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Data Sheet Version 1.4 1 2003-07-22

Fault Tolerant Differential CAN-Transceiver TLE 6254-2G

Final Data Sheet

P-DSO-14-13

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

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.

Type Ordering Code Package

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

Final Data TLE 6254-2G

Pin Configuration (top view)

Data Sheet Version 1.4 2 2003-07-22

3 Pin Configuration

(top view)

Figure 1

Table 1 Pin Definitions and Functions

Pin No. Symbol Function

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

TxD

NERR

INH

NSTB

CANLRxD

CANH

ENT RTL

RTH

GND

P-DSO-14-13

Data Sheet Version 1.4 3 2003-07-22

Final Data TLE 6254-2G

Pin Configuration (top view)

7WKWake-Up input; if level of VWAKE changes the device

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 < RRTH < 16 kΩ), controlled by

internal fa ilure management

9RTLTermination resistor output; connect 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 VSBattery voltage supply input; block to GND directly at the

IC with ceramic capacitor

Table 1 Pin Definitions and Functions (cont’d)

Pin No. Symbol Function

Final Data TLE 6254-2G

Functional Block Diagram

Data Sheet Version 1.4 4 2003-07-22

4 Functional Block Diagram

Figure 2 Block Diagram

Output

Stage

Mode Control

(normal, stand-by, sleep)

Time Out

Driver

Temp.-

Protection

Bus Failure

Wake-Up

Vbat Fail Flag

Filter

CANH

RTH

CANL

RTL

INH

Vcc

10 14

Failure Management

Multiplexer

Receiver

7.2

3.2

7.2

-2.8

1.8

NSTB

ENT

TxD

NERR

RxD

GND

Vcc

Data Sheet Version 1.4 5 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 sym metric. This allo ws the use of an unsh ielded

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.

Figure 3 CAN Network Example

Controller 1

RxD TxD

Transceiver 1

Local Area 1

Transceiver 2

Local Area 2

Controller 2

Bus Line AES02410

TxD 2

RxD2

Final Data TLE 6254-2G

Circuit Description

Data Sheet Version 1.4 6 2003-07-22

Sleep Mode

NSTB

float.

INHENT

bat

Stand-By

NSTB

high

INHENT

NSTB

high

INHENT

RxD-Only

Start Up

Power Up

NSTB

ENT

ENT 0ENT 1

NSTB

ENT

low

NSTB

0 or

low

NSTB 1

Normal Mode

NSTB

high

INHENT

Go to

Sleep Mode

NSTB

float.

INHENT

NSTB 0

ENT 1

Wake-Up via

CAN-bus

WK-Input;

t > t

WU(min)

t > t

WK(min)

ENT

t < t

h(min)

ENT = 1

t > t

h(min)

NSTB

ENT

Power Down

Figure 4 State Diagram

Data Sheet Version 1.4 7 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

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 TLE 6254-2G 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 sett ing 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 TLE 6254-2G

to VBat stand-by mode.

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 m ode is u sed to ind ica te 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.

Final Data TLE 6254-2G

Circuit Description

Data Sheet Version 1.4 8 2003-07-22

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.

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.

Table 2 Truth Table of the CAN Transceiver

NSTB ENT Mode INH NERR RxD RTL

VBAT stand-by

mode1)

1) Wake-up interrupts are released when entering normal operation mode.

Vbat active LOW wake-up interrupt if

VCC is present switched

to VBAT

0 0 sleep mode2)

2) If go to sleep command was used before, ENT may turn LOW as VCC drops, without affecting internal functions.

floating switched

to VBAT

0 1 go to sleep

command becomes

floating switched

to VBAT

1 0 Receive-only

mode Vbat active LOW

VBAT power-on

flag3)

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

HIGH = recessive

receive data;

LOW = dominant

receive data

switched

to VCC

1 1 normal mode Vbat active LOW

bus error flag HIGH = recessive

receive data;

LOW = dominant

receive data

switched

to VCC

Data Sheet Version 1.4 9 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)

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.

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

Final Data TLE 6254-2G

Circuit Description

Data Sheet Version 1.4 10 2003-07-22

5.3 Application Hints

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

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

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.

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, if not possible connect to GND: increases current

consumption by approx. 5 µA

Data Sheet Version 1.4 11 2003-07-22

Final Data TLE 6254-2G

Absolute Maximum Ratings

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.

