NPM1100-CAAA-R datasheet(20/58 Pages) NORDIC

Nome de Peças	NPM1100-CAAA-R

Descrição Electrónicos	nPM1100

PDF	58 Pages

Scroll/Zoom	100%

Fabricante Electrônico	NORDIC [Nordic Semiconductor]

Página de início	https://www.nordicsemi.com/

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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

IBAT ≤ I

VBAT < V

TRICKLEFAST

TERM

RECHARGE

Figure 9: Charging cycle flow chart

VTRICKLE_FAST

VTERM

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

NPM1100-CAAA-R Folha de dados(PDF) 20 Page - Nordic Semiconductor