TLE4998P8(D)

Error Detection

Data Sheet

17

Revision 1.1, 2017-01

8

Error Detection

Different error cases can be detected by the On-Board-Diagnostics (OBD) and reported to the micro controller.

The OBD can only be used with the clamping functionality enabled.

8.1

Voltages Outside the Operating Range

•

Inside the ratings specified in Table 3-1 “Absolute Maximum Ratings” on Page 8

•

Outside the range specified in Table 4-1 “Operating Range” on Page 9

8.2

EEPROM Error Correction

The parity method is able to correct a single bit in the EEPROM line. One other single bit error in another EEPROM

line can also be detected, but not corrected. In case there is an incorrectable EEPROM failure, the open drain

stage is disabled and permanently kept in off state (high ohmic/sensor defect).

Table 8-1

Overvoltage

Parameter

Symbol

Values

Unit

Note / Test Condition

Min.

Typ.

Max.

Overvoltage threshold

16.65

17.5

18.35

V

Output duty cycle @ EEPROM error

1) Output stays in “off” state (high ohmic)

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