Electrical characteristics (continued) – Rainbow Electronics ATA6624 User Manual

Page 20

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20

4986F–AUTO–07/08

ATA6622/ATA6624/ATA6626

8.7

LIN current limitation
V

BUS

= V

Batt_max

LIN

I

BUS_LIM

40

120

200

mA

A

8.8

Input leakage current at
the receiver including
pull-up resistor as
specified

Input leakage current
Driver off
V

BUS

= 0V

V

Batt

= 12V

LIN

I

BUS_PAS_dom

–1

–0.35

mA

A

8.9

Leakage current LIN
recessive

Driver off
8V < V

Batt

< 18V

8V < V

BUS

< 18V

V

BUS

V

Batt

LIN

I

BUS_PAS_rec

15

20

µA

A

8.10

Leakage current when
control unit disconnected
from ground.
Loss of local ground
must not affect
communication in the
residual network.

GND

Device

= V

S

V

Batt

= 12V

0V < V

BUS

< 18V

LIN

I

BUS_NO_gnd

–10

+0.5

+10

µA

A

8.11

Node has to sustain the
current that can flow
under this condition. Bus
must remain operational
under this condition.

V

Batt

disconnected

V

SUP_Device

= GND

0V < V

BUS

< 18V

LIN

I

BUS

5

15

µA

A

9

LIN Bus Receiver

9.1

Center of receiver
threshold

V

BUS_CNT

=

(V

th_dom

+ V

th

_

rec

)/2

LIN

V

BUS_CNT

0.475

×

V

S

0.5

×

V

S

0.525

×

V

S

V

A

9.2

Receiver dominant state V

EN

= 5V

LIN

V

BUSdom

0.4

×

V

S

V

A

9.3

Receiver recessive state V

EN

= 5V

LIN

V

BUSrec

0.6

×

V

S

V

A

9.4

Receiver input
hysteresis

V

hys

= V

th_rec

– V

th_dom

LIN

V

BUShys

0.028

×

V

S

0.1

×

V

S

0.175

×

V

S

V

A

9.5

Pre_Wake detection LIN
High-level input voltage

LIN

V

LINH

V

S

– 1V

V

S

+

0.3V

V

A

9.6

Pre_Wake detection LIN
Low-level input voltage

Activates the LIN receiver

LIN

V

LINL

–27

V

S

3.3V

V

A

10

Internal Timers

10.1

Dominant time for
wake-up via LIN bus

V

LIN

= 0V

t

bus

30

90

150

µs

A

10.2

Time delay for mode
change from Fail-safe
into Normal Mode via
EN pin

V

EN

= 5V

t

norm

5

15

20

µs

A

10.3

Time delay for mode
change from Normal
Mode to Sleep Mode via
EN pin

V

EN

= 0V

t

sleep

2

7

12

µs

A

10.4

TXD dominant time-out
timer (ATA6626 disabled)

V

TXD

= 0V

t

dom

6

13

20

ms

A

8.

Electrical Characteristics (Continued)

5V < V

S

< 27V, -40°C < Tj < 150°C, unless otherwise specified. All values refer to GND pins

No.

Parameters

Test Conditions

Pin

Symbol

Min.

Typ.

Max.

Unit

Type*

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

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