
The HS CAN transceiver TLE8250VSJ 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 and it is also the main power domain for the internal logic.
To adjust the digital input and output levels of the TLE8250VSJ to the I/O levels of the external microcontroller,
connect the power supply VIO to the microcontroller I/O supply voltage (see Figure 13).
Note:
In case the digital supply voltage VIO is not required in the application, connect the digital supply
voltage VIO to the transmitter supply VCC
.
Data Sheet
12
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Fail Safe Functions
5
Fail Safe Functions
5.1
Short Circuit Protection
The CANH and CANL bus outputs are short circuit proof, either against GND or a positive supply voltage. A
current limiting circuit protects the transceiver against damages. If the device is heating up due to a
continuous short on the CANH or CANL, the internal overtemperature protection switches off the bus
transmitter.
5.2
Unconnected Logic Pins
All logic input pins have an internal pull-up resistor to VIO. In case the VIO supply is activated and the logical pins
are open, the TLE8250VSJ enters into the power-save mode by default. In power-save mode the transmitter of
the TLE8250VSJ is disabled and the bus bias is floating.
5.3
TxD Time-out Function
The TxD time-out feature protects the CAN bus against permanent blocking in case the logical signal on the
TxD pin is continuously “low”. A continuous “low” signal on the TxD pin 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 TLE8250VSJ
disables the transmitter (see Figure 8). The receiver is still active and the data on the bus continues to be
monitored by the RxD output pin.
t > tTxD
TxD time–out released
TxD time-out
CANH
CANL
t
TxD
RxD
t
t
Figure 8
TxD time-out function
Figure 8 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 TLE8250VSJ requires a signal change on the TxD input pin from logical “low” to
logical “high”.
Data Sheet
13
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Fail Safe Functions
5.4
Overtemperature Protection
The TLE8250VSJ has an integrated overtemperature detection to protect the TLE8250VSJ against thermal
overstress of the transmitter. The overtemperature protection is active in normal-operating mode and
disabled in power-save 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 has cooled down the transmitter is activated again (see Figure 9). A hysteresis is implemented
within the temperature sensor.
TJSD (shut down temperature)
cool down
TJ
˂T
switch-on transmitter
t
CANH
CANL
t
TxD
t
RxD
t
Figure 9
Overtemperature protection
5.5
Delay Time for Mode Change
The HS CAN transceiver TLE8250VSJ changes the mode of operation within the time window tMode. During the
mode change the RxD output pin is permanently set to logical “high” and does not reflect the status on the
CANH and CANL input pins (see as an example Figure 14 and Figure 15).
Data Sheet
14
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
General Product Characteristics
6
General Product Characteristics
6.1
Absolute Maximum Ratings
Table 3
Absolute maximum ratings voltages, currents and temperatures1)
All voltages with respect to ground; positive current flowing into pin;
(unless otherwise specified)
Parameter
Symbol
Values
Unit Note or Test Condition Number
Min. Typ. Max.
Voltages
Transmitter supply voltage VCC
Digital supply voltage VIO
-0.3
-0.3
-40
-40
-40
–
–
–
–
–
6.0
6.0
40
V
V
V
V
V
–
–
–
–
–
P_6.1.1
P_6.1.2
P_6.1.3
P_6.1.4
P_6.1.5
CANH DC voltage versus GND VCANH
CANL DC voltage versus GND VCANL
40
Differential voltage between VCAN_Diff
40
CANH and CANL
Voltages at the input pins:
NEN, TxD
VMAX_IN
-0.3
-0.3
–
–
6.0
V
V
–
–
P_6.1.6
P_6.1.7
Voltages at the output pin:
RxD
VMAX_OUT
VIO
Currents
RxD output current
Temperatures
IRxD
-20
–
20
mA
–
P_6.1.8
Junction temperature
Storage temperature
ESD Resistivity
Tj
-40
-55
–
–
150
150
°C
°C
–
–
P_6.1.9
TS
P_6.1.10
ESD immunity at CANH, CANL VESD_HBM_CAN -10
versus GND
–
–
–
10
2
kV
kV
V
HBM
P_6.1.11
P_6.1.12
P_6.1.13
(100 pF via 1.5 kΩ)2)
ESD immunity at all other
pins
VESD_HBM_ALL -2
VESD_CDM -750
HBM
(100 pF via 1.5 kΩ)2)
ESD immunity to GND
750
CDM3)
1) Not subject to production test, specified by design
2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001
3) ESD susceptibility, Charge Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1
Note:
Stresses above the ones listed here may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability. 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.
