TLE6254-3G Data Sheet (466 KB, EN)

Data Sheet, Rev. 2.1, Aug. 2007
TLE6254-3G
Fault Tolerant Low Speed CANTransceiver
Automotive Power
Edition 2007-08-09
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2005 Infineon Technologies AG
All Rights Reserved.
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Fault Tolerant Low Speed CAN-Transceiver
TLE6254-3G
Features
•
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•
•
•
•
•
•
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•
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Data transmission rate up to 125 kBaud
Low current consumption in stand-by and sleep
operation mode, including BUS wake-up
Implemented receive-only mode
Optimized EMC behavior
Wake-up input pin, dual edge sensitive
Battery fail flag
Extended bus failure management to guarantee safe
operation during all bus line failure events
Support of failure conditions
Fully wake-up capability during all bus line failures conditions
Supports one-wire transmission mode with ground offset voltages up to 1.5 V
Prevention from bus occupation in case of CAN controller failure
Thermal protection
Bus line error protection against transients in automotive environment
Green Product (RoHS compliant)
AEC Qualified
Description
The CAN-Transceiver TLE6254-3G works as the interface between the CAN protocol
controller and the physical CAN bus-lines.
It is optimized for low-speed data transmission (up to 125 kBaud) in automotive and
industrial applications.
While no data is transferred, the power consumption can be minimized by multiple low
power modes.
In normal operation mode a differential signal is transmitted/received. When bus wiring
failures are detected the device automatically switches in a dedicated single-wire mode
to maintain communication.
Type
Package
TLE6254-3G
PG-DSO-14
Data Sheet
3
Rev. 2.1, 2007-08-09
TLE6254-3G
T L E6254 -3G
IN H
1
14
VS
T xD
2
13
GN D
R xD
3
12
C AN L
N ER R
4
11
C AN H
N ST B
5
10
VCC
EN T
6
9
RTL
WK
7
8
RTH
AEP03323N.VSD
Figure 1
Pin Configuration PG-DSO-14 (top view)
Table 1
Pin Definitions and Functions
Pin No.
Symbol
Function
1
INH
Inhibit output; for controlling an external voltage regulator
2
TxD
Transmit data input; integrated pull-up, LOW: bus
becomes dominant, HIGH: bus becomes recessive
3
RxD
Receive data output; integrated pull-up, LOW: bus is
dominant, HIGH: bus is recessive
4
NERR
Error flag output; integrated pull-up, LOW: bus error (in
normal operation mode), further functions see Table 2
5
NSTB
Not stand-by input; digital control input to select operation
modes, see Figure 4
6
ENT
Enable transfer input; digital control input to select
operation modes, see Figure 4
7
WK
Wake-Up input; if level of VWAKE changes the device
indicates a wake-up from low power mode by switching the
RxD outputs LOW and switching the INH output HIGH (in
sleep mode), see Table 2
Data Sheet
4
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 1
Pin Definitions and Functions (cont’d)
Pin No.
Symbol
Function
8
RTH
Termination resistor output; connected to CANH bus-line
via termination resistor (500 Ω < RRTH < 16 kΩ), controlled by
internal failure management
9
RTL
Termination resistor output; connected to CANL bus-line
via termination resistor (500 Ω < RRTL < 16 kΩ), controlled by
internal failure and mode management
10
VCC
Supply voltage input; +5 V, block to GND directly at the IC
with ceramic capacitor
11
CANH
CAN bus line H; HIGH: dominant state
12
CANL
CAN bus line L; LOW: dominant state
13
GND
Ground
14
VS
Battery voltage supply input; block to GND directly at the
IC with ceramic capacitor
Data Sheet
5
Rev. 2.1, 2007-08-09
TLE6254-3G
Functional Block Diagram
VCC
VS
14
10
1
RTL
CANH
CANL
9
7
Mode Control
(normal, stand-by, sleep)
11
Driver
Output
Stage
12
6
5
Time Out
WK
ENT
NSTB
TempProtection
2
RTH
INH
8
TxD
VCC
Bus Failure
Wake-Up
VBat
7.2
Fail Flag
4
NERR
-2.8
Filter
3.2
VCC
Multiplexer
Failure Management
1.8
3
RxD
7.2
GND
13
Receiver
AEA03314.VSD
Figure 2
Data Sheet
Block Diagram
6
Rev. 2.1, 2007-08-09
TLE6254-3G
Circuit Description
The CAN transceiver TLE6254-3G works as the interface between the CAN protocol
controller and the physical CAN bus-lines. Figure 3 shows the principle configuration of
a CAN network.
