TLE4990

Programmable Linear Hall Sensor

Error Detection

Data Sheet

18

V 2.4, 2005-11

7

Error Detection

Broken supply lines can be detected by the OBD (On Board Diagnostics) and reported

to the µController.

Note: The OBD is only useful when the clamping function is enabled.

In the case of interrupted supply lines, the µController may warn the user.

If two sensors are placed in parallel, the output of the remaining working sensor may be

still used for an emergency operation.

Table 12

Open Circuit (OBD parameters)

Parameter

Symbol Limit Values

Unit

Notes

min.

max.

Output voltage

@ Open

0

6

%

1)

With

Output voltage

@ Open

94

100

%