6 Absolute Maximum Ratings

Parameter Symbol Limit Values Unit Notes

min. max.

Input voltage at VBAT VS– 0.3 40 V –

Logic supply voltage VCC VCC – 0.3 6 V –

Input voltage at TxD, RxD, NERR,

NSTB and ENT VIN – 0.3 VCC + 0.3 V –

Input voltage at CANH and CANL VBUS – 40 40 V –

Transient voltage at CANH and CANL VBUS – 150 100 V 1)

Input voltage at WAKE VWK –40 V–

Output current at WAKE IWK –5 mA–

Input voltage at INH VINH – 0.3 VBAT + 0.3 V –

Input voltage at RTH and RTL VRTH/L – 0.3 40 V –

Junction temperature Tj– 40 160 °C–

Storage temperature Tstg – 55 155 °C–

Electrostatic discharge voltage

at pin CANH, CANL, RTH, RTL,VBAT

Vesd – 4 4 kV 2)

Electrostatic discharge voltage

at any other pin Vesd – 2 2 kV

1) See ISO 7637

2) Human body model: equivale nt to dischargin g a 100 pF capacitor through a 1.5 kΩ re sistor.

Final Data TLE 6254-2G

Operating Range

Data Sheet Version 1.4 12 2003-07-22

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

7 Operating Range

Parameter Symbol Limit Values Unit Notes

min. max.

Logic input voltage VCC 4.75 5.25 V –

Battery input voltage VS627 V–

Termination resistances at RTL and

RTH RRTL/H 0.5 16 kΩ–

Junction temperature Tj– 40 150 °C–

Thermal Resistance

Junction ambient Rthja –120 K/W–

Thermal Shutdown

Junction temperature TjSH 160 200 °C10°C

hyst.

Wake Input Voltage

Wake input voltage VWK – 0.3 27 V –

Data Sheet Version 1.4 13 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.

Supplies VCC, VS

Supply current ICC – 5.0 8.0 mA recessive;

TxD = VCC

– 6.5 10 mA dominant;

TxD = 0 V; no load

Supply current

(Receive-only mode) ICC –3.55.0mA

Supply current

(VBAT stand-by) ICC –2550µAVCC = 5 V;

VS = 12 V

IS–4060µA

Supply current

(sleep operation mode) IS–3560µAVCC = 0 V;

VS = 12 V;

Battery voltage for

setting power-on flag VS1.5 2.5 3.5 V VCC stand-by mode

guaranteed by

design

Battery voltage low time

for setting power-on flag tpw(on) 10 µs Receive-only mode

Receiver Output R×D and Error Detection Output NERR

HIGH level output

voltage (pin NERR) VOH VCC

– 0.9 –VCC VI0 = – 100 µA

HIGH level output

voltage (pin RxD) VOH VCC

– 0.9 –VCC VI0 = – 250 µA

LOW level output voltage VOL 0–0.9VI0 = 1.25 mA

Final Data TLE 6254-2G

Static Characteristics

Data Sheet Version 1.4 14 2003-07-22

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

HIGH level input voltage VIH 0.7 ×

VCC

–VCC

+ 0.3 V–

LOW level input voltage VIL – 0.3 – 0.3 ×

VCC

V–

HIGH level input current

(pins NSTB and ENT) IIH –3060µAVi = 4 V

LOW level input current

(pins NSTB and ENT) IIL 0.7 6 – µAVi = 1 V

HIGH level input current

(pin TxD) IIH – 150 – 40 – 10 µAVi = 4 V

LOW level input current

(pin TxD) IIL – 600 – 200 – 40 µAVi = 1 V

Forced battery voltage

stand-by mode (fail safe) VCC 2.75 – 4.5 V –

Wake-up Input WAKE

Input current IIL –3 –2 –1 µA–

Wake-up threshold

voltage VWK(min) 2.2 3.2 3.9 V VNSTB = 0 V

Inhibit Output INH

HIGH level voltage drop

∆VH = VS – VINH

∆VH–0.30.8VIINH = – 0.18 mA;

Leakage current IINH,lk – 5.0 – 5.0 µA sleep operation

mode;

VINH = 0 V

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.

