TLE7250G [INFINEON]
High Speed CAN Transceiver; 高速CAN收发器
| 型号： | TLE7250G |
| 厂家： | 
Infineon |
| 描述： | High Speed CAN Transceiver |
| 文件： | 总22页 (文件大小：1385K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLE7250G
High Speed CAN Transceiver
Data Sheet
Rev. 1.0, 2012-03-01
Automotive Power
TLE7250G
Table of Contents
1
2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High Speed CAN Physical Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Receive-only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Stand-by Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power-down state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1
4.2
4.3
4.4
4.5
4.6
5
Fail-safe Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Short-circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Unconnected Logic Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TxD Time-out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Undervoltage Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1
5.2
5.3
5.4
5.5
6
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1
6.2
6.3
7
7.1
7.2
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Functional Device Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ESD Immunity According to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.1
8.2
8.3
9
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10
Data Sheet
2
Rev. 1.0, 2012-03-01
High Speed CAN Transceiver
TLE7250G
1
Overview
Features
•
•
•
•
•
•
•
•
•
•
•
•
Fully compliant with ISO 11898-2
Wide common mode range for electromagnetic immunity (EMI)
Very low electromagnetic emission (EME)
Excellent ESD immunity
CAN short-circuit proof to ground, battery and VCC
TxD time-out function
Low CAN bus leakage current in power-down state
Overtemperature protection
Protected against automotive transients
CAN data transmission rate up to 1 Mbps
Green Product (RoHS-compliant)
PG-DSO-8
AEC Qualified
Description
The TLE7250G is a transceiver designed for High Speed CAN networks in automotive and industrial applications.
As an interface between the physical bus layer and the CAN protocol controller, the TLE7250G 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 TLE7250G provides a very low level of electromagnetic emission
(EME) within a wide frequency range. The TLE7250G is integrated in a RoHS compliant PG-DSO-8 package and
fulfills or exceeds the requirements of ISO 11898-2.
As a successor to the first generation of HS CAN transceivers, the pin assignment and function of the TLE7250G
is fully compatible with its predecessor model, the TLE6250G. The TLE7250G is optimized to provide an excellent
passive behavior in the power-down state. This feature makes the TLE7250G extremely suitable for mixed supply
CAN networks.
Based on the Infineon Smart Power Technology SPT, the TLE7250G provides excellent ESD immunity together
with a very high electromagnetic immunity (EMI). The Infineon Smart Power Technology SPT allows bipolar and
CMOS control circuitry in accordance with DMOS power devices to exist on the same monolithic circuit. The
TLE7250G and the Infineon SPT technology are AEC qualified and tailored to withstand the harsh conditions of
the Automotive Environment.
Three different operating modes, additional fail-safe features like TxD time-out and the optimized output slew rates
on the CANH and CANL signals make the TLE7250G the ideal choice for large CAN networks with high data
transmission rates.
Type
Package
Marking
TLE7250G
PG-DSO-8
7250G
Data Sheet
3
Rev. 1.0, 2012-03-01
TLE7250G
Block Diagram
2
Block Diagram
3
VCC
Transmitter
7
6
1
Driver
CANH
CANL
TxD
Output
Stage
Temp-
Protection
Timeout
8
Mode Control
NEN
5
NRM
Receiver
VCC/2
=
Compara-
tor
*
4
RxD
2
GND
Figure 1
Block diagram
Note:In comparison with theTLE6250G, the pin 8 (INH) was renamed as NEN, but the function remains
unchanged. NEN stands for NotENable. The name of pin 5 has been changed from RM (TLE6250G) to NRM
on the TLE7250G. The function of pin 5 remains unchanged.
Data Sheet
4
Rev. 1.0, 2012-03-01
TLE7250G
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
1
2
3
4
8
7
6
5
TxD
GND
VCC
NEN
CANH
CANL
NRM
RxD
Figure 2
Pin configuration
3.2
Pin Definitions and Functions
Table 1
Pin
Pin Definition and Functions
Symbol
Function
1
TxD
Transmit Data Input;
internal pull-up to VCC, “low” for “dominant” state.
