TLE75620-EST datasheet(53/81 Pages) INFINEON

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Datasheet

Rev. 1.0

2017-11-23

TLE75620-EST

SPIDER+ 12V

Diagnosis

Figure 30 Open Load at ON timings (diagnosis loop - channels driven by internal PWM Generators

9.3.3

OLON bit

The OLON bit can assume the following values:

• “0” = no Open Load at ON state detected, or the channel is OFF when the diagnosis is performed

• “1” = Open Load at ON state detected

According to the setting of DIAG_OLONEN.MUX different information are reported in the Standard Diagnosis.

• DIAG_OLONEN.MUX set to 0000B → 0111B: The OLON bit shows the Open Load at ON state diagnosis

performed on the selected channel. The information is updated at every Standard Diagnosis readout.

• DIAG_OLONEN.MUX set to 1010B: the OLON bit shows the “OR” combination of all bits in DIAG_OLON

• DIAG_OLONEN.MUX set to 1111B: the OLON bit shows the result of the latest diagnosis loop performed. It

is necessary to start another diagnosis loop to update the information.

• DIAG_OLONEN.MUX set to any other value: The OLON bit is set to “0”. These values of

DIAG_OLONEN.MUX bits are reserved and should not be used in the application.

OpenLoadON_loop_int.emf

DIAG_OLONEN.MUX

1111

tOLONSW

DIAG_OLON.OUTn

(updated)

DIAG_OLON.OUTn+2

(updated)

DIAG_OLON.OUTn+3

(updated)

tOLONSW

PWM Generator

tONMAX

DIAG_OLON.OUTn+1

(updated)

Allowed

(not allowed)

Multiplexer switch

for diagnosis

tOLONSW

(not allowed)

tONMAX

Allowed

tOLONSW

1010

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