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L9301 bảng dữ liệu(PDF) 30 Page - STMicroelectronics

tên linh kiện L9301
Giải thích chi tiết về linh kiện  Automotive octal low side driver or quad low side plus quad high side driver
PDF  51 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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L9301 bảng dữ liệu(HTML) 30 Page - STMicroelectronics

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Low side driver
L9301
30/51
DocID028688 Rev 6
9.3.4
OFF state diagnostic
The device provides the off-state diagnostic for each channel.
The short to ground and open load faults can be detected. The fault is reported in a SPI
register.
Figure 12. LS configuration diagnostic
The diagnostic blanking time is configurable through the dedicated diagoff_blank_sel bit.
9.3.5
DLOSS
In case the device is configured as low side and external diodes are used for freewheeling,
there is the possibility through a dedicated SPI bit to enable the ‘diode loss’ diagnosis that is
used to detect if the external diode is no more connected checking if during the OFF phase
the internal clamp is activated. Another SPI bit allows to configure the actions to be taken in
case of DLOSS fault.
Table 20. LS diagnostic
DIAGOL
DIAGLV
FAULT DETECTION
0
0
no fault
0
1
not possible
1
0
open load
1
1
short to ground



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