TLE7250VLEXUMA1 [INFINEON]
Interface Circuit, PDSO8, TSON-8;
| 型号： | TLE7250VLEXUMA1 |
| 厂家： | 
Infineon |
| 描述： | Interface Circuit, PDSO8, TSON-8 电信 光电二极管 电信集成电路 |
| 文件： | 总34页 (文件大小：1621K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLE7250V
High Speed CAN-Transceiver
TLE7250VLE
TLE7250VSJ
Data Sheet
Rev. 1.0, 2015-08-12
Automotive Power
TLE7250VLE
TLE7250VSJ
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1
2
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
4.1
4.2
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
High Speed CAN Physical Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-up and Undervoltage Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power-down State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Forced Power-save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Undervoltage on the Digital Supply VIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Undervoltage on the Transmitter Supply VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Voltage Adaption to the Microcontroller Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unconnected Logic Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TxD Time-out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delay Time for Mode Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1
5.2
5.3
5.4
5.5
6
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1
6.2
6.3
7
7.1
7.2
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Functional Device Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ESD Robustness according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Examples for Mode Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mode Change while the TxD Signal is “low” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mode Change while the Bus Signal is “dominant” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1
8.2
8.3
8.3.1
8.3.2
8.4
9
Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10
Data Sheet
2
Rev. 1.0, 2015-08-12
High Speed CAN-Transceiver
TLE7250VLE
TLE7250VSJ
1
Overview
Features
•
•
•
•
•
Fully compatible to ISO 11898-2
Wide common mode range for electromagnetic immunity (EMI)
Very low electromagnetic emission (EME)
Excellent ESD robustness
Guaranteed loop delay symmetry to support CAN FD data frames up
to 2 MBit/s
•
•
•
•
•
•
•
•
•
•
•
•
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
PG-TSON-8
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)
Two package variants: PG-TSON-8 and PG-DSO-8
AEC Qualified
PG-DSO-8
Description
The TLE7250V 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 TLE7250V 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 TLE7250V provides a very low level of electromagnetic emission
(EME) within a wide frequency range.
The TLE7250V is available in a small, leadless PG-TSON-8 package and in a PG-DSO-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). The TLE7250VLE and the TLE7250VSJ are fulfilling or
exceeding the requirements of the ISO11898-2.
The TLE7250V 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 TLE7250V provides an excellent
passive behavior in power-down state. These and other features make the TLE7250V exceptionally suitable for
Type
Package
Marking
7250V
TLE7250VLE
TLE7250VSJ
PG-TSON-8
PG-DSO-8
7250V
Data Sheet
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Rev. 1.0,2015-08-12
TLE7250VLE
TLE7250VSJ
Overview
mixed supply HS CAN networks.
Based on the Infineon Smart Power Technology SPT, the TLE7250V provides excellent ESD immunity together
with a very high electromagnetic immunity (EMI). The TLE7250V 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 TLE7250V the ideal choice for large HS CAN networks with high data
transmission rates.
Data Sheet
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Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Block Diagram
2
Block Diagram
3
VCC
5
VIO
Transmitter
7
1
TxD
CANH
CANL
Timeout
Driver
Temp-
protection
6
8
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, 2015-08-12
TLE7250VLE
TLE7250VSJ
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
NEN
1
8
TxD
GND
VCC
1
2
3
4
8
NEN
CANH
CANL
TxD
GND
VCC
CANH
CANL
2
7
PAD
7
6
5
3
4
6
5
RxD
VIO
(Top-side x-ray view)
RxD
VIO
Figure 2
Pin configuration
3.2
Pin Definitions
Table 1
Pin No.
1
Pin definitions and functions
Symbol
Function
TxD
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
7
CANL
CANH
CAN Bus Low Level I/O;
“low” in “dominant” state.
CAN Bus High Level I/O;
“high” in “dominant” state.
Data Sheet
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Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Pin Configuration
Table 1
Pin No.
