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STNS01 データシート(PDF) 18 Page - STMicroelectronics

部品番号 STNS01
部品情報  Battery overcurrent protection
PDF  29 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STNS01 データシート(HTML) 18 Page - STMicroelectronics

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Operation description
STNS01
18/29
DocID024654 Rev 2
Figure 18. Charging flowchart
AM12709v1
Start
End
t
PRE timer
Expired ?
Pre-charge
V
BAT <VPRE ?
V
BAT <VPRE
OR t
FAST timer
expired ?
VBAT <VFLOAT ?
Fast-charge
CC
I
BAT <IEND ?
Fast-charge
CV
Stop charger
Start alarm
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
Is Battery
Temperature
Good?
Stop charger,
Start alarm
Always active
During charge
Resume
charging,
Stop alarm
YES
NO
VBAT>VOCHG?
YES
Stop charger,
Start alarm
NO
End
Always active
During charge
Actions
Pre-charge: starts t
PRE timer,
starts charging in CC mode
at I
PRE
Fast-charge CC: starts t
FAST
timer, increases charge
current to I
FAST
Fast-charge CV: activates
the constant-voltagecontrol
loop
Start Alarm: the CHG pin
starts toggling



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