Data Sheet
15
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
General Product Characteristics
6.2
Functional Range
Table 4
Functional range
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Supply Voltages
Transmitter supply voltage VCC
4.5
3.0
–
–
5.5
5.5
V
V
–
–
P_6.2.1
P_6.2.2
Digital supply voltage
Thermal Parameters
Junction temperature
VIO
1)
Tj
-40
–
150
°C
P_6.2.3
1) Not subject to production test, specified by design.
Note:
Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics
table.
6.3
Thermal Resistance
Note:
This thermal data was generated in accordance with JEDEC JESD51 standards. For more
information, please visit www.jedec.org.
Table 5
Thermal resistance1)
Parameter
Symbol
Values
Unit Note or Test Condition
K/W 2) TLE8250VSJ
Number
P_6.3.2
Min. Typ. Max.
Thermal Resistances
Junction to Ambient PG-
DSO-8
RthJA
–
130
–
Thermal Shutdown (junction temperature)
Thermal shutdown
temperature
TJSD
150
175
10
200
–
°C
K
–
–
P_6.3.3
P_6.3.4
Thermal shutdown
hysteresis
ΔT
–
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
(TLE8250VSJ) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).
Data Sheet
16
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
7
Electrical Characteristics
7.1
Functional Device Characteristics
Table 6
Electrical characteristics
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Current Consumption
Current consumption at ICC
CC normal-operating
mode
–
–
–
2.6
38
–
4
mA recessive state,
P_7.1.1
P_7.1.2
P_7.1.3
V
VTxD = VIO, VNEN = 0 V;
Current consumption at ICC
60
1
mA dominant state,
VCC normal-operating
VTxD = VNEN = 0 V;
mode
Current consumption at IIO
VIO normal-operating
mode
mA VNEN = 0 V;
Current consumption at ICC(PSM)
VCC power-save mode
–
–
–
5
5
8
µA VTxD = VNEN = VIO;
P_7.1.4
P_7.1.5
Current consumption at IIO(PSM)
VIO power-save mode
µA VTxD = VNEN = VIO,
0 V < VCC < 5.5 V;
Supply Resets
V
CC undervoltage monitor VCC(UV,R)
3.8
4.0
4.3
V
–
P_7.1.6
P_7.1.7
P_7.1.8
P_7.1.9
P_7.1.10
P_7.1.11
rising edge
VCC undervoltage monitor VCC(UV,F)
falling edge
3.65 3.85 4.3
V
–
1)
VCC undervoltage monitor VCC(UV,H)
hysteresis
–
150
2.5
2.3
200
–
–
mV
V
VIO undervoltage monitor VIO(UV,R)
rising edge
2.0
1.8
–
3.0
3.0
–
–
VIO undervoltage monitor VIO(UV,F)
falling edge
V
–
1)
VIO undervoltage monitor VIO(UV,H)
hysteresis
mV
µs
VCC and VIO undervoltage tDelay(UV)
–
100
1) (see Figure 6 and Figure 7); P_7.1.12
delay time
Data Sheet
17
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
Table 6
Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Receiver Output RxD
“High” level output
current
IRD,H
IRD,L
–
2
-4
4
-2
–
mA VRxD = VIO - 0.4 V, VDiff < 0.5 V; P_7.1.13
“Low” level output
current
mA VRxD = 0.4 V, VDiff > 0.9 V;
P_7.1.14
Transmission Input TxD
