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L9788 Datasheet(PDF) 173 Page - STMicroelectronics

Part # L9788
Description  Multifunction IC for automotive engine management system
PDF  264 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9788 Datasheet(HTML) 173 Page - STMicroelectronics

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DS12308 Rev 4
173/264
L9788
Built in self test
263
Figure 80. Analog bist implementation
The analog bist is applied to the following analog comparators:
V3V3A_OV, V3V3A_UV, V3V3D_OV, V3V3D_UV (internal supply monitors) VDD5_OV,
VDD5_UV (VDD5 monitors)
The bist is run on MSC command BIST_EN. The result is read and clear by MSC.
On driver section BIST is implemented for diagnostic of main outputs:
OVC, OPL, STG comparators (injectors)
STG comparator (igniter)
The bist is run on MSC command. The result is read and cleared by MSC.
GADG1212161540PS
Control
V+
VB
V3VA
V3V_PRE (VBG1)
Primary
Secondary
OV_FLT
UV_FLT
BIST_EN
BG_READY
VBG2
V3VD
+
-
+
-
+
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