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L9362
1.0 Diagnostic Register and SPI timing
Figure 1. Impulse diagram to read the Diagnostic Register
Note: FR_RESET means Reset failure storage (internal signal)
Figure 2. Diagnostic Failure Register Structure
FR_RESET
SDI LSB D1 D2 D3 D4 D5
99AT0008
D6 MSB
D2SDO
CLK
NCS
LSBFSL D1 D6D4D3 D5 MSB
99AT0009/A
D5D7 D6 D1D3D4 D2 D0 FSL
MSB LSB
Failure indicator bit
(only valid during NCS = LOW
to the first L to H CLK change
1: failure stored
0: no failures
Status channel 4
D0 D1 Status
1 1 no failures
1 0 open circuit, channel on
0 1 short to battery or overtemperature
0 0 short to gnd, channel off
Status channel 3
D2 D3 corresponding to D0 D1
Status channel 2
D4 D5 corresponding to D0 D1
Status channel 1
D6 D7 corresponding to D0 D1
L9362
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Figure 3. Timing of the Serial Interface
Figure 4. Short-Circuit to GND Failure (SCG-Failure) Detection
SDI
t
scld
t
hcld
D0 D1 D7
99AT0010
t
hclch
t
sclch
t
csdv
SDO
CLK
NCS
t
pcld
FSL
t
clh
t
hclcl
D0
t
cll
D7
t
pchdz
t
sclcl
00AT0002
t_SCG (filter-time)
Failure-detection
V
drain
V
drain
< V
ref
at OFF-state
Failure-store
Filter-time
V
ref
NON
OFF
ON
Failure-detection time
for a SCG-failure
SCG-failure
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L9362
Figure 5. Open-Load Failure (OL-Failure) Detection
00AT0003
NON
OFF
ON
Failure detection active
for a sporadical OL-failure
Lload
I_OL
Lload > I_OL
Diagnostic active
t_OL (filter-time)
Failure-detection
Failure-store
Sporadical failure-detection Statical failure-detection
t_OL
Retrigger
t filter
Retrigger
filter
Lload > I_OL
for t > t_OL
Sporadical
failure-detection
t < t_OL

L9362

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Gate Drivers Quad Low Side
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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