l99pm62gxp STMicroelectronics, l99pm62gxp Datasheet - Page 40
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l99pm62gxp
Manufacturer Part Number
l99pm62gxp
Description
Power Management Ic With Lin And High Speed Can
Manufacturer
STMicroelectronics
Datasheet
1.L99PM62GXP.pdf
(102 pages)
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Protection and diagnosis
3.5
40/102
In case V
is latched and can be read and optionally cleared by SPI. If the Vlockout bit (Control
Register 4) is set to ‘1’ the drivers remain off until the status is cleared. If the Vlockout bit is
set to ‘0’ the drivers is switched on automatically if the error condition disappears.
With the LSOVUV_shutdown_en bit (Control Register 4) the drivers can be excluded from a
switch off in case of V
otherwise the drivers remain on.
SPI diagnosis
Digital diagnosis features are provided by SPI (for details please refer to
registers.
●
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V
Overtemperature including. pre warning
Open-load separately for each output stage except REL1/REL2
Overload status separately for each output stage
Vs-supply over/under voltage
V
V
Status of the WU1 to 3
Wake-up sources (CAN, LIN, SPI, Timer, WU1…3)
chip reset bit (start from power-on reset)
Number of unsuccessful V
Number of sequential watchdog failures
LIN diagnosis (permanent recessive/dominant, dominant TxD)
CAN diagnosis (permanent recessive/dominant, dominant TxD, recessive RXD)
Device State (wake-up from V1 standby or V
Forced V
Watchdog timer state (diagnosis of watchdog)
Fail-safe status
SPI communication error
1
1
2
reset threshold programmable
and V
output short to GND
S
over/undervoltage condition, the drivers is switched off. The according status bit
2
BAT
fail bit
standby after WD-fail, forced V
S
over/undervoltage. If the bit is set to ‘1’ the driver switches off,
Doc ID 17639 Rev 3
1
restarts after thermal shutdown
BAT
BAT
standby after overtemperature
standby)
Section 6.2: SPI
L99PM62GXP