Datasheet TLE 6254-2G Datasheet (INFINEON)

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Fault Tolerant Differential CAN-Transceiver TLE 6254-2G

Final Data Sheet

1 Features

• Data transmission rate up to 125 kBaud

• Very low current consumption in stand-by and sleep
operation mode

• 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

• Full support of dual 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

P-DSO-14-13

Type Ordering Code Package

TLE 6254-2G Q67006-A9549 P-DSO-14-13 (SMD)

2 Description

The CAN-Transceiver TLE 6254-2G 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.

Data Sheet Version 1.4 1 2003-07-22

3 Pin Configuration

(top view)

Final Data TLE 6254-2G

Pin Configuration (top view)

P-DSO-14-13

INH

TxD

NERR

NSTB

ENT RTL

WK

1

2

3

4

5

6

7

Figure 1

Table 1 Pin Definitions and Functions
Pin No. Symbol Function

14

13

12

11

10

9

8

V

S

GND

CANLRxD

CANH

V

CC

RTH

1INHInhibit output; for controlling an external voltage regulator
2TxDTransmit data input; integrated pull up, LOW: bus becomes

dominant, HIGH: bus becomes recessive

3RxDReceive data output; integrated pull up, LOW: bus is

dominant, HIGH: bus is recessive

4NERRError flag output; integrated pull up, LOW: bus error (in

normal operation mode), further functions see Table 2

5NSTBNot stand-by input; digital control inputs to select operation

modes, see Figure 4

6ENTEnable transfer input; digital control input to select

operation modes, see Figure 4

Data Sheet Version 1.4 2 2003-07-22

Table 1 Pin Definitions and Functions (cont’d)
Pin No. Symbol Function

Final Data TLE 6254-2G

Pin Configuration (top view)

7WKWake-Up input; if level of V

changes the device

WAKE

indicates a wake-up from low power mode by switching the
RxD and INT outputs LOW and switching the INH output
HIGH (in sleep mode), see Table 2

8RTHTermination resistor output; connect to CANH bus-line via

termination resistor (500 Ω <

R

< 16 kΩ), controlled by

RTH

internal failure management

9RTLTermination resistor output; connect to CANL bus-line via

termination resistor (500 Ω <

R

< 16 kΩ), controlled by

RTL

internal failure and mode management

10

V

CC

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

V

S

Battery voltage supply input; block to GND directly at the

IC with ceramic capacitor

Data Sheet Version 1.4 3 2003-07-22

4 Functional Block Diagram

Final Data TLE 6254-2G

Functional Block Diagram

RTL

CANH

CANL

RTH

GND

Vcc

10 14

9

11

12

8

Output

Stage

Vs

Driver

Temp.-

Protection

Mode Control

(normal, stand-by, sleep)

Time Out

Vcc

1

INH

7

WK

6

ENT

5

NSTB

2

TxD

V

CC

Bus Failure

Filter

7.2

1.8

-2.8

3.2

Multiplexer

Wake-Up

Vbat Fail Flag

V

4

NERR

CC

Vcc

3

RxD

Failure Management

13

7.2

Receiver

Figure 2 Block Diagram

Data Sheet Version 1.4 4 2003-07-22

Final Data TLE 6254-2G

Circuit Description

5 Circuit Description

The CAN transceiver TLE 6254-2G 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 TLE 6254-2G 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 u nshielded
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

Controller 1

RxD

1

Transceiver 1

TxD

1

RxD

Transceiver 2

Local Area 2

Controller 2

2

TxD

2

Bus Line

AES02410

Figure 3 CAN Network Example

Data Sheet Version 1.4 5 2003-07-22

Final Data TLE 6254-2G

Circuit Description

NSTB 0

Power Down

Normal Mode

NSTB

11

ENT 0 ENT 1

INHENT

high

RxD-Only

NSTB

10

NSTB
ENT

INHENT

high

0
1

ENT 1

ENT
t < t

h(min)

NSTB
V

CC

NSTB

NSTB
ENT

0

Start Up

Power Up

1
1

0 or
low

1

NSTB
ENT

or

V

CC

V

Stand-By

bat

NSTB

00

0
0

low

INHENT

high

Wake-Up via

CAN-bus

or
WK-Input;
t > t

WU(min)

or

t > t

WK(min)

Sleep Mode

NSTB

01

Go to

INHENT

float.

