Data Sheet

18

Rev 1.0, 2012-10-01

TLE 8088 EM

K-Line

7K-Line

7.1

K-Line

The K-Line module is a serial link bus interface device designed to provide bi-directional half-duplex

communication interfacing. It is designed to interface between the vehicles via the special ISO K-line and meets

the ISO norm 9141 specification. The device's K line bus driver's output is protected against bus shorts.

K-Line module transforms 5.0V micro-controller logic signals to battery level logic signals and vice versa. The over

current limitation limits the current to a specified limit. In case of over-temperature on OUT1 the low-side switch

and the output stage KIO will be switched off and can only be re-activated if the temperature has decreased below

the minimum hysteresis value.

.

Figure 11

K-Line

VS

V5DD

RX

TX

KIO

Driver &

Protection