TLE7259-2GE Datasheet, PDF (16/31 Pages) Infineon Technologies AG – LIN Transceiver

TLE7259-2GE
Functional Description
This feature is only applicable, if the master termination of the LIN bus is connected to the INH pin, instead of being
connected to the power supply V_S (see Figure 15 and Figure 16). Internally, the 30 kΩ path is also switched off
from the power supply V_S (see Figure 1).
A separate Master Termination Switch is implemented at the pin BUS, to avoid a voltage drop on the recessive
level of LIN bus, in case of a dominant level or a short to ground on at the LIN bus.
4.12
LIN Specifications 1.2, 1.3, 2.0 and 2.1
The device fulfills the Physical Layer Specification of LIN 1.2, 1.3, 2.0 and 2.1.
The differences between LIN specification 1.2 and 1.3 is mainly the physical layer specification. The reason was
to improve the compatibility between the nodes.
The LIN specification 2.0 is a super set of the 1.3 version. The 2.0 version offers new features. However, it is
possible to use the LIN 1.3 slave node in a 2.0 node cluster, as long as the new features are not used. Vice versa
it is possible to use a LIN 2.0 node in the 1.3 cluster without using the new features.
In terms of the physical layer the LIN 2.1 Specification doesn’t include any changes and is fully compliant to the
LIN Specification 2.0.
LIN 2.1 is the latest version of the LIN specification, released in December 2006.
Data Sheet
16
Rev. 1.1, 2008-09-05