The TLE6254-3G is optimized for low-speed data transmission (up to 125 kBaud) in
automotive and industrial applications.
In normal operation mode a differential signal is transmitted/received. When bus wiring
failures are detected the device automatically switches in a dedicated single-wire mode
to maintain communication.
While no data is transferred, the power consumption can be minimized by multiple low
power operation modes. Further a receive-only mode is implemented.
To reduce radiated electromagnetic emission (EME) the dynamic slopes of the CANL
and CANH signals are both limited and symmetric. This allows the use of an unshielded
twisted or parallel pair of wires for the bus. During single-wire transmission (one of the
bus lines is affected by a bus line failure) the EME performance of the system is
degraded from the differential mode.
In case the transmission data input TxD is permanently dominant, both, the CANH and
CANL transmitting stage are disabled after a certain delay time. This is necessary to
prevent the bus from being blocked by a defective protocol unit or short to GND at the
TxD input.
Local Area 1
Local Area 2
Controller 1
Controller 2
RxD 1
TxD 1
RxD 2
Transceiver 2
Transceiver 1
Bus Line
Figure 3
Data Sheet
TxD 2
AES02410
CAN Network Example
7
Rev. 2.1, 2007-08-09
TLE6254-3G
Start Up
Power Up
Power Down
Normal Mode
NSTB
ENT
INH
1
1
High
ENT
0
ENT
0
INH
0
High
1
NSTB
0 or
VCC
Low
NSTB
1
NSTB
0
ENT
or
0
VCC
Low
VBat Stand-By
NSTB
ENT
INH
0
0
High
NSTB
ENT
1
1
1
RxD-Only
NSTB
NSTB
ENT
NSTB
0
ENT
1
ENT
Wake-Up via
CAN-Bus
or
WK-Input;
t > tWU(min)
or
t > tWK(min)
1
0
ENT
t < th(min)
Go to
Sleep Mode
NSTB
0
ENT
1
ENT = 1
t > th(min)
INH
High
Sleep Mode
NSTB
ENT
INH
0
0
Float.
AEA03317.VSD
Figure 4
Data Sheet
State Diagram
8
Rev. 2.1, 2007-08-09
TLE6254-3G
Operation Modes, Wake-Up
In addition to the normal operation mode, the TLE6254-3G offers a receive-only mode
as well as two low power operation modes to save power during periods that do not
require communication on the CAN bus: sleep mode, VBAT stand-by mode (see Table 2
and Figure 4). Via the control input pins NSTB and ENT the operation modes are
selected by the microcontroller. In the low power modes neither receiving nor
transmitting of messages is possible.
In sleep operation mode the lowest power consumption is achieved. In order to minimize
the overall current consumption of the ECU (electronic control unit) the external voltage
regulator (5 V supply) is deactivated by the INH output in this mode, when connected.
For that purpose the INH output is switched to high impedance. In parallel the CANL line
is pulled-up to the battery supply voltage via the RTL output and the pull-up paths at the
input pins TxD and RxD are disabled from the internal supply.
To enter the sleep operation mode the transition mode “Go-to-Sleep” has to be selected
(Figure 4) for a minimum time th(min). After the minimum hold time th(min) the sleep mode
can be actively selected. Otherwise the TLE6254-3G will automatically fall in sleep mode
because of the not powered microcontroller.
On a wake-up request either by bus line activities or via the WAKE input, the transceiver
is automatically set in VBAT stand-by mode. Now the voltage regulator (5 V supply) is
enabled by the INH output. The WAKE input reacts to both, transition from high to low
voltage level as well as the other way round. To avoid faulty wake-ups due to transients
on the bus lines or the WAKE input circuitry respectively, a certain filter time is
implemented. As soon as VCC is provided, the wake-up request is monitored on both, the
NERR and RxD outputs, by setting them low. Upon this the microcontroller can activate
the normal operation mode by setting the control inputs NSTB and ENT high.