2
3
GND
Ground
VCC
Transceiver Supply Voltage;
100 nF decoupling capacitor to GND required.
4
5
RxD
Receive Data Output;
“low” in “dominant” state.
Not Receive-only Mode Input1);
NRM
control input for selecting receive-only mode,
internal pull-up, to VCC, “low” for receive-only mode.
6
7
8
CANL
CANH
NEN
CAN Bus Low Level I/O;
“low” in “dominant” state.
CAN Bus High Level I/O;
“high” in “dominant” state.
Not Enable Input1);
internal pull-up to VCC,
“low” to select normal-operation mode or receive-only mode.
1) The designation of pin 8 and pin 5 is different in the TLE7250G and its predecessor, the TLE6250G. The function of pin 8
and pin 5 remains the same.
Data Sheet
5
Rev. 1.0, 2012-03-01
TLE7250G
Functional Description
4
Functional Description
CAN is a serial bus system that connects microcontrollers, sensors and actuators for real-time control applications.
The use of the Control Area Network (abbreviated CAN) within road vehicles is described by the international
standard ISO 11898. According to the 7-layer OSI reference model, the physical layer of a CAN bus system
specifies the data transmission from one CAN node to all other available CAN nodes within the network. The
physical layer specification of a CAN bus system includes all electrical and mechanical specifications of a CAN
network. The CAN transceiver is part of the physical layer specification. Several different physical layer definitions
of CAN networks have been developed in recent years. The TLE7250G is a High Speed CAN transceiver without
a dedicated wake-up function. High Speed CAN transceivers without a wake-up function are defined by the
international standard ISO 11898-2.
4.1
High Speed CAN Physical Layer
TxD
VCC
t
VCC
=
High Speed CAN
power supply
TxD
RxD
=
Input from the
VCC
CAN_H
CAN_L
microcontroller
Output to the
=
microcontroller
Voltage on the CANH
input/output
Voltage on the CANL
input/output
CANH =
CANL =
VDIFF
=
Differential voltage
between CANH and CANL
V
DIFF = VCANH – VCANL
t
t
t
VDIFF
“dominant“
“recessive“
V
DIFF = ISO level “dominant“
DIFF = ISO level “recessive“
V
RxD
VCC
Figure 3
High Speed CAN bus signals and logic signals
Data Sheet
6
Rev. 1.0, 2012-03-01
TLE7250G
Functional Description
The TLE7250G is a High Speed CAN transceiver, operating as an interface between the CAN controller and the
physical bus medium. An HS CAN network is a two-wire, differential network, which allows data transmission rates
up to 1 Mbps. The characteristics of an HS CAN network are the two signal states on the CAN bus: “dominant”
and “recessive” (see Figure 3).
The CANH and CANL pins are the interface to the CAN bus and both pins operate as an input and output. The
RxD and TxD pins are the interface to the microcontroller. The TxD pin is the serial data input from the CAN
controller, and the RxD pin is the serial data output to the CAN controller. As shown in Figure 1, the HS CAN
transceiver TLE7250G includes a receiver and a transmitter unit, allowing the transceiver to send data to the bus
medium and monitor the data from the bus medium at the same time. The HS CAN transceiver TLE7250G
converts the serial data stream which is available on the transmit data input TxD, into a differential output signal
on the CAN bus, provided by the CANH and CANL pins. The receiver stage of the TLE7250G monitors the data
on the CAN bus and converts them to a serial, single-ended signal on the RxD output pin. A logical “low” signal
on the TxD pin creates a “dominant” signal on the CAN bus, followed by a logical “low” signal on the RxD pin (see
Figure 3). The feature of broadcasting data to the CAN bus and listening to the data traffic on the CAN bus
simultaneously is essential to support the bit-to-bit arbitration within CAN networks.
The voltage levels for HS CAN transceivers are defined by the ISO 11898-2 and the ISO 11898-5 standards.
