9

9146D–AUTO–09/10

Atmel ATA6663/ATA6664

3.15

Fail-safe Features

• During a short-circuit at LIN to V

to the power dissipation, the chip temperature exceeds T

off. The chip cools down, and after a hysteresis of T

• During a short-circuit from LIN to GND the IC can be switched to sleep mode, and even in

this case the current consumption is lower than 45µA. When the short-circuit has elapsed,

the IC starts with a remote wake-up.

•If the Atmel

bus, the IC switches back to sleep mode automatically. The current consumption is lower

than 45µA in this case.

• The reverse current is < 2µA at pin LIN during loss of V

systems where some slave nodes are supplied from battery or ignition.

• Pin EN provides a pull-down resistor to force the transceiver into sleep mode if EN is

disconnected

• Pin RXD is set floating if V

• Pin TXD provides a pull-down resistor to provide a static low if TXD is disconnected

• The INH output transistor is protected by temperature monitoring