ENT = 1
t > t

h(min)

Sleep Mode

NSTB

00

INHENT

float.

Figure 4 State Diagram

Data Sheet Version 1.4 6 2003-07-22

Final Data TLE 6254-2G

Circuit Description

5.1 Operation Modes, Wake-Up

In addition to the normal operation mode, the TLE 6254-2G offers a receive-only mode
as well as two low power operation modes to save power during periods that do not

V

require communication on the CAN bus: sleep mode,
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

t

. After the minimum hold time t

h(min)

can be actively selected. Otherwise the TLE 6254-2G will automatically fall in sleep
mode because of the not powered microcontroller.

stand-by mode (see Table 2

Bat

the sleep mode

h(min)

On a wake-up request either by bus line activities or via the WAKE input, the transceiver
is automatically set in

V

-stand-by mode. Now the voltage regulator (5 V supply) is

Bat

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

V

is provided, the wake-up request is monitored on both, the

CC

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 V

stand-by mode corresponds to the sleep mode, but a voltage regulator

Bat

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 (
to

V

stand-by mode.

Bat

V

pin is supplied) automatically switches the TLE 6254-2G

BAT

In the receive-only mode data on the CAN-bus are transvered 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 indica te a battery fail condition. When entering the
normal mode the

V

-flag is reset and the NERR output becomes high again. This

bat

feature is useful e.g. when changing the ECU and therefore a presetting routine of the
microcontroller has to be started.

Data Sheet Version 1.4 7 2003-07-22

Final Data TLE 6254-2G

Circuit Description

If either of the supply voltages drops below the specified limits, the transceiver is
automatically switched to

.

Table 2 Truth Table of the CAN Transceiver
NSTB ENT Mode INH NERR RxD RTL

V

stand-by mode or power down mode respectively.

Bat

00

0 0 sleep mode

0 1 go to sleep

1 0 Receive-only

V

stand-by

BAT

mode

1)

command

mode

V

bat

2)

floating switched

active LOW wake-up interrupt if

V

is present

CC

becomes
floating

V

bat

active LOW

V

power-on

BAT

3)

flag

HIGH = recessive
receive data;
LOW = dominant

switched
to V

to

V

switched
to

V

switched
to

V

receive data

1 1 normal mode V

bat

active LOW
bus error flag

HIGH = recessive
receive data;

switched

V

to
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 a s VCC drops, without affecting internal functions.

3)

V

power-on flag will be reseted when entering normal operation mode.

BAT

BAT

BAT

BAT

CC

CC

5.2 Bus Failure Management

The TLE 6254-2G 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. – 2.8 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 Version 1.4 8 2003-07-22

Final Data TLE 6254-2G

Circuit Description

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 (according to ISO 11519-2)
failure # failure description

1 CANL line interrupted
2 CANH line interrupted
3 CANL line shorted to
3a CANL line shorted to V

V

BAT
CC

4 CANH line shorted to GND:
5 CANL line shorted to GND:
6 CANH line shorted to
6a CANH line shorted to V

V

BAT
CC

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
TLE 6254-2G is still able to receive CAN-bus messages.

Data Sheet Version 1.4 9 2003-07-22

5.3 Application Hints

Table 4 Not Needed Pins
Pin Symbol Recommendation

INH Leave open
NERR Leave open

Final Data TLE 6254-2G

Circuit Description

NSTB Connect to
ENT Connect to V
WAKE Connect to V

V

CC
CC

, if not possible connect to GND: increases current

BAT

consumption by approx. 5 µA

The transceiver will stay in a present operating mode until a suitable condition disposes
a state change. If not otherwise defined all conditions are AND-combined. The signals

V

and V

CC

show if the supply is available (e.g. VCC = 1: VCC voltage is present). If at

BAT

minimum one supply voltage is switched on, the start-up procedure begins (not figured).
After a delay time the device changes to normal operating or stand-by mode.