“High” level input voltage VTxD,H
threshold
–
0.5
× VIO × VIO
0.7
V
V
recessive state;
dominant state;
P_7.1.15
P_7.1.16
“Low” level input voltage VTxD,L
0.3
0.4
–
threshold
× VIO × VIO
Pull-up resistance
Input hysteresis
Input capacitance
RTxD
10
–
25
450
–
50
–
kΩ
mV
pF
–
P_7.1.17
P_7.1.18
P_7.1.19
P_7.1.20
1)
VHYS(TxD)
CTxD
1)
–
10
16
TxD permanent dominant tTxD
4.5
–
ms normal-operating mode;
time-out
Not Enable Input NEN
“High” level input voltage VNEN,H
threshold
–
0.5
× VIO × VIO
0.7
V
V
power-save mode;
P_7.1.21
P_7.1.22
“Low” level input voltage VNEN,L
0.3
0.4
–
normal-operating mode;
threshold
× VIO × VIO
Pull-up resistance
Input capacitance
Input hysteresis
RNEN
10
–
25
–
50
10
–
kΩ
pF
–
P_7.1.23
P_7.1.24
P_7.1.25
1)
CNEN
1)
VHYS(NEN)
–
200
mV
Data Sheet
18
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
Table 6
Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Bus Receiver
2)
Differential receiver
threshold dominant
normal-operating mode
VDiff_D
–
0.75 0.9
V
P_7.1.26
P_7.1.27
P_7.1.28
P_7.1.29
2)
Differential receiver
threshold recessive
normal-operating mode
VDiff_R
0.5
0.66
–
V
1)2)
Differential range
dominant
Normal-operating mode
VDiff_D_Range 0.9
–
–
8.0
0.5
V
1)2)
Differential range
recessive
VDiff_R_Range -3.0
V
Normal-operating mode
Common mode range
CMR
-12
–
–
12
–
V
VCC = 5 V;
1)
P_7.1.30
P_7.1.31
Differential receiver
hysteresis
VDiff,hys
90
mV
normal-operating mode
CANH, CANL input
resistance
Ri
10
20
- 1
–
20
40
–
30
60
1
kΩ recessive state;
kΩ recessive state;
P_7.1.32
P_7.1.33
P_7.1.34
P_7.1.35
P_7.1.36
Differential input
resistance
RDiff
Input resistance deviation ΔRi
between CANH and CANL
%
1) recessive state;
1)
Input capacitance CANH, CIn
CANL versus GND
20
10
40
20
pF
pF
V
V
= VIO;
= VIO;
TxD
TxD
1)
Differential input
capacitance
CIn_Diff
–
Data Sheet
19
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
Table 6
Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Bus Transmitter
CANL/CANH recessive
output voltage
normal-operating mode
VCANL/H
VDiff_NM
VCANL
VCANH
VDiff
2.0
2.5
–
3.0
50
V
VTxD = VIO,
no load;
P_7.1.37
P_7.1.38
P_7.1.39
P_7.1.40
P_7.1.41
CANH, CANL recessive
output voltage difference
normal-operating mode
-500
0.5
mV VTxD = VIO,
no load;
CANL dominant
output voltage
normal-operating mode
–
2.25
4.5
3.0
V
V
V
VTxD = 0 V;
VTxD = 0 V;
CANH dominant
output voltage
normal-operating mode
2.75
1.5
–
CANH, CANL dominant
output voltage difference
normal-operating mode
according to ISO 11898-2
–
VTxD = 0 V, 50 Ω < RL < 65 Ω,
4.75 < VCC < 5.25 V;
VDiff = VCANH - VCANL
CANH, CANL dominant
output voltage difference
normal-operating mode
VDiff = VCANH - VCANL
VDiff_EXT
1.4
–
3.3
5.0
5.5
V
V
V
VTxD = 0 V, 45 Ω < RL < 70 Ω,
4.75 < VCC < 5.25 V;
