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MC10XS3412CHFK Datasheet(PDF) 27 Page - Freescale Semiconductor, Inc

Part No. MC10XS3412CHFK
Description  Quad High Side Switch (Dual 10 mOhm, Dual 12 mOhm)
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MC10XS3412CHFK Datasheet(HTML) 27 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
27
10XS3412
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
OPERATIONAL MODES
The 10XS3412 has four operating modes: Sleep, Normal,
Fail-safe and Fault. Table 6 and Figure 11 summarize details
contained in succeeding paragraphs.
The Figure 10 describes an internal signal called IN_ON[x]
depending on IN[x] input.
Figure 10. IN_ON[x] internal signal
The 10XS3412 transits to operating modes according to
the following signals:
• wake-up = RST or WAKE or IN_ON[0] or IN_ON[1] or
IN_ON[2] or IN_ON[3],
• fail = (VDD Failure and VDD_FAIL_en) or (Watchdog
timeout and FSI input not shorted to ground),
• fault = OC[0:3] or OT[0:3] or SC[0:3] or UV or (OV and
OV_dis).
Figure 11. Operating Modes
IN_ON[x]
IN[x]
tIN
Table 6. 10XS3412 Operating Modes
Mode
wake-up
fail
fault
Comments
Sleep
0
x
x
Device is in Sleep mode. All
outputs are OFF.
Normal
1
0
0
Device is currently in Normal
mode. Watchdog is active if
enabled.
Fail Safe
1
1
0
Device is currently in Fail-safe
mode due to watchdog
timeout or VDD Failure
conditions. The output states
depend on the corresponding
input in case the FSI is open.
Fault
1
X
1
Device is currently in Fault
mode. The faulted output(s) is
(are) OFF. The safe autoretry
circuitry is active to turn-on
again the output(s).
x = Don’t care.
Sleep
(fail=0) and (wake-up=1) and (fault=0)
(wake-up=0)
Fail Safe
Normal
(wake-up=0)
(fail=1) and (wake-up=1) and (fault=0)
(fail=0) and (wake-up=1) and (fault=0)
(wake-up=1) and
(fail=1)
and (fault=0)
Fault
(wake-up=0)
(wake-up=1)
and (fault=1)
(fail=0)
and
(wake-up=1)
and (fault=1)
(fail=1) and
(wake-up=1)
and (fault=1)
(fail=0)
and
(wake-up=1)
and (fault=0)
(fail=1)
and
(wake-up=1)
and (fault=0)


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