Data Sheet Version 1.4 10 2003-07-22

Final Data TLE 6254-2G

Absolute Maximum Ratings

6 Absolute Maximum Ratings

Parameter Symbol Limit Values Unit Notes

min. max.

Input voltage at
Logic supply voltage
Input voltage at TxD, RxD, NERR,

V

BAT

V

CC

V
V
V

NSTB and ENT
Input voltage at CANH and CANL
Transient voltage at CANH and CANL

V
V

Input voltage at WAKE V
Output current at WAKE
Input voltage at INH
Input voltage at RTH and RTL
Junction temperature
Storage temperature
Electrostatic discharge voltage

at pin CANH, CANL, RTH, RTL,V
Electrostatic discharge voltage

BAT

I
V
V
T
T
V

V

at any other pin

S
CC
IN

BUS
BUS
WK

WK

INH

RTH/L
j
stg

esd

esd

– 0.3 40 V –
– 0.3 6 V –
– 0.3 V

+ 0.3 V –

CC

– 40 40 V –
– 150 100 V

1)

–40 V–
–5 mA–
– 0.3 V

+ 0.3 V –

BAT

– 0.3 40 V –
– 40 160 °C–
– 55 155 °C–
– 4 4 kV

2)

– 2 2 kV

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 Version 1.4 11 2003-07-22

Final Data TLE 6254-2G

Operating Range

7 Operating Range

Parameter Symbol Limit Values Unit Notes

min. max.

Logic input voltage
Battery input voltage
Termination resistances at RTL and

RTH
Junction temperature

Thermal Resistance

Junction ambient R

Thermal Shutdown

Junction temperature T

Wake Input Voltage

Wake input voltage

V

CC

V

S

R

RTL/H

T

j

thja

jSH

V

WK

4.75 5.25 V –
627 V–

0.5 16 kΩ –

– 40 150 °C–

–120 K/W–

160 200 °C

10°C
hyst.

– 0.3 27 V –

Note: In the operating range, the functions given in the circuit description are fulfilled.

Data Sheet Version 1.4 12 2003-07-22

Final Data TLE 6254-2G

Static Characteristics

8 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.

V

Supplies

CC

, V

S

Supply current I

CC

– 5.0 8.0 mA recessive;

– 6.5 10 mA dominant;

Supply current

I

CC

–3.55.0mA

(Receive-only mode)
Supply current

(

V

stand-by)

BAT

Supply current

I

CC

I

S

I

S

–2550µA VCC = 5 V;
–4060µA
–3560µA VCC = 0 V;

(sleep operation mode)
Battery voltage for

V

S

1.5 2.5 3.5 V VCC stand-by mode

setting power-on flag

Battery voltage low time

t

pw(on)

10 µs Receive-only mode

for setting power-on flag

Receiver Output R×D and Error Detection Output NERR

TxD =

V

CC

TxD = 0 V; no load

V

= 12 V

S

V

= 12 V;

S

guaranteed by
design

HIGH level output
voltage (pin NERR)

HIGH level output
voltage (pin RxD)

LOW level output voltage

Data Sheet Version 1.4 13 2003-07-22

V

V

V

OH

OH

OL

V

CC

–

V

CC

V I0 = – 100 µA

– 0.9

V

CC

–

V

CC

V I0 = – 250 µA

– 0.9
0–0.9VI0 = 1.25 mA

Final Data TLE 6254-2G

Static Characteristics

8 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.