Whether a data bit is “dominant” or “recessive” depends on the voltage difference between the CANH and CANL
pins:
VDIFF = VCANH - VCANL.
In comparison with other differential network protocols, the differential signal on a CAN network can only be larger
than or equal to 0 V. To transmit a “dominant” signal to the CAN bus, the differential signal VDIFF is larger than or
equal to 1.5 V. To receive a “recessive” signal from the CAN bus, the differential VDIFF is smaller than or equal to
0.5 V.
“Partially-supplied” High Speed CAN networks are those where the CAN bus nodes of one common network have
different power supply conditions. Some nodes are connected to the common power supply, while other nodes
are disconnected from the power supply and in power-down state. Regardless of whether the CAN bus subscriber
is supplied or not, each subscriber connected to the common bus media must not interfere with the
communication. The TLE7250G is designed to support “partially-supplied” networks. In power-down state, the
receiver input resistors are switched off and the transceiver input has a high resistance.
Data Sheet
7
Rev. 1.0, 2012-03-01
TLE7250G
Functional Description
4.2
Modes of Operation
Three different modes of operation are available on the TLE7250G. Each mode has specific characteristics in
terms of quiescent current or data transmission. NEN and NRM are used as the digital input pins for mode
selection. Figure 4 illustrates the different mode changes depending on the status of the NEN and NRM pins. After
supplying VCC to the HS CAN transceiver, the TLE7250G starts in stand-by mode. The internal pull-up resistors
set the TLE7250G to stand-by mode by default. If the microcontroller is up and running, the TLE7250G can switch
to any mode of operation within the time period for mode change tMode
.
start–up
supply VCC
VCC < VCC(UV)
undervoltage
detection on VCC
power-down
stand-by mode
NRM = 1
NEN = 0
NRM = 0
NEN = 0
NEN = 1
NRM = 0/1
NRM = 0/1
NEN = 1
NRM = 0/1
NEN = 1
NRM = 0
NEN = 0
normal-operating
mode
receive-only mode
NEN = 0
NRM = 1
NEN = 0
NRM = 0
NRM = 1
NEN = 0
Figure 4
Modes of operation
The TLE7250G has 3 major modes of operation:
•
•
•
Stand-by mode
Normal-operating mode
Receive-only mode
Table 2
Mode
Modes of Operation
NRM NEN
Bus Bias Comments
Normal-operating “high” “low”
mode
VCC/2
The transmitter is active.
The receiver is active.
Stand-by
“low”
or
“high”
GND
The transmitter is disabled.
The receiver is disabled.
“high”
Receive-only
“low”
“low”
VCC/2
The transmitter is disabled.
The receiver is active.
VCC off
“low”
or
“low”
or
floating
The transmitter is disabled.
The receiver is disabled.
“high” “high”
Data Sheet
8
Rev. 1.0, 2012-03-01
TLE7250G
Functional Description
4.3
Normal-operating Mode
In the normal-operating mode, the HS CAN transceiver TLE7250G sends the serial data stream on the TxD pin to
the CAN bus. The data on the CAN bus is displayed at the RxD pin simultaneously. In the normal-operating mode,
all functions of the TLE7250G are active:
•
•
•
•
The transmitter is active and drives data from the TxD to the CAN bus.
The receiver is active and provides the data from the CAN bus to the RxD pin.
The bus biasing is set to VCC/2.
The undervoltage monitoring at the power supply VCC is active.
To enter the normal-operating mode, set the pin NRM to logical “high” and the pin NEN to logical “low” (see
Table 2 or Figure 4). Both pins, the NEN pin and the NRM pin have internal pull-up resistors to the power-supply
VCC.
4.4
Receive-only Mode
The receive-only mode can be used to test the connection of the bus medium. The TLE7250G can still receive
data form the bus, but the transmitter is disabled and hence, no data can be sent to the CAN bus. All other
functions are active:
•
•
•
•
The transmitter is disabled and data, which is available on the TxD pin, is blocked and not sent to the CAN bus.
