Datasheet

21

Rev. 1.20

2022-04-27

TLE7258

LIN transceiver

Electrical characteristics

Leakage current

IBUS_PAS_rec –1

5

µA

VS = 8 V; VBUS = 18 V;

4.8.6

Forward voltage serial diode

VSerDiode

0.4

–

1.0

V

ISerDiode = 75 µA;

LIN Spec 2.2A (Par. 21)

4.8.7

Bus pull-up resistance

Rslave

20

40

60

kΩ

LIN Spec 2.2A (Par. 26)

4.8.8

Bus dominant output voltage

maximum load

VBUS,do

–

–

–

–

1.4

2.0

V

V

VTxD = 0 V; RL = 500 Ω;

VS =7 V;

VS = 18 V;

4.8.9

Dynamic Transceiver Characteristics

Propagation delay:

LIN bus dominant to RxD “low”

LIN bus recessive to RxD “high”

trx_pdft

trx_pdr

1

1

3.5

3.5

6

6

µs

µs

LIN Spec 2.2A (Par. 31)

RRxD = 2.4 kΩ; CRxD = 20 pF

4.9.1

Receiver delay symmetry

trx_sym

-2

–

2

µs

LIN Spec 2.2A (Par. 32)

trx_sym = trx_pdf - trx_pdr;

RRxD = 2.4 kΩ; CRxD = 20 pF

4.9.2

Dominant time for bus wake-up tWK,bus

30

–

150

µs

–

4.9.3

Delay time for mode change

tMODE

––

50

µs

4)

4.9.4

TxD time-out

tTxD

8

18

28

ms –

4.9.5

TxD recessive time to release

transmitter

tto,rec

––

10

µs

1)

4.9.6

Duty cycle D1

(for worst case at 20 kBit/s)

D1

0.396 –

–

–

Duty cycle 1 5)

THRec(max) = 0.744 × VS;

THDom(max) =0.581 × VS;

VS = 7.0 … 18 V; tbit = 50 µs;

D1 = tbus_rec(min) / 2 × tbit;

LIN Spec 2.2A (Par. 27)

4.9.7

Duty cycle D1

for VS supply 5.5 V to 7.0 V

(for worst case at 20 kBit/s)

D1

0.396 –

–

–

Duty cycle 1 5)

THRec(max) = 0.760 × VS;

THDom(max) = 0.593 × VS;

5.5 V < VS <7.0 V;

tbit = 50 µs;

D1 = tbus_rec(min) / 2 × tbit

4.9.8

Duty cycle D2

(for worst case at 20 kBit/s)

D2

–

–

0.581 –

Duty cycle 2 5)

THRec(min)= 0.422 × VS;

THDom(min)= 0.284 × VS;

VS = 7.6 … 18 V; tbit = 50 µs;

D2 = tbus_rec(max) / 2 × tbit;

LIN Spec 2.2A (Par. 28)

4.9.9

Table 6

Electrical characteristics (cont’d)

5.5 V < VS <18V; RL = 500 Ω; -40°C < Tj < 150°C;

all voltages with respect to ground; positive current flowing into pin; unless otherwise specified.

Parameter

Symbol

Values

Unit Note or Test Condition

Num

ber

Min. Typ. Max.