8
Pin definitions and functions (cont’d)
Symbol
Function
NEN
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, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 TLE7250V 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
8
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Functional Description
The TLE7250V 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 TLE7250V. 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 TLE7250V 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
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Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Functional Description
4.2
Modes of Operation
The TLE7250V 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 TLE7250V 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 TLE7250V with optimized power consumption. In power-save mode
the transmitter and the normal-mode receiver are turned off. The TLE7250V 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
10
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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
TLE7250V 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
Power-save
“low”
“on”
“on”
“on”
“off”
“on”
“X”
VCC/2
“on”
“off”
“off”
“off”
“on”
not available
not available
not available
not available
“high”
floating
floating
floating
“off”
Forced power-save “low”
Power-down state “X”
“off”
“X”
“off”
“off”
Data Sheet
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Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Functional Description
4.3.1
Power-down State
Independent of the transmitter supply VCC and of the NEN input pin, the TLE7250V 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 TLE7250V 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
TLE7250V 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 TLE7250V 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 TLE7250V 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 TLE7250V 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 TLE7250V 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
12
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 TLE7250V 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 TLE7250V.
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
Data Sheet
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Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Functional Description
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 TLE7250V changes
the mode of operation to forced power-save mode. The transmitter and also the normal-mode receiver of the
TLE7250V are powered by the VCC supply. In case of an insufficient VCC supply, the TLE7250V can neither
transmit the CANH and CANL signals correctly to the bus, nor can it receive them properly. Therefore the
TLE7250V 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).
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 TLE7250V 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 TLE7250V 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
14
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 TLE7250V enters into the power-save mode by default. In power-save mode the transmitter of the
TLE7250V 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 TLE7250V 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
t
RxD
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 TLE7250V requires a signal change on the TxD input pin from logical “low” to logical “high”.
Data Sheet
15
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Fail Safe Functions
5.4
Overtemperature Protection
The TLE7250V has an integrated overtemperature detection to protect the TLE7250V 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 TLE7250V 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
16
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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
Typ.
Unit Note /
Test Condition
Number
Min.
Max.
Voltages
Transmitter supply voltage
Digital supply voltage
VCC
VIO
-0.3
-0.3
-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
CANH and CANL
VCAN_Diff -40
VMAX_IN -0.3
VMAX_OUT -0.3
40
Voltages at the input pins:
NEN, TxD
–
–
6.0
V
V
–
–
P_6.1.6
P_6.1.7
Voltages at the output pin:
RxD
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_ -9
–
–
–
9
kV
kV
V
HBM
P_6.1.11
P_6.1.12
P_6.1.13
versus GND
(100 pF via 1.5 kΩ)2)
CAN
ESD immunity at all other pins
ESD immunity to GND
VESD_HBM_ -2
2
HBM
(100 pF via 1.5 kΩ)2)
ALL
VESD_CDM -750
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
17
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
General Product Characteristics
6.2
Functional Range
Table 4
Functional range
Parameter
Symbol
Values
Unit Note /
Number
Test Condition
Min.
Typ. Max.
Supply Voltages
Transmitter supply voltage
Digital supply voltage
Thermal Parameters
Junction temperature
VCC
VIO
4.5
3.0
–
–
5.5
5.5
V
V
–
–
P_6.2.1
P_6.2.2
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
Typ.
Unit
Note /
Test Condition
Number
Min.
Max.
Thermal Resistances
Junction to Ambient PG-TSON-8
Junction to Ambient PG-DSO-8
RthJA
RthJA
–
–
55
–
–
K/W
K/W
2) TLE7250VLE P_6.3.1
2) TLE7250VSJ P_6.3.2
130
Thermal Shutdown (junction temperature)
Thermal shutdown temperature
Thermal shutdown hysteresis
TJSD
150
–
175
10
200
–
°C
K
–
–
P_6.3.3
P_6.3.4
∆T
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 (TLE7250V)
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
18
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 / Test Condition
Number
Min. Typ. Max.