The receiver is active and provides the data from the CAN bus to the RxD output pin.
The bus biasing is set to VCC/2.
The undervoltage monitoring on the power supply VCC is active.
To enter the receive-only mode, set the pin NRM to logical “low” and the pin NEN to logical “low” (see Table 2 or
Figure 4). In case the receive-only mode is not used, the NRM pin can be left open.
4.5
Stand-by Mode
The stand-by mode is an idle mode of the TLE7250G with optimized power consumption. In the stand-by mode,
the TLE7250G can not send or receive any data. The transmitter and the receiver are disabled. Both CAN bus
pins, CANH and CANL are connected to GND via the input resistors.
•
•
•
•
The transmitter is disabled.
The receiver is disabled.
The input resistors of the receiver unit are connected to GND.
The undervoltage monitoring at the power supply VCC is active.
To enter the stand-by mode, set the pin NEN to logical “high”, the logical state of the NRM pin has no influence on
the mode selection (see Table 2 or Figure 4). Both pins, the NEN and the NRM pin have an internal pull-up
resistor to the power-supply VCC. If the stand-by mode is not used in the application, the NEN pin needs to be
connected to GND.
In case the NRM pin is set to logical “low” in the stand-by mode, the internal pull-up resistor causes an additional
quiescent current from VCC to GND, therefore it is recommended to set the NRM pin to logical “high” in stand-by
mode or leave the pin open, if the receive-only mode is not used in the application.
4.6
Power-down state
The power-down state means that the TLE7250G is not supplied. In power-down state, the differential input
resistors of the receiver stage are switched off. The CANH and CANL bus interface of the TLE7250G acts as high-
impedance input with a very small leakage current. The high-ohmic input does not influence the “recessive” level
of the CAN network and allows an optimized EME performance of the entire CAN network.
Data Sheet
9
Rev. 1.0, 2012-03-01
TLE7250G
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 damage. If the device heats up due to a continuous short
on the CANH or CANL, the internal overtemperature protection switches off the transmitter.
5.2
Unconnected Logic Pins
All logic input pins have an internal pull-up resistor to VCC. In case the VCC supply is activated and the logical pins
are open or floating, the TLE7250G enters into the stand-by mode by default. In stand-by mode, the transmitter of
the TLE7250G is disabled, the bus bias is connected to GND and the HS CAN TLE7250G transceiver does not
influence the data on the CAN bus.
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 can have its root cause in a locked-up
microcontroller or in a short on the printed circuit board for example. In normal-operating mode, a logical “low”
signal on the TxD pin for the time t > tTxD enables the TxD time-out and the TLE7250G disables the transmitter
(see Figure 5). 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 5
TxD Time-out function
Figure 5 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 TLE7250G requires a signal change on the TxD input pin from logical “low” to logical “high”.
5.4
Undervoltage Detection
The HS CAN Transceiver TLE7250G is provided with undervoltage detection at the power supply VCC. In case of
an undervoltage event on VCC, the undervoltage detection changes the operating mode of TLE7250G to the stand-
by mode, regardless of the logical signal on the NEN and NRM pins (see Figure 6). If the transceiver TLE7250G
recovers from the undervoltage condition, the operating mode is restored to the programmed mode by the logical
pins NEN and NRM.
Data Sheet
10
Rev. 1.0, 2012-03-01
TLE7250G
Fail-safe Functions
supply voltage VCC
hysteresis
VCC(UV,H)
power-down reset
level VCC(UV)
delay time undervoltage
recovery
tDelay(UV)
NEN = 0
NRM = 1
normal-operating
mode
stand-by
mode
normal-operating mode1)
1) Assuming the logical signals on the pin NEN and on the pin NRM keep its values during the
undervoltage event. In this case NEN remains “low“ and NRM remains “high“.