The VBAT stand-by mode corresponds to the sleep mode, but a voltage regulator
connected to the INH output will remain active. Wake-up requests via the WAKE pin or
the bus lines are immediately reported to the microcontroller by setting RxD and NERR
low. A power-on condition (VBAT pin is supplied) automatically switches the TLE6254-3G
to VBAT stand-by mode.
In the receive-only mode data on the CAN-bus are transferred to the RxD output, but
both output stages, CANH as well as CANL are disabled. This means that data at the
TxD input are not transmitted to the CAN bus. This mode is useful in combination to a
dedicated network-management software that allows separate diagnosis for all nodes.
A wake-up request in the receive-only mode is only reported at the RxD-output. The
NERR output in this mode is used to indicate a battery fail condition. When entering the
normal mode the VBAT-flag is reset and the NERR output becomes high again. This
feature is useful e.g. when changing the ECU and therefore a presetting routine of the
microcontroller has to be started.
Data Sheet
9
Rev. 2.1, 2007-08-09
TLE6254-3G
If either of the supply voltages drops below the specified limits, the transceiver is
automatically switched to VBAT stand-by mode or power down mode respectively.
Table 2
Truth Table of the CAN Transceiver
NSTB
ENT
Mode
INH
0
0
VBAT stand-by VBAT
mode1)
NERR
RxD
RTL
active LOW wake-up interrupt if
VCC is present
switched
to VBAT
0
0
sleep mode2)
floating
switched
to VBAT
0
1
go to sleep
command
becomes
floating
switched
to VBAT
1
0
Receive-only
mode
VBAT
1
1
normal mode VBAT
active LOW
HIGH = recessive switched
VBAT power-on receive data;
to VCC
flag3)
LOW = dominant
receive data
active LOW
bus error flag
HIGH = recessive switched
receive data;
to VCC
LOW = dominant
receive data
1) Wake-up interrupts are released when entering normal operation mode.
2) If go to sleep command was used before, ENT may turn LOW as VCC drops, without affecting internal
functions.
3) VBAT power-on flag will be reseted when entering normal operation mode.
Bus Failure Management
The TLE6254-3G detects the bus failures as described in Table 3, and automatically
switches to a dedicated CANH or CANL single wire mode to maintain data transmission
if necessary. Therefore, the device is equipped with one differential receiver and 4 single
ended receivers, two for each bus line. To avoid false triggering by external RF
influences the single wire modes are only activated after a certain delay time. As soon
as the bus failure disappears the transceiver switches back to differential mode after
another time delay. Bus failures are indicated in the normal operation mode by setting
the NERR output low.
The differential receiver threshold is typ. -3.1 V. This ensures correct reception in the
normal operation mode as well as in the failure cases 1, 2 and 4 with a noise margin as
high as possible. For these failures, further failure management is not necessary.
Detection of the failure cases 1, 2, 3a and 4 is only possible when the bus is dominant.
Nevertheless, they are reported on the NERR output until transmission of the next CAN
word on the bus begins.
Data Sheet
10
Rev. 2.1, 2007-08-09
TLE6254-3G
When one of the bus failures 3, 5, 6, 6a and 7 is detected, the defective bus wire is
disabled by switching off the affected bus termination and the respective output stage. A
wake-up from sleep mode via the bus is possible either via a dominant CANH or CANL
line. This ensures that a wake-up is possible even if one of the failures 1 to 7 occurs.
Table 3
CAN Bus-line Failures
Failure #
Failure Description
1
CANL line interrupted
2
CANH line interrupted
3
CANL line shorted to VBAT
3a
CANL line shorted to VCC
4
CANH line shorted to GND
5
CANL line shorted to GND
6
CANH line shorted to VBAT
6a
CANH line shorted to VCC
7
CANL line shorted to CANH line
A current limiting circuit protects the CAN transceiver output stages from damage by
short-circuit to positive and negative battery voltages.
The CANH and CANL pins are protected against electrical transients which may occur
in the severe conditions of automotive environments.