Data Sheet Version 1.4 15 2003-07-22

Final Data TLE 6254-2G

Static Characteristics

Bus Lines CANL, CANH

Differential receiver

recessive-to-dominant

threshold voltage

VdRxD(rd) –2.8 –2.5 –2.2 V VCC =5.0V

Differential receiver

dominant-to-recessive

threshold voltage

VdRxD(dr) –3.2 –2.9 –2.6 V VCC =5.0V

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

– 0.2 ––VTxD = VCC;

RRTL < 4 kΩ

CANH dominant output

voltage VCANH,d VCC

– 1.4 VCC

– 1.0 VCC VTxD = 0 V;

ICANH = – 40 mA

CANL dominant output

voltage VCANL,d –1.01.4VTxD = 0 V;

ICANL = 40 mA

CANH output current ICANH – 110 – 80 – 50 mA VCANH = 0 V;

TxD = 0 V

– 5 0 5 µA sleep operation

mode;

VCANH = 12 V

CANL output current ICANL 50 80 110 mA VCANL = 5 V;

TxD = 0 V

– 5 0 5 µA sleep operation

mode;

VCANL = 0 V;

VS = 12 V

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.

Final Data TLE 6254-2G

Static Characteristics

Data Sheet Version 1.4 16 2003-07-22

Voltage detection

threshold for short-circuit

to battery voltage on

CANH and CANL

Vdet(th) 6.5 7.3 8.0 V –

Voltage detection

threshold for short-circuit

to battery voltage on

CANH

Vdet(th) VBAT

– 2.5 VBAT

–2 VBAT

–1 V stand-by/

sleep operation

mode

CANH wake-up voltage

threshold VCANH,wu 1.2 1.9 2.7 V –

CANL wake-up voltage

threshold VCANL,wu 2.2 3.1 3.9 V –

Wake-up voltage

threshold hysteresis ∆Vwu 0.2 – – V ∆Vwu = VCANL,wu –

VCANH,wu

CANH single-ended

receiver threshold VCANH 1.6 2.1 2.6 V failure cases 3, 5

and 7

CANL single-ended

receiver threshold VCANL 2.4 2.9 3.4 V failure case 6 and

CANL leakage current ICANL,lk – 5 0 5 µAVCC =0V;

VS=0V;

VCANL =12V;

Tj<85°C

CANH leakage current ICANH,lk – 5 0 5 µAVCC =0V;

VS=0V;

VCANH =5V;

Tj<85°C

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.

Data Sheet Version 1.4 17 2003-07-22

Final Data TLE 6254-2G

Static Characteristics

Termination Outputs RTL, RTH

RTL to VCC switch-on

resistance RRTL –2095ΩIo =–10 mA

RTL output voltage VoRTL VCC

– 1.0 VCC

– 0.7 –V|

Io| < 1 mA; VCC

stand-by mode

RTL to BAT switch series

resistance RoRTL 51528kΩVBAT stand-by or

sleep operation

mode

RTH to ground switch-on

resistance RRTH –2095ΩIo = 10 mA

RTH output voltage VoRTH –0.71.0VIo = 1 mA;

low power mode

RTH pull-down current IRTH,pd 40 75 120 µA failure cases 6 and

RTL pull-up current IRTL,pu – 120 – 75 – 40 µA failure cases 3, 3a,

5 and 7

RTH leakage current IRTH,lk – 5 0 5 µAVCC =0V;

VS=0V;

VRTH =5V;

Tj<85°C

RTL leakage current IRTL,lk – 5 0 5 µA VCC =0V;

VS=0V;

VRTL =12V;

Tj<85°C

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.

Final Data TLE 6254-2G

Dynamic Characteristics

Data Sheet Version 1.4 18 2003-07-22

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

trd 0.6 1.2 2.1 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) 15 25 38 µs stand-by modes;

VS = 12 V

Minimum wake-up time on

pin WAKE tWK(min) 15 25 50 µs Low power modes;

VS = 12 V

Failure cases 3, 6

detection time tfail 30 45 80 µs–

Failure case 6a detection

time 24.86ms–

Failure cases 5, 6, 6a, 7

recovery time 30 45 80 µs–

Failure cases 3 recovery

time 250 500 750 µs–

Failure cases 5, 7

detection time 1.02.04.0ms–

Failure cases 5 detection

time 0.4 1.0 2.4 ms stand-by modes;