Figure 6
Undervoltage detection on VCC
5.5
Overtemperature Protection
Overtemperature event
TJSD
Cool Down
(shut-down temperature)
TJ
ΔT
switch-on transmitter
t
t
CANH
CANL
TxD
RxD
t
t
Figure 7
Overtemperature protection
The TLE7250G has an integrated overtemperature detection circuit to protect the device against thermal
overstress of the transmitter. In case of an overtemperature condition, the temperature sensor will disable the
transmitter (see Figure 1). After the device cools down, the transmitter is activated again (see Figure 7).
A hysteresis is implemented within the temperature sensor.
Data Sheet
11
Rev. 1.0, 2012-03-01
TLE7250G
General Product Characteristics
6
General Product Characteristics
6.1
Absolute Maximum Ratings
Table 3
Absolute Maximum Ratings of Voltage, Current and Temperatures1)
All voltages with respect to ground; positive current flowing into the pin;
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Remarks
Min.
Max.
Voltage
6.1.1 Supply voltage
VCC
-0.3
-40
6.0
40
V
V
–
–
6.1.2 CANH DC voltage against VCANH
GND
6.1.3 CANL DC voltage against VCANL
-40
-40
-0.3
-0.3
40
V
V
V
V
–
GND
6.1.4 Differential voltage
between CANH and CANL
VCAN diff
40
6.1.5 Logic voltage logic input
pins NEN, NRM, TxD
VMax_In
6.0
VCC
–
–
6.1.6 Logic voltage at logic output VMax_Out
RxD
Temperature
6.1.7 Junction temperature
6.1.8 Storage temperature
ESD Immunity
Tj
-40
150
150
°C
°C
–
–
TS
- 55
6.1.9 ESD immunity at CANH,
CANL against GND
VESD_HBM_CAN -8
8
kV
kV
V
HBM
(100pF via 1.5 kΩ)2)
6.1.10 ESD immunity at all other VESD_HBM_All -2
2
HBM
(100pF via 1.5 kΩ)2)
CDM3)
pins
6.1.11 ESD immunity to GND
(all pins)
VESD_CDM
-750
750
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, Charged Device Model “CDM” according to EIA/JESD22-C101 or ESDA STM5.3.1
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 associated electrical characteristics table.
Data Sheet
12
Rev. 1.0, 2012-03-01
TLE7250G
General Product Characteristics
6.2
Functional Range
Table 4
Pos.
Operating Range
Parameter
Symbol
Limit Values
Max.
Unit
Conditions
Min.
4.75
-40
Supply Voltage
6.2.1
Transceiver supply voltage
5.25
150
V
–
VCC
TJ
Thermal Parameter
1)
6.2.2
Junction temperature
°C
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 associated electrical characteristics table.
6.3
Thermal Characteristics
Note:This thermal data was generated in accordance with JEDEC JESD51 standards. For more information,
please visit www.jedec.org.
Table 5
Pos.
Thermal Resistance1)
Parameter
Symbol
Limit Values
Unit
Remarks
Min.
Typ.
Max.
Thermal Resistance
2)
6.3.1 Junction to ambient1)
RthJA
–
130
–
K/W
Thermal Shut-down Junction Temperature
6.3.2 Thermal shut-down
temperature.
TJSD
150
–
175
10
200
–
°C
K
–
–
6.3.3 Thermal shut-down
hysteresis
∆T
1) Not subject to production test, specified by design
2) The RthJA value specified, is according to Jedec JESD51-2,-7 at natural convection on the FR4 2s2p board; The product
(TLE7250G) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70 µm Cu, 2 x 35 µm Cu).
Data Sheet
13
Rev. 1.0, 2012-03-01
TLE7250G
Electrical Characteristics
7
Electrical Characteristics
7.1
Functional Device Characteristics
Table 6
Electrical Characteristics
4.75 V < VCC < 5.25 V; RL = 60 Ω; -40 °C < Tj < +150 °C; all voltages with respect to ground; positive current
flowing into the pin; unless otherwise specified.