P_7.1.42
P_7.1.43
P_7.1.44
Differential voltage
dominant high extended
bus load
VDiff_HEX_BL 1.5
–
VTxD = 0 V,
RL = 2240Ω,
4.75 V < VCC < 5.25 V, static
Normal-operating mode
behavior;1)
Driver dominant
symmetry
VSYM
4.5
5
VCC = 5.0 V, VTxD = 0 V;
normal-operating mode
V
SYM = VCANH + VCANL
CANL short circuit current ICANLsc
40
75
100
-40
5
mA VCANLshort = 18 V, VCC = 5.0 V, P_7.1.45
t < tTxD, VTxD = 0 V;
CANH short circuit current ICANHsc
-100 -75
mA VCANHshort = -3 V, VCC = 5.0 V,
t < tTxD, VTxD = 0 V;
P_7.1.46
Leakage current, CANH
Leakage current, CANL
ICANH,lk
-5
-5
–
–
µA VCC = VIO = 0 V,
0 V < VCANH < 5 V,
P_7.1.47
VCANH = VCANL
;
ICANL,lk
5
µA VCC = VIO = 0 V,
0 V < VCANL < 5 V,
P_7.1.48
V
CANH = VCANL;
Data Sheet
20
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
Table 6
Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
Dynamic CAN-Transceiver Characteristics
Propagation delay
TxD-to-RxD “low”
(“recessive to dominant)
tLoop(H,L)
tLoop(L,H)
td(L),T
–
–
–
–
–
–
170
170
90
230
230
140
140
140
140
ns
ns
ns
ns
ns
ns
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
P_7.1.49
P_7.1.50
P_7.1.51
P_7.1.52
P_7.1.53
P_7.1.54
Propagation delay
TxD-to-RxD “high”
(dominant to recessive)
CL = 100 pF,
4.75 V < VCC < 5.25 V,
C
RxD = 15 pF;
Propagation delay
TxD “low” to bus
dominant
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
Propagation delay
TxD “high” to bus
recessive
td(H),T
90
CL = 100 pF,
4.75 V < VCC < 5.25 V,
C
RxD = 15 pF;
Propagation delay
bus dominant to RxD
“low”
td(L),R
90
CL = 100 pF,
4.75 V < VCC < 5.25 V,
C
RxD = 15 pF;
Propagation delay
bus recessive to RxD
“high”
td(H),R
90
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
Delay Times
Delay time for mode
change
tMode
–
–
20
µs
1) (see Figure 14 and
Figure 15);
P_7.1.55
Data Sheet
21
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
Table 6
Electrical characteristics (cont’d)
4.5 V < VCC < 5.5 V; 3.0 V < VIO < 5.5 V; RL = 60 Ω; -40 °C < Tj < 150 °C; all voltages with respect to ground; positive
current flowing into pin; unless otherwise specified.
Parameter
Symbol
Values
Unit Note or Test Condition
Number
Min. Typ. Max.
CAN FD Characteristics
Received recessive bit
width
at 2 MBit/s
tBit(RxD)_2MB 430
500
500
–
530
530
20
ns
ns
ns
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF, tBit = 500 ns,
(see Figure 12);
P_7.1.56
Transmitted recessive bit tBit(Bus)_2MB 450
width
at 2 MBit/s
CL = 100 pF,
P_7.1.57
P_7.1.58
4.75 V < VCC < 5.25 V,
CRxD = 15 pF, tBit = 500 ns,
(see Figure 12);
Receiver timing symmetry ΔtRec_2MB
at 2 MBit/s
-45
CL = 100 pF,
4.75 V < VCC < 5.25 V,
ΔtRec = tBit(RxD) - tBit(Bus)
C
RxD = 15 pF, tBit = 500 ns,
(see Figure 12);
1) Not subject to production test, specified by design.
