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L9924LTR датащи(PDF) 47 Page - STMicroelectronics

номер детали L9924LTR
подробное описание детали  Automotive vehicle conform truck car alternator regulator IC with LIN
PDF  84 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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L9924LTR датащи(HTML) 47 Page - STMicroelectronics

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L9924L
Warning, alarms and faults
83
5
Warning, alarms and faults
As general approach, the device provides embedded and automatic safety checks: in this
way any critical condition is automatically managed by hardware without the need of the
application software that has the task to signal the event and to apply, if possible, the proper
restore procedure or to keep the system in a safe status.
5.1
System error flags
The following events, signaled in SPI read register 0x12 [12.4.5] are foreseen:
Table 32. System error flags
Bit
Description
Action
EXTP_OC
Excitation overcurrent [4.3.10]
HW and SW
This flag has an effect also on CP_LOW bit
THSD
Overtemperature
None
PHO_OC
Phase out overcurrent [4.3.18]
HW and SW
CP_LOW
Charge pump low voltage [4.3.19]
HW and SW
APLUS_OV
Battery overvoltage [4.3.1]
HW and SW
APLUS_UV
Battery undervoltage [4.3.1]
None
LIN_PERM_DOM LIN Permanent Dominant
HW and SW
LIN_TXD_DOM
LIN Dominant TXD
HW and SW
LIN_PERM_REC LIN Permanent Recessive
HW and SW
DFM_OC
DFM overcurrent [4.3.6]
HW and SW
L_HS_OC
L High-side overcurrent [4.3.13]
HW and SW
L_LS_OC
L Low-side overcurrent [4.3.15]
HW and SW
LHC_HS_OC
LHC High-side overcurrent [4.3.15]
HW and SW
LHC_LS_OC
LHC Low-side overcurrent [4.3.15]
HW and SW



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