Pos. Parameter
Symbol Limit Values
Unit Remarks
Min.
Typ.
Max.
Current Consumption
7.1.1 Current consumption
ICC
–
–
–
–
2
6
mA “recessive” state;
VTxD = VCC
7.1.2 Current consumption
7.1.3 Current consumption
7.1.4 Current consumption
ICC
35
2
60
6
mA “dominant” state;
VTxD = “low”
ICC(ROM)
ICC(STB)
mA receive-only mode;
NEN = NRM = ”low”
7
15
μA stand-by mode;
TxD = NRM = NEN = “high”
Supply Resets
7.1.5 VCC undervoltage monitor
VCC(UV)
1.3
–
3.2
4.3
–
V
–
1)
7.1.6 VCC undervoltage monitor
VCC(UV,H)
400
mV
hysteresis
7.1.7 VCC undervoltage delay time
Receiver Output: RxD
tDelay(UV)
–
–
50
μs
1) (see Figure 6)
7.1.8 “High” level output current
IRD,H
IRD,L
–
2
-4
4
-2
–
mA VRxD = VCC - 0.4 V,
DIFF < 0.5 V
mA VRxD = 0.4 V,
DIFF > 0.9 V
V
7.1.9 “Low” level output current
V
Transmission Input: TxD
7.1.10 “High” level input voltage
threshold
VTD,H
VTD,L
–
0.5 × 0.7 ×
V
V
“recessive” state
“dominant” state
VCC
VCC
7.1.11 “Low” level input voltage
threshold
0.3 × 0.4 ×
–
VCC
10
–
VCC
7.1.12 TxD pull-up resistance
7.1.13 TxD input hysteresis
RTD
25
50
–
kΩ
mV
ms
–
1)
VHYS(TxD)
tTxD
800
–
7.1.14 TxD permanent “dominant”
disable time
0.3
1.0
–
Not Enable Input NEN
7.1.15 “High” level input voltage
threshold
VNEN,H
VNEN,L
–
0.5 × 0.7 ×
V
V
stand-by mode
VCC
VCC
7.1.16 “Low” level input voltage
threshold
0.3 × 0.4 ×
–
normal-operating mode
VCC
10
–
VCC
7.1.17 NEN pull-up resistance
7.1.18 NEN input hysteresis
RNEN
25
50
–
kΩ
–
1)
VHYS(NEN)
200
mV
Data Sheet
14
Rev. 1.0, 2012-03-01
TLE7250G
Electrical Characteristics
Table 6
Electrical Characteristics (cont’d)
4.75 V < VCC < 5.25 V; RL = 60 Ω; -40 °C < Tj < +150 °C; all voltages with respect to ground; positive current
flowing into the pin; unless otherwise specified.
Pos. Parameter
Symbol Limit Values
Unit Remarks
Min.
Typ.
Max.