2) In respect to common mode range.
Data Sheet
22
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
7.2
Diagrams
5
VIO
100 nF
7
6
CANH
CANL
1
8
TxD
NEN
CL
RL
4
3
RxD
VCC
CRxD
GND
2
100 nF
Figure 10
Test circuits for dynamic characteristics
TxD
0.7 x VIO
0.3 x VIO
t
t
td(L),T
td(H),T
VDiff
0.9 V
0.5 V
td(H),R
td(L),R
tLoop(H,L)
tLoop(L,H)
RxD
0.7 x VIO
0.3 x VIO
t
Figure 11
Timing diagrams for dynamic characteristics
Data Sheet
23
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Electrical Characteristics
TxD
0.7 x VIO
0.3 x VIO
0.3 x VIO
t
t
5 x tBit
tBit
tLoop(H,L)
tBit(Bus)
VDiff = VCANH - VCANL
VDiff
0.9 V
0.5 V
tLoop(L,H)
tBit(RxD)
RxD
0.7 x VIO
0.3 x VIO
t
Figure 12
Recessive bit time - five dominant bits followed by one recessive bit
Data Sheet
24
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Application Information
8
Application Information
8.1
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 7
ESD robustness according to IEC61000-4-2
Result Unit
Performed Test
Remarks
Electrostatic discharge voltage at pin CANH and ≥ +8
kV
1)Positive pulse
CANL versus GND
Electrostatic discharge voltage at pin CANH and ≤ -8
kV
1)Negative pulse
CANL versus GND
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 no. TBD).
Data Sheet
25
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Application Information
8.2
Application Example
VBAT
I
Q1
Q2
22 uF
TLE4476D
GND
100 nF
CANH
CANL
EN
100 nF
3
VCC
100 nF
22 uF
VIO
5
8
1
4
120
Ohm
TLE8250VSJ
VCC
Out
Out
In
NEN
7
6
CANH
CANL
TxD
RxD
Microcontroller
e.g. XC22xx
optional:
common mode choke
GND
GND
2
I
Q1
Q2
22 uF
TLE4476D
GND
100 nF
EN
3
VCC
100 nF
22 uF
VIO
100 nF
5
8
1
4
TLE8250VSJ
VCC
Out
Out
In
NEN
7
6
CANH
CANL
TxD
RxD
Microcontroller
e.g. XC22xx
optional:
common mode choke
GND
120
Ohm
GND
2
CANH
CANL
example ECU design
Figure 13
Application circuit
Data Sheet
26
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Application Information
8.3
Examples for Mode Changes
•
The mode change is executed independently of the signal on the HS CAN bus. The CANH, CANL inputs may
be either dominant or recessive. They can be also permanently shorted to GND or VCC
.
•
A mode change is performed independently of the signal on the TxD input. The TxD input may be either
logical “high” or “low”.
Analog to that, changing the NEN input pin to logical “high” changes the mode of operation to the power-save
mode independent on the signals at the CANH, CANL and TxD pins.
Note:
In case the TxD signal is “low” setting the NEN input pin to logical “low” changes the operating mode
of the device to normal-operating mode and drives a dominant signal to the HS CAN bus.
Note:
The TxD time-out is only effective in normal-operating mode. The TxD time-out timer starts when the
TLE8250VSJ enters normal-operating mode and the TxD input is set to logical “low”.
Data Sheet
27
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Application Information
8.3.1
Mode Change while the TxD Signal is “low”
The example in Figure 14 shows a mode change to normal-operating mode while the TxD input is logical
“low”. The HS CAN signal is recessive, assuming all other HS CAN bus subscribers are also sending a recessive
bus signal.