Transmission Input T×D, Not Stand-By NSTB and Enable Transfer ENT

HIGH level input voltage

LOW level input voltage

HIGH level input current
(pins NSTB and ENT)

LOW level input current
(pins NSTB and ENT)

HIGH level input current
(pin TxD)

LOW level input current
(pin TxD)

Forced battery voltage
stand-by mode (fail safe)

Wake-up Input WAKE

V

V

I

I

I

I

V

IH

IL

IH

IL

IH

IL

CC

0.7 ×

V

CC

– 0.3 – 0.3 ×

– V

+ 0.3

V

CC

CC

V–

V–

–3060µA Vi = 4 V

0.7 6 – µA Vi = 1 V

– 150 – 40 – 10 µA Vi = 4 V

– 600 – 200 – 40 µA Vi = 1 V

2.75 – 4.5 V –

Input current
Wake-up threshold

I

IL

V

WK(min)

–3 –2 –1 µA–

2.2 3.2 3.9 V V

NSTB

= 0 V

voltage

Inhibit Output INH

HIGH level voltage drop

V

= VS – V

∆

H

INH

Leakage current

∆V

I

INH,lk

H

–0.30.8VI

= – 0.18 mA;

INH

– 5.0 – 5.0 µA sleep operation

mode;

V

= 0 V

INH

Data Sheet Version 1.4 14 2003-07-22

Final Data TLE 6254-2G

Static Characteristics

8 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.

Bus Lines CANL, CANH

Differential receiver
recessive-to-dominant
threshold voltage

Differential receiver
dominant-to-recessive
threshold voltage

CANH recessive output
voltage

CANL recessive output
voltage

CANH dominant output
voltage

CANL dominant output
voltage

CANH output current

V

dRxD(rd)

V

dRxD(dr)

V

CANH,r

V

CANL,r

V

CANH,d

V

CANL,d

I

CANH

–2.8 –2.5 –2.2 V VCC=5.0V

–3.2 –2.9 –2.6 V VCC=5.0V

0.10 0.15 0.30 V TxD = VCC;

R

< 4 kΩ

RTH

V

CC

– 0.2

V

CC

– 1.4

––VTxD =

R

V

CC

– 1.0

V

CC

VTxD = 0 V;

I

CANH

V

< 4 kΩ

RTL

= – 40 mA

CC

;

–1.01.4VTxD = 0 V;

I

= 40 mA

CANL

– 110 – 80 – 50 mA V

CANH

= 0 V;

TxD = 0 V

– 5 0 5 µA sleep operation

mode;

V

CANH

= 12 V

CANL output current

I

CANL

50 80 110 mA V

CANL

= 5 V;

TxD = 0 V

– 5 0 5 µA sleep operation

mode;

V
V

Data Sheet Version 1.4 15 2003-07-22

= 0 V;

CANL

= 12 V

S

Final Data TLE 6254-2G

Static Characteristics

8 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.

Voltage detection
threshold for short-circuit
to battery voltage on
CANH and CANL

Voltage detection
threshold for short-circuit
to battery voltage on
CANH

CANH wake-up voltage
threshold

CANL wake-up voltage
threshold

Wake-up voltage
threshold hysteresis

CANH single-ended
receiver threshold

CANL single-ended
receiver threshold

V

det(th)

V

det(th)

V

CANH,wu

V

CANL,wu

∆

V

wu

V

CANH

V

CANL

6.5 7.3 8.0 V –

V

BAT

– 2.5

V

BAT

–2

V

BAT

–1

V stand-by/

sleep operation
mode

1.2 1.9 2.7 V –

2.2 3.1 3.9 V –

0.2 – – V ∆Vwu = V

V

CANH,wu

CANL,wu

–

1.6 2.1 2.6 V failure cases 3, 5
and 7

2.4 2.9 3.4 V failure case 6 and
6a

CANL leakage current

CANH leakage current I

Data Sheet Version 1.4 16 2003-07-22

I

CANL,lk

CANH,lk

– 5 0 5 µA VCC=0V;

V

=0V;

S

V
T

=12V;

CANL

<85°C

j

– 5 0 5 µA VCC=0V;

V

=0V;

S

V
T

=5V;

CANH

<85°C

j

Final Data TLE 6254-2G

Static Characteristics

8 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.