Receive-only Input NRM
7.1.19 “High” level input voltage
threshold
VNRM,H
VNRM,L
–
0.5 × 0.7 ×
V
V
normal-operating mode
VCC
VCC
7.1.20 “Low” level input voltage
threshold
0.3 × 0.4 ×
–
receive-only mode
VCC
10
–
VCC
7.1.21 NRM pull-up resistance
7.1.22 NRM input hysteresis
Bus Receiver
RNRM
25
50
–
kΩ
–
1)
VNRM(Hys)
200
mV
–
7.1.23 Differential receiver threshold VDIFF,(D)
–
0.75
0.65
–
0.9
–
V
normal-operating mode
normal-operating mode
1) normal-operating mode
1) normal-operating mode
“dominant”
7.1.24 Differential receiver threshold VDIFF,(R)
0.5
0.9
-1.0
“recessive”
7.1.25 Differential receiver input
range “dominant”
Vdiff,rdN
Vdiff,drN
CMR
5.0
0.5
V
V
7.1.26 Differential receiver input
range “recessive”
–
7.1.27 Common mode range
-12
–
–
12
–
V
VCC = 5 V
1)
7.1.28 Differential receiver hysteresis Vdiff,hys
7.1.29 CANH, CANL input resistance Ri
100
20
40
–
mV
10
20
-3
30
60
3
kΩ “recessive” state
kΩ “recessive” state
7.1.30 Differential input resistance
Rdiff
7.1.31 Input resistance deviation
between CANH and CANL
ΔRi
%
1) “recessive” state
1)
7.1.32 Input capacitance CANH,
CANL versus GND
CIN
–
–
20
10
40
20
pF
pF
V
= VCC
= VCC
,
,
TxD
TxD
1)
7.1.33 Differential input capacitance CInDiff
V
Bus Transmitter
7.1.34 CANL/CANH “recessive”
output voltage
VCANL/H
2.0
2.5
–
3.0
50
V
VTxD = VCC
no load
,
7.1.35 CANH, CANL “recessive”
output voltage difference
Vdiff
-500
0.5
mV VTxD = VCC
,
no load
7.1.36 CANL “dominant” output
voltage
VCANL
VCANH
Vdiff
–
2.25
4.5
3.0
V
V
V
VTxD = 0 V,
50 Ω < RL < 65 Ω
7.1.37 CANH “dominant” output
voltage
2.75
1.5
–
VTxD = 0 V,
50 Ω < RL < 65 Ω
7.1.38 CANH, CANL “dominant”
output voltage difference
Vdiff = VCANH - VCANL
–
VTxD = 0 V,
50 Ω < RL < 65 Ω
7.1.39 Driver symmetry
VSYM
4.5
40
–
5.5
V
VTxD = 0 V, VCC = 5 V,
50 Ω < RL < 65 Ω
VSYM = VCANH + VCANL
7.1.40 CANL short-circuit current
ICANLsc
80
100
mA VTxD = 0 V, VCC = 5 V, t < tTxD
VCANLshort = 18 V
,
Data Sheet
15
Rev. 1.0, 2012-03-01
TLE7250G
Electrical Characteristics
Table 6
Electrical Characteristics (cont’d)
4.75 V < VCC < 5.25 V; RL = 60 Ω; -40 °C < Tj < +150 °C; all voltages with respect to ground; positive current
flowing into the pin; unless otherwise specified.
Pos. Parameter
Symbol Limit Values
Unit Remarks
Min.
Typ.
Max.
7.1.41 CANH short-circuit current
ICANHsc
-100
-80
-40
mA VTxD = 0 V, VCC = 5 V, t < tTxD,
V
V
CANHshort = 0 V
7.1.42 Leakage current CANH
7.1.43 Leakage current CANL
ICANH,lk
ICANL,lk
-5
-5
0
0
5
5
μA
μA
CC = 0 V, VCANH = VCANL
,
,
0 V < VCANH, < 5 V
V
CC = 0 V, VCANH = VCANL
0 V < VCANL < 5 V
Dynamic CAN Transceiver Characteristics
7.1.44 Propagation delay
TxD to RxD “low”
(“recessive” to “dominant”)
7.1.45 Propagation delay
TxD to RxD “high” (“dominant”
td(L),TR
30
30
170
200
255
255
ns
ns
CL = 100 pF,
V
CC = 5 V, CRxD = 15 pF
td(H),TR
CL = 100 pF,
CC = 5 V, CRxD = 15 pF
V
to “recessive”)
7.1.46 Propagation delay
td(L),T
td(H),T
td(L),R
td(H),R
tMode
–
–
–
–
–
90
90
80
110
–
–
ns
ns
ns
ns
μs
1) CL = 100 pF,
CC = 5 V, CRxD = 15 pF
1) CL = 100 pF,
CC = 5 V, CRxD = 15 pF
1) CL = 100 pF,
CC = 5 V, CRxD = 15 pF
1) CL = 100 pF,
TxD “low” to bus “dominant”
7.1.47 Propagation delay
TxD “high” to bus “recessive”
7.1.48 Propagation delay
