Data Sheet

22

Rev 2.1, 2007-04-27

TLE7259G

Application Information

7

Application Information

7.1

ESD Robustness according to IEC61000-4-2

Test for ESD robustness according to IEC61000-4-2 “Gun test” (150 pF, 330

Ω) have been performed. The results

and test conditions are available in a seperate test report.

7.2

Master Termination

To achieve the required timings for the dominant to recessive transition of the bus signal an additional external

termination resistor of 1 k

Ω is mandatory. It is recommended to place this resistor at the master node. To avoid

reverse currents from the bus line into the battery supply line it is recommended to place a diode in series with the

external pull-up. For small systems (low bus capacitance) the EMC performance of the system is supported by an

additional capacitor of at least 1 nF in the master node (see Figure 11 and Figure 12, application circuit).

7.3

External Capacitors

A capacitor of 22

reverse polarity diode this prevents the device from detecting power down conditions in case of negative transients

on the supply line.

The 100 nF capacitors close to the

V

behavior of the system.

Table 8

ESD “Gun test”

Performed Test

Result

Unit

Remarks

Electrostatic discharge voltage at pin

V

versus GND

≥ +8

kV

1) ESD susceptibility “ESD GUN” according LIN EMC 1.3 Test Specification, Section 4.3. (IEC 61000-4-2) -Tested by external

testhouse (IBEE Zwickau, EMC Testreport Nr. 16-05-06).

Electrostatic discharge voltage at pin

V

versus GND

≤ -8

kV

1)Negative pulse