TLE8262E datasheet(43/93 Pages) INFINEON

43 / 93 page

Data Sheet

Rev. 1.0, 2009-03-31

TLE8262E

LIN Transceiver

The SBC includes up to three LIN blocks, but this chapter describes only one because all three LIN block are

completely identical.

10.1

Block Description

Figure 18

Functional Block Diagram

10.2

LIN Description

The LIN transceiver cells of the SBC is an interface between the protocol controller and the physical bus. It is

especially suitable for driving the bus line in LIN systems in automotive and industrial applications. It is compatible

to LIN 2.1 as well as SAE J2602-2.

To reduce current consumption, the LIN transceiver offers a LIN Wake Capable Mode and a LIN OFF Mode. The

LIN transceiver has a bus short to GND feature implemented to avoid a battery discharge. The transceiver offers

very good EMC performance within a broad frequency range independent of battery voltage. This is achieved by

implementing a slope control mechanism based on a constant slew rate. In case the

s < VUVOFF, the LIN bus pin

has high impedance and the maximum current which can flow in is set to IBUSlk

10.2.1

LIN Normal Mode

In this mode, it is possible to transmit and receive messages on each BusX. The LIN transceiver enters the LIN

Normal Mode after the microcontroller sends an SPI word (see Chapter 15) and also by entering SBC Software

Flash Mode.

Driver

Temp.-

Protection

Current

Limit

Output

Stage

TxD Input

Receiver

RxDx

BUSx

TxDx

RBUS

Filter

Timeout

LIN BLOCK.VSD

RTD

Vcc1µC

To SPI Diagnostic

RxD Diag

SPI Mode Control

Vcc1µC

Wake

Receiver

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