The transmitter output stages generate the majority of the power dissipation. Therefore
they are disabled if the junction temperature exceeds the maximum value. This
effectively reduces power dissipation, and hence will lead to a lower chip temperature,
while other parts of the IC can remain operating. In temperature shut-down condition the
TLE6254-3G is still able to receive CAN-bus messages.
Data Sheet
11
Rev. 2.1, 2007-08-09
TLE6254-3G
Application Hints
Table 4
Not Needed Pins
Pin Symbol
Recommendation
INH
Leave open
NERR
Leave open
NSTB
Connect to VCC
ENT
Connect to VCC
WAKE
Connect to VBAT,
connect to GND: increases current consumption by approx. 5 µA
Data Sheet
12
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 5
Absolute Maximum Ratings
Parameter
Symbol
Limit Values
Min.
VS
VCC
Input voltage at TxD, RxD, NERR, NSTB VIN
Unit
Notes
Max.
Input voltage at VBAT
-0.3
40
V
–
Logic supply voltage VCC
-0.3
6
V
–
-0.3
VCC +
V
–
0.3
and ENT
Input voltage at CANH and CANL
Transient voltage at CANH and CANL
Input voltage at WAKE
Input voltage at INH
VBUS
VBUS
VWK
VINH
-40
40
V
–
-150
100
V
1)
-40
40
V
–
-0.3
VBAT + V
–
0.3
Input voltage at RTH and RTL
Junction temperature
Storage temperature
Electrostatic discharge voltage at pin
CANH, CANL, RTH, RTL, VBAT
Electrostatic discharge voltage at any
other pin
VRTH/L
Tj
Tstg
Vesd
-0.3
40
V
–
-40
160
°C
–
-55
155
°C
–
-4
4
kV
2)
Vesd
-2
2
kV
2)
1) See ISO 7637
2) Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 kΩ resistor.
Note: Stresses above those listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Data Sheet
13
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 6
Operating Range
Parameter
Logic input voltage
Battery input voltage
Termination resistances at RTL and
RTH
Junction temperature
Symbol
Limit Values
Unit
Notes
5.25
V
–
27
V
–
0.5
16
kΩ
–
Tj
-40
150
°C
–
Rthja
–
120
K/W
–
TjSH
160
200
°C
10 °C
hyst.
VWK
-0.3
27
V
–
Min.
Max.
VCC
VS
RRTL/H
4.75
5.7
Thermal Resistance
Junction ambient
Thermal Shutdown
Junction temperature
Wake Input Voltage
Wake input voltage
Note: In the operating range, the functions given in the circuit description are fulfilled.
Data Sheet
14
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 7
Static Characteristics
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Unit Notes
Min.
Typ.
Max.
–
3.5
10.0
mA
recessive;
TxD = VCC
–
6.5
10
mA
dominant;
TxD = 0 V; no load
Supplies VCC, VS
Supply current
ICC
Supply current
(Receive-only mode)
ICC
–
3.5
10.0
mA
–
Supply current
(VBAT stand-by)
ICC
IS
–
25
55
µA
–
30
50
µA
VCC = 5 V;
VS = 12 V
Supply current
(VBAT stand-by)
ICC + IS
55
85
µA
Supply current
(sleep operation mode)
IS
–
50
70
µA
Supply current
(sleep operation mode)
IS
–
50
65
µA
Battery voltage for
setting power-on flag
VS
-
1
3.5
V
VCC = 5 V;
VS = 12 V
Tj = 25 °C
VCC = 0 V;
VS = 12 V
VCC = 0 V;
VS = 12 V
Tj = 25 °C
Receiver Output RxD and Error Detection Output NERR
HIGH level output
voltage (pin NERR)
VOH
HIGH level output
voltage (pin RxD)
VOH
–
VCC
V
I0 = -100 µA
–
VCC
V
I0 = -250 µA
–
0.9
V
I0 = 1.25 mA
0.9
LOW level output voltage VOL
Data Sheet
VCC VCC 0.9
0
15
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 7
Static Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Min.
Typ.
Unit Notes
Max.
