Rainbow-electronics ATA6630 Manual de usuario descargar pdf (Pagina 26)

9117C–AUTO–10/09

ATA6628/ATA6630 [Preliminary]

10.2

Time delay for mode

change from Fail-safe into

Normal Mode via EN pin

= V

EN t

norm

51520µsA

10.3

Time delay for mode

change from Normal

Mode to Sleep Mode via

EN pin

= 0V EN t

sleep

2712µsA

10.4

TXD dominant time-out

timer

TXD

= 0V TXD t

dom

27 55 70 ms A

10.5

Time delay for mode

change from Silent Mode

into Normal Mode via EN

= V

EN t

s_n

51540µsA

10.6

Monitoring time for

wake-up over LIN bus

LIN t

mon

61015msA

LIN Bus Driver AC Parameter with Different Bus Loads

Load 1 (small): 1 nF, 1 kΩ ; Load 2 (large): 10 nF, 500Ω ; R

RXD

=5kΩ; C

RXD

=20pF;

Load 3 (medium): 6.8 nF, 660Ω characterized on samples; 10.7 and 10.8 specifies the timing parameters for proper operation of

20 Kbit/s, 10.9 and 10.10 at 10.4 Kbit/s

10.7 Duty cycle 1

Rec(max)

= 0.744 × V

Dom(max)

= 0.581 × V

= 7.0V to 18V

Bit

= 50 µs

D1 = t

bus_rec(min)

/(2 × t

Bit

)

LIN D1 0.396 A

10.8 Duty cycle 2

Rec(min)

= 0.422 × V

Dom(min)

= 0.284 × V

= 7.6V to 18V

Bit

= 50 µs

D2 = t

bus_rec(max)

/(2 × t

Bit

)

LIN D2 0.581 A

10.9 Duty cycle 3

Rec(max)

= 0.778 × V

Dom(max)

= 0.616 × V

= 7.0V to 18V

Bit

= 96 µs

D3 = t

bus_rec(min)

/(2 × t

Bit

)

LIN D3 0.417 A

10.10 Duty cycle 4

Rec(min)

= 0.389 × V

Dom(min)

= 0.251 × V

= 7.6V to 18V

Bit

= 96 µs

D4 = t

bus_rec(max)

/(2 × t

Bit

)

LIN D4 0.590 A

10.11

Slope time falling and

rising edge at LIN

= 7.0V to 18V LIN

SLOPE_fall

SLOPE_rise

3.5 22.5 µs A

Receiver Electrical AC Parameters of the LIN Physical Layer

LIN Receiver, RXD Load Conditions (C

RXD

): 20 pF

11.1

Propagation delay of

receiver (Figure 9-1 on

page 30)

= 7.0V to 18V

rx_pd

= max(t

rx_pdr

, t

rx_pdf

)

RXD t

rx_pd

6µsA

11.2

Symmetry of receiver

propagation delay rising

edge minus falling edge

= 7.0V to 18V

rx_sym

= t

rx_pdr

– t

rx_pdf

RXD t

rx_sym

–2 +2 µs A

9. Electrical Characteristics (Continued)

5V < V

< 27V, –40°C < T

< 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

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34

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Rainbow-electronics ATA6630 Manual de usuario Pagina 26

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