bus “dominant” to RxD “low”
7.1.49 Propagation delay
bus “recessive” to RxD “high”
7.1.50 Time for mode change
V
–
V
–
V
–
V
CC = 5 V, CRxD = 15 pF
1)
10
1) Not subject to production test, specified by design
Data Sheet
16
Rev. 1.0, 2012-03-01
TLE7250G
Electrical Characteristics
7.2
Diagrams
5
1
8
NRM
TxD
7
6
CANH
CANL
NEN
CL
RL
4
3
RxD
CRxD
VCC
GND
2
100 nF
Figure 8
Simplified test circuit
VTxD
VCC
GND
t
t
td(L),T
td(H),T
VDIFF
0.9V
0.5V
td(H),R
td(L),R
td(L),TR
td(H),TR
VRxD
VCC
0.7 x VCC
0.3 x VCC
GND
t
Figure 9
Timing diagram for dynamic characteristics
Data Sheet
17
Rev. 1.0, 2012-03-01
TLE7250G
Application Information
8
Application Information
8.1
ESD Immunity According to IEC61000-4-2
Tests for ESD immunity according to IEC61000-4-2, “Gun test” (150 pF, 330 Ω), have been performed. The results
and test conditions are available in a separate test report.
Table 7
ESD Immunity according to IEC61000-4-2
Test performed
Result
Unit
Remarks
Electrostatic discharge voltage at CANH and
CANL pins against GND
≥ +8
kV
1)Positive pulse
Electrostatic discharge voltage at CANH and
CANL pins against GND
≤ -8
kV
1)Negative pulse
1) ESD susceptibility “ESD GUN” according to Gift / ICT paper: “EMC Evaluation of CAN Transceivers, version 03/02/ IEC
TS 62228“, section 4.3. (DIN EN 61000-4-2)
Tested by external test house (IBEE Zwickau, EMC test report no.: 03-01-12).
Data Sheet
18
Rev. 1.0, 2012-03-01
TLE7250G
Application Information
8.2
Application Example
VBAT
I
Q
22 uF
TLE42744DV50
GND
CANH CANL
100 nF
10 uF
3
VCC
100 nF
TLE7250G
VCC
8
1
4
5
Out
NEN
TxD
7
6
CANH
Out
Microcontroller
e.g. XC22xx
In
RxD
CANL
Optional:
Common Mode Choke
Out
NRM
GND
GND
2
Example ECU Design:
Transceiver with stand-by mode and receive-only mode
I
Q
22 uF
TLE42744DV50
GND
100 nF
10 uF
3
VCC
100 nF
GND
TLE7250G
VCC
8
1
4
5
NEN
TxD
7
6
CANH
Out
Microcontroller
e.g. XC22xx
In
RxD
CANL
Optional:
Common Mode Choke
NRM
GND
N.C.
GND
2
Example ECU Design:
Transceiver in normal-operating mode only
Figure 10 Simplified application for the TLE7250G
8.3
Further Application Information
•
•
Please contact us for information regarding the FMEA pin.
For further information you may visit http://www.infineon.com/transceiver
Data Sheet
19
Rev. 1.0, 2012-03-01
TLE7250G
Package Outlines
9
Package Outlines
0.35 x 45˚
1)
4-0.2
C
1.27
B
0.1
0.25
0.64
+0.1 2)
0.41
0.2
-0.06
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 11 PG-DSO-8 (Plastic dual small outline PG-DSO-8-16)
Green Product (RoHS-compliant)
The device has been designed as a green product to meet the world-wide customer requirements for environment-
friendly products and to be compliant with government regulations. 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:
Dimensions in mm
http://www.infineon.com/packages.
Data Sheet
20
Rev. 1.0, 2012-03-01
TLE7250G
Revision History
10
Revision History
Revision
Date
Changes
Data Sheet TLE7250G Rev. 1.0
1.0
2012-03-01
Data Sheet
21
Rev. 1.0, 2012-03-01
Edition 2012-03-01
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
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and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
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