Current Consumption
Current consumption at VCC
normal-operating mode
ICC
–
–
–
–
–
2.6
38
–
4
mA
mA
mA
µA
“recessive” state,
TxD = VIO, VNEN = 0 V;
“dominant” state,
P_7.1.1
P_7.1.2
P_7.1.3
P_7.1.4
P_7.1.5
V
Current consumption at VCC
normal-operating mode
ICC
60
1
V
V
TxD = VNEN = 0 V;
Current consumption at VIO
normal-operating mode
IIO
NEN = 0 V;
Current consumption at VCC
power-save mode
ICC(PSM)
IIO(PSM)
–
5
V
V
TxD = VNEN = VIO;
TxD = VNEN = VIO,
Current consumption at VIO
5
8
µA
power-save mode
0 V < VCC < 5.5 V;
Supply Resets
V
CC undervoltage monitor
rising edge
CC undervoltage monitor
falling edge
CC undervoltage monitor
VCC(UV,R) 3.8
VCC(UV,F) 3.65
4.0
3.85
150
2.5
2.3
200
–
4.3
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
P_7.1.12
V
V
–
1)
V
VCC(UV,H)
VIO(UV,R) 2.0
VIO(UV,F) 1.8
–
mV
V
hysteresis
VIO undervoltage monitor
rising edge
3.0
3.0
–
–
VIO undervoltage monitor
falling edge
V
–
1)
VIO undervoltage monitor
hysteresis
VIO(UV,H)
–
–
mV
µs
VCC and VIO undervoltage delay tDelay(UV)
100
1) (see Figure 6 and
Figure 7);
time
Receiver Output RxD
“High” level output current
IRD,H
IRD,L
–
2
-4
4
-2
–
mA
mA
V
V
RxD = VIO - 0.4 V,
Diff < 0.5 V;
P_7.1.13
“Low” level output current
V
RxD = 0.4 V,V Diff > 0.9 V; P_7.1.14
Data Sheet
19
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 / Test Condition
Number
Min. Typ. Max.
Transmission Input TxD
“High” level input voltage
threshold
VTxD,H
VTxD,L
–
0.5
0.7
V
V
“recessive” state;
“dominant” state;
P_7.1.15
P_7.1.16
× VIO × VIO
“Low” level input voltage
threshold
0.3
0.4
–
× VIO × VIO
Pull-up resistance
Input hysteresis
Input capacitance
RTxD
10
–
25
450
–
50
–
kΩ
mV
pF
–
1)
P_7.1.17
P_7.1.18
P_7.1.19
P_7.1.20
VHYS(TxD)
CTxD
1)
–
10
16
TxD permanent “dominant”
time-out
tTxD
4.5
–
ms
normal-operating mode;
Not Enable Input NEN
“High” level input voltage
threshold
VNEN,H
VNEN,L
–
0.5
0.7
V
V
power-save mode;
P_7.1.21
P_7.1.22
× VIO × VIO
“Low” level input voltage
threshold
0.3
0.4
–
normal-operating mode;
× VIO × VIO
Pull-up resistance
Input capacitance
Input hysteresis
Bus Receiver
RNEN
10
–
25
–
50
10
–
kΩ
pF
–
1)
P_7.1.23
P_7.1.24
P_7.1.25
CNEN
1)
VHYS(NEN)
–
200
mV
2)
Differential receiver threshold
“dominant”
normal-operating mode
VDiff_D
VDiff_R
CMR
–
0.75
0.66
0.9
–
V
V
P_7.1.26
P_7.1.27
2)
Differential receiver threshold
“recessive”
normal-operating mode
0.5
Common mode range
-12
–
–
12
–
V
V
1)
CC = 5 V;
P_7.1.28
P_7.1.29
Differential receiver hysteresis VDiff,hys
90
mV
normal-operating mode
CANH, CANL input resistance Ri
10
20
- 1
20
40
–
30
60
1
kΩ
kΩ
%
“recessive” state;
“recessive” state;
1) “recessive” state;
P_7.1.30
P_7.1.31
P_7.1.32
Differential input resistance
RDiff
Input resistance deviation
between CANH and CANL
∆Ri
Input capacitance CANH, CANL CIn
versus GND
–
–
20
10
40
20
pF
pF
1) VTxD = VIO;
1) VTxD = VIO;
P_7.1.33
P_7.1.34
Differential input capacitance
CIn_Diff
Data Sheet
20
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 / Test Condition
Number
Min. Typ. Max.
