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NPM1100-CAAA-R7 Datasheet(PDF) 20 Page - Nordic Semiconductor |
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NPM1100-CAAA-R7 Datasheet(HTML) 20 Page - Nordic Semiconductor |
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20 / 58 page  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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