Termination Outputs RTL, RTH

RTL to

V

switch-on

CC

resistance
RTL output voltage

RTL to BAT switch series
resistance

RTH to ground switch-on
resistance

RTH output voltage

RTH pull-down current

RTL pull-up current

RTH leakage current

R

RTL

V

oRTL

R

oRTL

R

RTH

V

oRTH

I

RTH,pd

I

RTL,pu

I

RTH,lk

–2095Ω Io =–10 mA

V

CC

– 1.0
51528kΩ V

V

CC

– 0.7

I

–V|

| < 1 mA; VCC

o

stand-by mode

stand-by or

BAT

sleep operation
mode

–2095Ω Io = 10 mA

–0.71.0VIo = 1 mA;

low power mode

40 75 120 µA failure cases 6 and

6a

– 120 – 75 – 40 µA failure cases 3, 3a,

5 and 7

– 5 0 5 µA VCC=0V;

V

=0V;

S

V

=5V;

RTH

T

<85°C

j

RTL leakage current I

Data Sheet Version 1.4 17 2003-07-22

RTL,lk

– 5 0 5 µA VCC=0V;

V

=0V;

S

V

=12V;

RTL

T

<85°C

j

Final Data TLE 6254-2G

Dynamic Characteristics

9 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 Unit Notes

min. typ. max.

CANH and CANL bus
output transition time
recessive-to-dominant

CANH and CANL bus
output transition time
dominant-to-recessive

Minimum dominant time
for wake-up via CANL or
CANH

Minimum wake-up time on
pin WAKE

Failure cases 3, 6
detection time

Failure case 6a detection
time

Failure cases 5, 6, 6a, 7
recovery time

t

rd

t

dr

t

wu(min)

t

WK(min)

t

fail

0.6 1.2 2.1 µs 10% to 90%;

C

= 10 nF;

1

C

= 0; R1 = 100 Ω

2

0.3 0.6 1.3 µs 10% to 90%;

C

= 1 nF; C2 = 0;

1

R

= 100 Ω

1

15 25 38 µs stand-by modes;

V

= 12 V

S

15 25 50 µs Low power modes;

V

= 12 V

S

30 45 80 µs–

24.86ms–

30 45 80 µs–

Failure cases 3 recovery

250 500 750 µs–

time
Failure cases 5, 7

1.02.04.0ms–

detection time
Failure cases 5 detection

time
Failure cases 6, 6a, 7

detection time
Failure cases 5, 6, 6a, 7

recovery time

Data Sheet Version 1.4 18 2003-07-22

0.4 1.0 2.4 ms stand-by modes;

V

= 12 V

S

0.8 4.0 8.0 ms stand-by modes;

V

= 12 V

S

0.4 1.0 2.4 ms stand-by modes;

V

= 12 V

S

Final Data TLE 6254-2G

Dynamic Characteristics

9 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 Symbol Limit Values Unit Notes

min. typ. max.

Propagation delay
TxD-to-RxD LOW
(recessive to dominant)

Propagation delay
TxD-to-RxD HIGH
(dominant to recessive)

t

PD(L)

t

PD(H)

–1.52.1µs C1 = 100 pF;

C

= 0; R1 = 100 Ω;

2

no failures and bus
failure cases 1, 2,
3a, 4

–1.72.4µs

C

= C2 = 3.3 nF;

1

R

= 100 Ω; no bus

1

failure and failure
cases 1, 2, 3a, 4

–1.82.5µs

C

100 pF; C2 = 0;

1

R

= 100 Ω; bus

1

failure cases 3, 5,
6, 6a, 7

–2.02.6µs

C

= C2 = 3.3 nF;

1

R

=100 Ω; bus

1

failure cases 3, 5,
6, 6a, 7

–1.52.0µs C1 = 100 pF;

C

= 0; R1 =100 Ω;

2

no failures and bus
failure cases 1, 2,
3a, 4

–2.53.5µs

C

= C2 = 3.3 nF;

1

R

= 100 Ω; no bus

1

failure and failure
cases 1, 2, 3a, 4

Data Sheet Version 1.4 19 2003-07-22

Final Data TLE 6254-2G

Dynamic Characteristics

9 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 Symbol Limit Values Unit Notes

min. typ. max.