Transmission Input TxD, not Stand-By NSTB and Enable Transfer ENT
HIGH level input voltage VIH
0.7 ×
–
VCC
LOW level input voltage
VIL
-0.3
VCC + V
–
0.3
–
0.3 ×
V
–
VCC
HIGH level input current
(pins NSTB and ENT)
IIH
–
20
80
µA
Vi = 4 V
LOW level input current
(pins NSTB and ENT)
IIL
0.7
6
–
µA
Vi = 1 V
HIGH level input current
(pin TxD)
IIH
-150
-30
-5
µA
Vi = 4 V
LOW level input current
(pin TxD)
IIL
-600
-300
-40
µA
Vi = 1 V
2.75
–
4.5
V
–
IIL
VWK(min)
-3
-2
-1
µA
2.2
3.0
3.9
V
VWK = 0 V
VNSTB = 0 V
HIGH level voltage drop
∆VH = VS - VINH
∆VH
–
0.1
0.8
V
IINH = -0.18 mA
Leakage current
IINH,lk
-5.0
–
5.0
µA
sleep operation
mode;
VINH = 0 V
Forced battery voltage
VCC
stand-by mode (fail safe)
Wake-up Input WAKE
Input current
Wake-up threshold
voltage
Inhibit Output INH
Data Sheet
16
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 7
Static Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Min.
Typ.
Max.
Unit Notes
Bus Lines CANL, CANH
Differential receiver
recessive-to-dominant
threshold voltage
VdRxD(rd) -3.6
-3.1
-2.6
V
VCC = 5.0 V
Differential receiver
dominant-to-recessive
threshold voltage
VdRxD(dr) -3.6
-3.1
-2.6
V
VCC = 5.0 V
CANH recessive output
voltage
VCANH,r
0.10
0.15
0.30
V
TxD = VCC;
RRTH < 4 kΩ
CANL recessive output
voltage
VCANL,r
VCC -
–
–
V
TxD = VCC;
RRTL < 4 kΩ
CANH dominant output
voltage
VCANH,d
VCC -
VCC -
VCC
V
1.4
1.0
TxD = 0 V;
VCC = 5V;
RL = 100Ω
CANL dominant output
voltage
VCANL,d
–
1.0
1.4
V
TxD = 0 V;
VCC = 5V;
RL = 100Ω
CANH output current
ICANH
-110
-80
-50
mA
VCANH = 0 V;
0.2
TxD = 0 V
CANL output current
Data Sheet
ICANL
-5
0
5
µA
sleep operation
mode;
VCANH = 12 V
50
80
110
mA
VCANL = 5 V;
TxD = 0 V
-5
0
5
µA
sleep operation
mode;
VCANL = 0 V;
VS = 12 V
17
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 7
Static Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Unit Notes
Min.
Typ.
Max.
6.5
7.3
8.0
V
–
CANH wake-up voltage
threshold
VCANH,wu 1.1
2.2
2.5
V
–
CANL wake-up voltage
threshold
VCANL,wu 2.5
3.1
3.9
V
–
CANH single-ended
receiver threshold
VCANH
1.5
1.8
2.3
V
failure cases 3, 5
and 7; VCC = 5 V
CANL single-ended
receiver threshold
VCANL
2.8
3.1
3.5
V
failure case 6 and
6a; VCC = 5 V
Difference of wake-up
threshold
Vdiff,wu
0.8
CANL leakage current
ICANL,lk
-5
0
5
µA
CANH leakage current
ICANH,lk
-5
0
5
µA
Voltage detection
Vdet(th)
threshold for short-circuit
to battery voltage on
CANH and CANL
Data Sheet
V
18
VCC = 0 V; VS = 0 V;
VCANL = 12 V;
Tj < 85 °C
VCC = 0 V; VS = 0 V;
VCANH = 5 V;
Tj < 85 °C
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 7
Static Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Unit Notes
Min.
Typ.
Max.
