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NPM1100-CAAA-R7 データシート(PDF) 20 Page - Nordic Semiconductor

部品番号 NPM1100-CAAA-R7
部品情報  nPM1100
PDF  58 Pages
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メーカー  NORDIC [Nordic Semiconductor]
ホームページ  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NPM1100-CAAA-R7 データシート(HTML) 20 Page - Nordic Semiconductor

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Core components
VBUS connect event
Battery detection
Trickle charging
Fast charging
Constant voltage charging
Charging complete
Battery detected
VBAT ≥ V
VBAT ≥ V
IBAT ≤ I
VBAT < V
TRICKLEFAST
TERM
TERM
RECHARGE
Figure 9: Charging cycle flow chart
VTRICKLE_FAST
VTERM
I
V
t
Trickle
charge
Fast charge
Constant voltage charge Charging complete
ICHGLIM
ITRICKLE
ITERM
Figure 10: Charging cycle
6.2.2 Battery detection and UVLO
Battery detection and undervoltage lockout (UVLO) release is run before charging starts.
The charger waits until a battery is detected before charging. If UVLO release fails, then the charger retries
every 500 ms.
Note: UVLO release refers to a UVLO circuit implemented in the battery pack. The device does not
have an undervoltage lockout circuit and it must be implemented in the battery pack to protect
against battery failure due to long term discharge.
4445_367 v1.0
20



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