7

9146D–AUTO–09/10

Atmel ATA6663/ATA6664

Figure 3-3.

Floating LIN Bus During Sleep Mode

If the Atmel

nant state (V

example), the IC switches back to sleep mode. The VS current consumption then consists of

I

(see Figure 3-4).

Figure 3-4.

Short Circuit to GND on the LIN Bus During Sleep Mode

I

VS

LIN Pre-wake

LIN dominant state

LIN BUS

Mode of

operation

Int. Pull-up

Resistor

RLIN

Wake-up Detection Phase

off (disabled)

Sleep Mode

Sleep Mode

Sleep Mode

LIN Pre-wake

LIN dominant state

LIN BUS

I

VS

Mode of

operation

Int. Pull-up

Resistor

RLIN

off (disabled)

on (enabled)

Wake-up Detection Phase

Sleep Mode

Fail-Safe Mode