–
20
95
Ω
Io = -10 mA
RTL to BAT switch series RoRTL
resistance
8
15
30
kΩ
VBAT stand-by or
RTH to ground switch-on RRTH
resistance
–
40
95
Ω
Io = 10 mA
Termination Outputs RTL, RTH
RTL to VCC switch-on
resistance
RRTL
sleep operation
mode
RTH output voltage
VoRTH
–
0.7
1.0
V
Io = 1 mA;
low power mode
RTH pull-down current
IRTH,pd
40
75
120
µA
failure cases 6 and
6a
RTL pull-up current
IRTL,pu
-120
-75
-40
µA
failure cases 3, 5
and 7
RTH leakage current
IRTH,lk
-5
0
5
µA
RTL leakage current
IRTL,lk
-10
0
10
µA
VCC = 0 V;
VS = 0 V;
VRTH = 5 V;
Tj < 85 °C
VCC = 0 V;
VS = 0 V;
VRTL = 12 V;
Tj < 85 °C
Data Sheet
19
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 8
Dynamic Characteristics
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Symbol
Limit Values
Min.
Typ.
Max.
Unit Notes
CANH and CANL bus
output transition time
recessive-to-dominant
trd
0.6
1.2
2.4
µs
10% to 90%;
C1 = 10 nF;
C2 = 0; R1 = 100 Ω
CANH and CANL bus
output transition time
dominant-to-recessive
tdr
0.3
0.6
1.3
µs
10% to 90%;
C1 = 1 nF; C2 = 0;
R1 = 100 Ω
Minimum dominant time
for wake-up via CANL or
CANH
twu(min)
8
25
40
µs
stand-by modes;
VS = 12 V
Minimum wake-up time on tWK(min)
pin WAKE
8
25
50
µs
Low power modes;
VS = 12 V
20
40
80
µs
Normal Mode
Failure case 6a
detection time
2
4
8
ms
Normal Mode
Failure cases 5, 7
detection time
1.0
2.0
4.0
ms
Normal Mode
Failure cases 5, 6, 6a, 7
recovery time
20
40
80
µs
Normal Mode
Failure cases 3
recovery time
250
500
750
µs
Normal Mode
Failure cases 5, 7
detection time
0.4
1.0
2.4
ms
stand-by modes;
VS = 12 V
Failure cases 5, 7
recovery time
0.4
1.0
2.4
ms
stand-by modes;
VS = 12 V
Failure cases 6, 6a
detection time
0.8
4.0
8.0
ms
stand-by modes;
VS = 12 V
Failure cases 6, 6a
recovery time
0.4
1.0
2.4
ms
stand-by modes;
VS = 12 V
Failure cases 3, 6
detection time
Data Sheet
tfail
20
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 8
Dynamic Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Propagation delay
TxD-to-RxD LOW
(recessive to dominant)
Symbol
tPD(L)
Limit Values
Min.
Typ.
Max.
–
1.3
2.4
Unit Notes
µs
C1 = 100 pF;
C2 = 0; R1 = 100 Ω;
no failures and bus
failure cases 1, 2,
3a, 4
–
1.5
2.4
µs
C1 = C2 = 3.3 nF;
R1 = 100 Ω; no bus
failure and failure
cases 1, 2, 3a, 4
–
1.6
2.5
µs
C1 = 100 pF; C2 = 0;
R1 = 100 Ω; bus
failure cases 3, 5,
6, 6a
–
1.8
2.6
µs
C1 = C2 = 3.3 nF;
R1 =100 Ω; bus
failure cases 3, 5,
6, 6a
Propagation delay
TxD-to-RxD HIGH
(dominant to recessive)
tPD(H)
–
1.2
2.4
µs
C1 = 100 pF;
C2 = 0; R1 =100 Ω;
no failures and bus
failure cases 1, 2,
3a, 4
–
2.5
3.5
µs
C1 = C2 = 3.3 nF;
R1 = 100 Ω; no bus
failure and failure
cases 1, 2, 3a, 4
Data Sheet
21
Rev. 2.1, 2007-08-09
TLE6254-3G
Table 8
Dynamic Characteristics (cont’d)
4.75 V ≤ VCC ≤ 5.25 V; 6 V ≤ VS ≤ 27 V; normal operation mode; -40 ≤ Tj ≤ +125 °C (unless
otherwise specified). All voltages are defined with respect to ground. Positive current
flowing into the IC.
Parameter
Propagation delay
TxD-to-RxD HIGH
(dominant to recessive)
Symbol
tPD(H)
Limit Values
Min.
Typ.
Max.