Propagation delay
TxD-to-RxD HIGH
(dominant to recessive)

Minimum hold time to go
sleep command

Edge-count difference
(falling edge) between
CANH and CANL for
failure cases 1, 2, 3a, 4
detection NERR becomes
LOW

Edge-count difference
(rising edge) between
CANH and CANL for
failure cases 1, 2, 3a, 4
recovery

t

PD(H)

t

h(min)

n

e

–1.02.1µs C1 100 pF; C2 = 0;

R

= 100 Ω; bus

1

failure cases 3, 5,
6, 6a, 7

–1.52.6µs

C

= C2 = 3.3 nF;

1

R

= 100 Ω; bus

1

failure cases 3, 5,
6, 6a, 7

15 25 50 µs–

–4–––

–2–––

TxD permanent dominant

t

TxD

1.32.03.5ms–

disable time

Data Sheet Version 1.4 20 2003-07-22

10 Test and Application

+ 5 V

73654 21

TLE 6254-2G

CAN Tr ansceiver

RTH RTL CANH CANL GND

V

CC

R

1

RxDNERR TxDENTWAKE NSTB INH

V

BAT

141312111098

R

1

Final Data TLE 6254-2G

Test and Application

20 pF

+ 12 V

CC

CAN Bus Substitute 1

R

1

C

K

Schaffner

Generator

CAN Bus Substitute 2

2

C

11

R

= 100

1

C

1,2

C

R

1

C

K

K

Ω

= 10 nF
= 1 nF

AES02423

Figure 5 Test Circuits

For isolated testing the CAN Bus Substitute 1 is connected to the CAN Transceiver (see

C

Figure 5). The capacitors
termination resistors

R

RTH

and R

simulate the cable. Allowed minimum values of the

1-2

are 500 Ω. Electromagnetic interference on the bus

RTL

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 Version 1.4 21 2003-07-22

V

bat

CAN
bus

choke

*)

Final Data TLE 6254-2G

Test and Application

TLE 6254-2G

R

RTH

R

RTL

100 nF

10 k

11

12

14

8

9

CANH

CANL

RTH

RTL

V

S

NSTB

NERR

RxD

TxD

ENT

3

µP

2

with

On-Chip

CAN-

6

5

module

e.g.

4

C50C,

C164C

7

WK

10

GND

V

CC

GND

Ω

1

INH

100 nF

INH

V

CC

e.g.
TLE 4263
TLE 4299
TLE 4271
TLE 4276

V

S

GND

22 µF

*) optional, according to car manufacturers requirements

22 µF100 nF

Figure 6 Application Circuit

Data Sheet Version 1.4 22 2003-07-22

11 Package Outlines

P-DSO-14-13

(Plastic Dual Small Outline Package)

Final Data TLE 6254-2G

Package Outlines

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”

SMD = Surface Mounted Device

GPS09330

Dimensions in mm

Data Sheet Version 1.4 23 2003-07-22

Edition 2003-07-22

Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany

© Infineon Technologies AG 2003.

All Rights Reserved.

Attention please!

The information herein is given to describe
certain components and shall not be consid­ered as warranted characteristics.

Terms of delivery and rights to technical
change reserved.

We hereby disclaim any and all warranties,
including but not limited to warranties of
non-infringement, regarding circuits, descrip­tions and charts stated herein.

Infineon Technologies is an approved CECC
manufacturer.

Final Data TLE 6254-2G

Information

For further information on technology, deliv­ery terms and conditions and prices please
contact your nearest Infineon Technologies
Office in Germany or our Infineon Technolo­gies Representatives worldwide (see ad­dress list).

Warnings

Due to technical requirements components
may contain dangerous substances. For in­formation on the types in question please
contact your nearest Infineon Technologies
Office.

Infineon Technologies Components may only
be used in life-support devices or systems
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.

Data Sheet Version 1.4 24 2003-07-22