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VNF9D5F Datasheet(PDF) 64 Page - STMicroelectronics

Part # VNF9D5F
Description  2-channel high-side driver with STi²Fuse protection for automotive power distribution applications
PDF  108 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNF9D5F Datasheet(HTML) 64 Page - STMicroelectronics

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6.3
Power limitation counter
The flowchart below displays the flow of the events and states. It does not include the timer update by MCU.
Figure 33. Power limitation counter flowchart
Start
Timer
End
End
No
No
No
Yes
Yes
Yes
0x0F
0xEF..0x10
End timer
EVENT ?
EVENT ?
End timer ?
Counter = N - 1
LatchOff timer
register
=
m :: 0xmF
0 :: 0x0F
.Latch OFF
.Set Error
flag
Wait
(Flag single step
duration)
.Stop Timer
.Reset Flag
.Reset Flag
Power limitation counter
6.4
Fail-safe mode
In fail-safe mode, the device is in unlimited auto-restart operation. The blanking time window has no effect on the
duration of the auto-restart. The timers in the fail-safe mode are frozen and inactive.
This ensures full independence of the fail-safe mode of operation.
VNF9D5F
Programmable blanking window (PBW)
DS13946 - Rev 8
page 64/108



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