–
1.0
2.1
Unit Notes
µs
C1 = 100 pF; C2 = 0;
R1 = 100 Ω; bus
failure cases 3, 5,
6, 6a
–
1.5
2.6
µs
C1 = C2 = 3.3 nF;
R1 = 100 Ω; bus
failure cases 3, 5,
6, 6a
15
30
60
µs
–
Edge-count difference
ne
(falling edge) between
CANH and CANL for
failure cases 1, 2, 3a, 4
detection NERR becomes
LOW
–
4
–
–
normal operating
mode
Edge-count difference
(rising edge) between
CANH and CANL for
failure cases 1, 2, 3a, 4
recovery
–
2
–
–
normal operating
mode
1.3
2.0
3.5
ms
–
Minimum hold time to go
sleep command
TxD permanent dominant
disable time
Data Sheet
th(min)
tTxD
22
Rev. 2.1, 2007-08-09
TLE6254-3G
Test and Application
+5V
3
2
1
WAKE ENT NSTB NERR RxD
7
6
5
4
TxD
INH
TLE6254-3G
TLE 6254-3G
RTH RTL
8
9
20 pF
CAN Transceiver
V CC CANH CANL GND V BAT
10
11
12
13
14
+ 12 V
R1
R1
C1
C2
C1
CAN Bus Substitute 1
R 1 = 100 Ω
C 1,2 = 10 nF
R1
R1
CK
C K = 1 nF
CK
Schaffner
Generator
CAN Bus Substitute 2
Figure 5
AES02423
Test Circuits
For isolated testing the CAN Bus Substitute 1 is connected to the CAN Transceiver (see
Figure 5). The capacitors C1-2 simulate the cable. Allowed minimum values of the
termination resistors RRTH and RRTL are 500 Ω. Electromagnetic interference on the bus
lines is simulated by switching to CAN Bus Substitute 2. The waves of the applied
transients will be in accordance with ISO 7637 part 1, test 1, test pulses 1, 2, 3a and 3b.
Data Sheet
23
Rev. 2.1, 2007-08-09
TLE6254-3G
V Bat
C AN
Bus
C hoke 1 )
T L E6254-3 G
11
12
RRT H
8
9
R RT L 14
100
nF
10 k Ω 7
1
C AN H
RxD
C AN L
TxD
RTH
RTL
VS
WK
IN H
EN T
N ST B
N ER R
VCC
3
µP
w ith On-C hip
C AN -m odule
2
6
5
4
e.g.
C 50C , C 164C
10
100
nF
GN D
GN D
VCC
IN H
E.g .
T LE 4263
T LE 4299
T LE 4271
T LE 4276
VS
+
22 µF
GN D
100 nF
+
22 µF
1) Optional , ac cording to c ar m anufac turers requirem ents
AEA 03307.VSD
Figure 6
Data Sheet
Application Example
24
Rev. 2.1, 2007-08-09
TLE6254-3G
Package Outlines
1.75 MAX.
C
1)
4 -0.2
B
1.27
0.64 ±0.25
0.1
2)
0.41+0.10
-0.06
6±0.2
0.2 M A B 14x
14
0.2 M C
8
1
7
1)
8.75 -0.2
8˚MAX.
0.19 +0.06
0.175 ±0.07
(1.47)
0.35 x 45˚
A
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
GPS01230
Figure 7
PG-DSO-14 (Plastic Dual Small Outline)
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products
and to be compliant with government regulations the device is available as a green
product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable
for Pb-free soldering according to IPC/JEDEC J-STD-020).
You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.
Dimensions in mm
SMD = Surface Mounted Device
Data Sheet
25
Rev. 2.1, 2007-08-09
TLE6254-3G
Revision History
Version
Date
Rev. 2.1
2007-08-08 RoHS-compliant version of the TLE6254-3G
• All pages : Infineon logo updated
• Page 3:
added “AEC qualified” and “RoHS” logo, “Green Product
(RoHS compliant)” and “AEC qualified” statement added to
feature list, package name changed to RoHS compliant
versions, package picture updated, ordering code
removed.
• Page 25:
Update package drawing to GPS01230
Package name changed to RoHS compliant versions,
“Green Product” description added
• added Revision History
• updated Legal Disclaimer
Data Sheet
Changes
26
Rev. 2.1, 2007-08-09