Bus Transmitter
CANL/CANH “recessive”
output voltage
normal-operating mode
VCANL/H 2.0
2.5
–
3.0
50
V
V
TxD = VIO,
P_7.1.35
P_7.1.36
P_7.1.37
P_7.1.38
P_7.1.39
no load;
CANH, CANL “recessive”
output voltage difference
normal-operating mode
VDiff_NM -500
mV
V
V
TxD = VIO,
no load;
CANL “dominant”
output voltage
normal-operating mode
VCANL
VCANH
VDiff
0.5
–
2.25
4.5
3.0
V
V
V
TxD = 0 V;
TxD = 0 V;
TxD = 0 V,
CANH “dominant”
output voltage
normal-operating mode
2.75
1.5
–
V
CANH, CANL “dominant”
output voltage difference
normal-operating mode
according to ISO 11898-2
–
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_R45 1.4
–
3.0
V
V
TxD = 0 V,
P_7.1.40
45 Ω < RL < 50 Ω,
4.75 < VCC < 5.25 V;
VDiff = VCANH - VCANL
Driver “dominant” symmetry
normal-operating mode
VSYM = VCANH + VCANL
VSYM
4.5
40
5
5.5
100
-40
5
V
V
CC = 5.0 V, VTxD = 0 V;
P_7.1.41
P_7.1.42
P_7.1.43
P_7.1.44
P_7.1.45
CANL short circuit current
CANH short circuit current
Leakage current, CANH
Leakage current, CANL
ICANLsc
ICANHsc
ICANH,lk
ICANL,lk
75
mA
mA
µA
µA
V
V
V
CANLshort = 18 V,
CC = 5.0 V, t < tTxD
TxD = 0 V;
,
,
-100 -75
V
V
V
CANHshort = 0 V,
CC = 5.0 V, t < tTxD
TxD = 0 V;
-5
-5
–
–
V
CC = VIO = 0 V,
0 V < VCANH < 5 V,
V
CANH = VCANL
;
5
V
CC = VIO = 0 V,
0 V < VCANL < 5 V,
CANH = VCANL
V
;
Data Sheet
21
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 / Test Condition
Number
Min. Typ. Max.
Dynamic CAN-Transceiver Characteristics
Propagation delay
TxD-to-RxD “low”
(“recessive to “dominant”)
tLoop(H,L)
–
–
–
180
180
–
255
255
300
ns
ns
ns
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
P_7.1.46
P_7.1.47
P_7.1.53
Propagation delay
TxD-to-RxD “high”
(“dominant” to “recessive”)
tLoop(L,H)
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
1) CL = 200 pF,
Propagation delay
extended load
tLoop_Ext(H
RL = 120 Ω, 4.75 V <
,L)
TxD-to-RxD “low”
(“recessive to “dominant”)
V
C
CC < 5.25 V,
RxD = 15 pF;
Propagation delay
extended load
tLoop_Ext(L
–
–
300
ns
1) CL = 200 pF,
RL = 120 Ω, 4.75 V <
P_7.1.54
,H)
TxD-to-RxD “high”
(“dominant” to “recessive”)
V
C
CC < 5.25 V,
RxD = 15 pF;
Propagation delay
TxD “low” to bus “dominant”
td(L),T
td(H),T
td(L),R
td(H),R
–
–
–
–
90
90
90
90
140
140
140
140
ns
ns
ns
ns
CL = 100 pF,
4.75 V < VCC < 5.25 V,
P_7.1.48
P_7.1.49
P_7.1.50
P_7.1.51
CRxD = 15 pF;
Propagation delay
TxD “high” to bus “recessive”
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
Propagation delay
bus “dominant” to RxD “low”
CL = 100 pF,
4.75 V < VCC < 5.25 V,
CRxD = 15 pF;
Propagation delay
CL = 100 pF,
bus “recessive” to RxD “high”
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_7.1.52
Data Sheet
22
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 / Test Condition
Number
Min. Typ. Max.
