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TLE7232G Fiches technique(PDF) 22 Page - Infineon Technologies AG

No de pièce TLE7232G
Description  SPI Driver for Enhanced Relay Control
PDF  36 Pages
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Fabricant  INFINEON [Infineon Technologies AG]
Site Internet  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

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SPI Driver for Enhanced Relay Control
SPIDER - TLE 7232G
Diagnostic Features
Data Sheet
22
V1.0, 2005-09-30
4.3
Diagnostic Features
The SPI of SPIDER - TLE 7232G provides diagnosis information about the device and
about the load. There are following diagnosis flags implemented:
• The diagnosis information of the protective functions (flags CLn and Tn) of channel n
is latched in the diagnosis flag Pn.
• The open load diagnosis of channel n is latched in the diagnosis flag OLn.
• The short to gnd monitor information of channel n is latched in the diagnosis flag SGn.
All flags are cleared after a successful SPI transmission.
There is an output state monitor implemented in the device that indicates the switch state
of the device in register STA. Depending on the voltage level at input pin and protective
functions the bits are high or low.
Please see Figure 9 for details:
Figure 9
Block Diagram Diagnosis
OUTn
IDS(PD)
SGn
VDD
V
DS(SG)
IDS(SG)
diagnosis .emf
protective functions
CLn
Tn
OR
SPI
MUX
00
01
10
OLn
VDS(OL)
CHn
OUTn
STA.
gate control
Pn
GND



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