MLX90364 Datasheet, PDF (28/36 Pages) Melexis Microelectronic Systems – Triaxis® Position Sensor Assembly

MLX90364
Triaxis® Position Sensor Assembly
Diagnostic Item
Virtual Gain Code Out-of-spec
GAINOOS
Action
Debouncing
(programmable)
Effect on Outputs
Diagnostic low/high
Reporting (optional)
Virtual Gain Code Saturation
[GAINMIN..GAINMAX]
ADC Monitor (Analog to Digital
Converter)
ADCMONI
Under Voltage Monitoring
SUPPLYMONI =
(MT3VB) OR (MT4VB)
Over Voltage Monitoring
MT7V
Temperature Sensor Monitor
TEMPMONI
Saturation (optional)
Debouncing
(programmable)
Supply Debouncing
(programmable)
PTC entry after PTC
Debouncing
Debouncing
(programmable)
Gain Saturated @
GAINMIN-GAINMAX
Diagnostic low/high
Reporting (optional)
Diagnostic low/high
Reporting (optional)
Output in High-Impedance
Diagnostic low/high
Reporting (optional)
Saturate value used for
Temperature > 170degC (± 20) the compensations to -
Temperature < -60degC (± 20) ^{40degC and +150degC}
resp.
No effect
Hardware Diag. ( continuously checked by dedicated Logic )
Read/Write Access out of
physical memory
Fail-safe mode **
** CPU reset after
120ms
Diagnostic Low/High
Write Access to protected area
(IO and RAM Words)
Fail-safe mode **
** CPU reset after
120ms
Diagnostic low/high
Unauthorized Mode Entry
Fail-safe mode **
** CPU reset after
120ms
Diagnostic low/high
EEPROM Error Correcting
Code ( Hamming correction )
(Transparent) Error
Correction
no effect
Hardware Diag. ( continuously checked by dedicated Analog circuits )
Broken VSS
CPU Reset
on recovery
Pull down load =>
Diagnostic High
Pull up load =>
Diagnostic High
Broken VDD
CPU Reset
on recovery
Pull down load =>
Diagnostic Low
Pull up load =>
Diagnostic Low
Resistive Cable Test
Start-up on Hold
Diagnostic low/high
Type
Environ
&Analog
Environ
& Analog
Analog
HW
Environ
& Analog
Environ
Analog
Environ
& Analog
Digi HW
Digi HW
Digi HW
Digi HW
Environ
Environ
Environ
Monitoring Rate
1/DSP
n/applicable
Not a diagnostic
1/DSP
1/DSP
2ms
Reporting Rate
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
n/applicable
Not a diagnostic
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
2ms
1/DSP
6ms
x
Diag_Debounce_Thresh
Diag_Debounce_Stepup
n/applicable
Not a diagnostic
n/a
immediate Diag
n/a
immediate Diag.
n/a
immediate Diag
n/a.
n/a
immediate Diagnostic
n/a
immediate Diagnostic
.
n/a
immediate Diagnostic
n/a
n/a
immediate
Diagnostic
n/a
immediate
Diagnostic
n/a
immediate
Diagnostic
n/a
immediate Diagnostic
n/a
immediate Diagnostic
n/a
immediate Diagnostic.
MLX90364
Rev 4.1
Page 28 of 36
Datasheet
19/11/2015