CAN FD Characteristics
Received recessive bit width
at 2 MBit/s
tBit(RxD)_2 400
500
500
–
550
530
40
ns
ns
ns
CL = 100 pF,
4.75 V < VCC < 5.25 V,
P_7.1.55
MB
CRxD = 15 pF,
t
Bit = 500 ns,
(see Figure 12);
Transmitted recessive bit width tBit(Bus)_2 435
at 2 MBit/s
CL = 100 pF,
4.75 V < VCC < 5.25 V,
P_7.1.56
P_7.1.57
MB
CRxD = 15 pF,
t
Bit = 500 ns,
(see Figure 12);
Receiver timing symmetry
at 2 MBit/s
ΔtRec_2MB -65
CL = 100 pF,
4.75 V < VCC < 5.25 V,
∆tRec = tBit(RxD) - tBit(Bus)
C
t
RxD = 15 pF,
Bit = 500 ns,
(see Figure 12);
1) Not subject to production test, specified by design.
2) In respect to common mode range.
Data Sheet
23
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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
td(L),T
td(H),T
VDiff
0.9 V
0.5 V
t
td(L),R
td(H),R
tLoop(H,L)
tLoop(L,H)
RxD
0.7 x VIO
0.3 x VIO
t
Figure 11 Timing diagrams for dynamic characteristics
Data Sheet
24
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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
25
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Application Information
8
Application Information
8.1
ESD Robustness according to IEC61000-4-2
Test 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
26
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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
TLE7250VLE
VCC
Out
NEN
TxD
RxD
7
6
CANH
CANL
Out
Microcontroller
e.g. XC22xx
In
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
TLE7250VLE
VCC
Out
NEN
TxD
RxD
7
6
CANH
Out
Microcontroller
e.g. XC22xx
In
CANL
2
optional:
common mode choke
GND
120
Ohm
GND
CANH
CANL
example ECU design
Figure 13 Application circuit
Data Sheet
27
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Application Information
8.3
Examples for Mode Changes
Changing the status on the NEN input pin triggers a change of the operating mode, disregarding the actual signal
on the CANH, CANL and TxD pins (see also Chapter 4.2).
Mode changes are triggered by the NEN pin, when the device TLE7250V is fully supplied. Setting the NEN pin to
logical “low” changes the mode of operation to normal-operating mode:
•
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
TLE7250V enters normal-operating mode and the TxD input is set to logical “low”.
Data Sheet
28
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 TLE7250V is in power-save mode, the transmitter and the normal-mode receiver are turned
off. The TLE7250V 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
29
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
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 TLE7250V is in power-save mode, the transmitter and the normal-mode receiver are turned
off. The TLE7250V 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 TLE7250V 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”
Data Sheet
30
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Application Information
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
31
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Package Outline
9
Package Outline
±±0.
204
±±0.
±0.
±±0.
±±0.
±±0.
3
±03
±038
±0±5
Z
±±0.
±065
Pin . Marking
±±0.
Pin . Marking
Z (4:.)
±03
PG-TSON-8-.-PO V±.
±0±7 MIN0
Figure 16 PG-TSON-8 (Plastic Thin Small Outline Nonleaded PG-TSON-8-1)
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
4
1
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
GPS01181
Figure 17 PG-DSO-8 (Plastic Dual Small Outline PG-DSO-8-44)
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
32
Rev. 1.0, 2015-08-12
TLE7250VLE
TLE7250VSJ
Revision History
10
Revision History
Revision
Date
Changes
Data Sheet created.
1.00
2015-08-12
Data Sheet
33
Rev. 1.0, 2015-08-12
Edition 2015-08-12
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2006 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
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