VS = 12 V

Failure cases 6, 6a, 7

detection time 0.8 4.0 8.0 ms stand-by modes;

VS = 12 V

Failure cases 5, 6, 6a, 7

recovery time 0.4 1.0 2.4 ms stand-by modes;

VS = 12 V

Data Sheet Version 1.4 19 2003-07-22

Final Data TLE 6254-2G

Dynamic Characteristics

Propagation delay

TxD-to-RxD LOW

(recessive to dominant)

tPD(L) –1.52.1µsC1 = 100 pF;

C2 = 0; R1 = 100 Ω;

no failures and bus

failure cases 1, 2,

3a, 4

–1.72.4µsC1 = C2 = 3.3 nF;

R1 = 100 Ω; no bus

failure and failure

cases 1, 2, 3a, 4

–1.82.5µsC1 100 pF; C2 = 0;

R1 = 100 Ω; bus

failure cases 3, 5,

6, 6a, 7

–2.02.6µsC1 = C2 = 3.3 nF;

R1 =100 Ω; bus

failure cases 3, 5,

6, 6a, 7

Propagation delay

TxD-to-RxD HIGH

(dominant to recessive)

tPD(H) –1.52.0µsC1 = 100 pF;

C2 = 0; R1 =100 Ω;

no failures and bus

failure cases 1, 2,

3a, 4

–2.53.5µsC1 = C2 = 3.3 nF;

R1 = 100 Ω; no bus

failure and failure

cases 1, 2, 3a, 4

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.

Final Data TLE 6254-2G

Dynamic Characteristics

Data Sheet Version 1.4 20 2003-07-22

Propagation delay

TxD-to-RxD HIGH

(dominant to recessive)

tPD(H) –1.02.1µsC1 100 pF; C2 = 0;

R1 = 100 Ω; bus

failure cases 3, 5,

6, 6a, 7

–1.52.6µsC1 = C2 = 3.3 nF;

R1 = 100 Ω; bus

failure cases 3, 5,

6, 6a, 7

Minimum hold time to go

sleep command th(min) 15 25 50 µs–

Edge-count difference

(falling edge) between

CANH and CANL for

failure cases 1, 2, 3a, 4

detection NERR becomes

LOW

ne–4–––

Edge-count difference

(rising edge) between

CANH and CANL for

failure cases 1, 2, 3a, 4

recovery

–2–––

TxD permanent dominant

disable time tTxD 1.32.03.5ms–

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.

Data Sheet Version 1.4 21 2003-07-22

Final Data TLE 6254-2G

Test and Application

10 Test and Application

Figure 5 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.

RTH RTL CANH CANL GND

BAT

RxDNERR TxDENTWAKE NSTB INH

TLE 6254-2G

CAN Tr ansceiver

141312111098

73654 21

20 pF

CAN Bus Substitute 1

Schaffner

Generator

1,2

= 100

Ω

= 10 nF

= 1 nF

CAN Bus Substitute 2

+ 5 V

AES02423

+ 12 V

Final Data TLE 6254-2G

Test and Application

Data Sheet Version 1.4 22 2003-07-22

Figure 6 Application Circuit

GND

CANH

CANL

RTH

RTL

CAN

bus

TLE 6254-2G

GND

µP

with

On-Chip

CAN-

module

NERR

TxD

ENT

RxD

NSTB

10 k

Ω

100 nF

GND

e.g.

C50C,

C164C

e.g.

TLE 4263

TLE 4299

TLE 4271

TLE 4276

bat

22 µF100 nF

22 µF

RTH

RTL

INH

*) optional, according to car manufacturers requirements

choke

Data Sheet Version 1.4 23 2003-07-22

Final Data TLE 6254-2G

Package Outlines

11 Package Outlines

P-DSO-14-13

(Plastic Dual Small Outline Package)

GPS09330

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our

Data Book “Package Information” Dimensions in mm

SMD = Surface Mounted Device

Data Sheet Version 1.4 24 2003-07-22

Final Data TLE 6254-2G

Edition 2003-07-22

Published by Infineon Technologies AG,

St.-Martin-Strasse 53,

D-81541 München, Germany

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certain components and shall not be consid-

ered as warranted characteristics.

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including but not limited to warranties of

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tions and charts stated herein.

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manufacturer.

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