While the transceiver TLE8250VSJ is in power-save mode, the transmitter and the normal-mode receiver are
turned off. The TLE8250VSJ drives no signal to the HS CAN bus nor does it receive any signal from the HS CAN
bus. Changing the NEN to logical “low” turns the mode of operation to normal-operating mode, while the TxD
input signal remains logical “low”. The transmitter and the normal-mode receiver remain disabled until the
mode transition is completed. In normal-operating mode the transmitter and the normal-mode receiver are
active. The “low” signal on the TxD input drives a dominant signal to the HS CAN bus and the RxD output
becomes logical “low” following the dominant signal on the HS CAN bus.
Changing the NEN pin back to logical “high”, disables the transmitter and normal-mode receiver again. The
RxD output pin is blocked and set to logical “high” with the start of the mode transition. The TxD input and the
transmitter are blocked and the HS CAN bus becomes recessive.
Note: The signals on the HS CAN bus are “recessive”, the “dominant” signal is
generated by the TxD input signal
t = tMode
t = tMode
NEN
TxD
t
t
VDiff
t
t
RxD
power-save
transition
normal-operating
transition
power-save mode
normal-mode
receiver disabled
RxD output
blocked
normal-mode receiver
active
RxD output
blocked
normal-mode receiver
disabled
TxD input and transmitter
blocked
TxD input and transmitter
active
TxD input and transmitter blocked
Figure 14
Example for a mode change while the TxD is “low”
Data Sheet
28
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Application Information
8.3.2
Mode Change while the Bus Signal is dominant
The example in Figure 15 shows a mode change while the bus is dominant and the TxD input signal is set to
logical “high”.
While the transceiver TLE8250VSJ is in power-save mode, the transmitter and the normal-mode receiver are
turned off. The TLE8250VSJ drives no signal to the HS CAN bus nor does it receive any signal from the HS CAN
bus. Changing the NEN to logical “low” turns the mode of operation to normal-operating mode, while the TxD
input signal remains logical “high”. The transmitter and the normal-mode receiver remain disabled until the
mode transition is completed. In normal-operating mode the transmitter of TLE8250VSJ remains recessive,
because of the logical “high” signal on the TxD input. The normal-mode receiver becomes active and the RxD
output signal changes to logical “low” following the dominant signal on the HS CAN bus.
Changing the NEN pin back to logical “high”, disables the transmitter and normal-mode receiver again. The
RxD output pin is blocked and set to logical “high” with the start of the mode transition.
Note: The “dominant” signal on the HS CAN bus is set by another HS CAN bus
subscriber.
t = tMode
t = tMode
NEN
TxD
t
t
VDiff
t
t
RxD
power-save mode
transition
normal-operating
transition
power-save mode
normal-mode receiver
disabled
RxD output
blocked
normal-mode receiver
active
RxD output
blocked
normal-mode receiver
disabled
TxD input and transmitter
active
TxD input and transmitter blocked
TxD input and transmitter blocked
Figure 15
Example for a mode change while the HS CAN is dominant
8.4
Further Application Information
•
•
•
Please contact us for information regarding the pin FMEA.
Existing application note.
For further information you may visit: http://www.infineon.com/
Data Sheet
29
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Package Outline
9
Package Outline
0.35 x 45˚
1)
4-0.2
C
1.27
B
0.1
±0.25
0.64
+0.1 2)
-0.06
0.41
±0.2
6
M
M
0.2
A B 8x
0.2
C 8x
8
5
1
4
A
1)
5-0.2
Index Marking
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Lead width can be 0.61 max. in dambar area
Figure 16
PG-DSO-8 (Plastic Dual Small Outline PG-DSO-8)
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
30
Rev. 1.0
2016-07-15
TLE8250V
High Speed CAN Transceiver
Revision History
10
Revision History
Revision
1.0
Date
Changes
2016-07-15 Data Sheet created.
Data Sheet
31
Rev. 1.0
2016-07-15
Please read the Important Notice and Warnings at the end of this document
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