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L9908 датащи(PDF) 41 Page - STMicroelectronics

номер детали L9908
подробное описание детали  Automotive 3-Phase motor gate driver unit
PDF  153 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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L9908 датащи(HTML) 41 Page - STMicroelectronics

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5.6.3
Half bridges disable logic
The enabling/disabling operation of the n-th Half Bridges is managed by a dedicated combinatory disable logic
which constantly processes the following disable sources:
HBn_DIS SPI configuration register status
EN_BR pin status
STD faults detection
VPRE UV fault detection
NDIS pin state
Configurable reaction faults detection with related FRC set as 00 or 01
The status of the n-th disable n-th half bridge is echoed into dedicated SPI readable registers: HBn_EN_ECHO [n
= 1, 2, 3].
5.6.4
Gate driver supply enable logic
The enabling/disabling operation of the Gate Driver supply unit (CP1 and CP2) is managed by a dedicated
combinatory disable logic which constantly processes the following disable sources:
CP1_DIS & CP2_DIS SPI bits status (within register SAFETY_RELEVANT3)
STD faults detection
NDIS pin status
Configurable reaction faults detection with related FRC set as 00
The status of the n-th charge pump is echoed into dedicated SPI signals CPn_EN_ECHO [n = 1,2,3], within
register GEN_STATUS3.
L9908
Fault Handling Management (FHM)
DS13546 - Rev 3
page 41/153



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