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ACT8810 датащи(PDF) 49 Page - Active-Semi, Inc |
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ACT8810 датащи(HTML) 49 Page - Active-Semi, Inc |
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49 / 52 page ![]() ActivePathTM CHARGER ACT8810 Rev 4, 01-Oct-09 Active-Semi Innovative PowerTM - 49 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of Philips Electronics. Figure 15: Charger State Diagram Figure 14: Typical Li+ charge profile and ACT8810 charge states VSET ISET VPRECHARGE 12% ISET A B C D A: PRECONDITION State B: FAST-CHARGE State C: TOP-OFF State D: SLEEP State STATE E B RECHARGE E: DISCHARGE State Current Voltage SUSPEND PRECONDITION FAST-CHARGE DELAY SLEEP ANY STATE BATTERY REMOVED OR VCHG_IN < VBAT + 120mV OR VCHG_IN < UVLO BATTERY REPLACED AND VCHG_IN > VBAT + 120mV AND VCHG_IN > UVLO VBAT > 2.85V VBAT = VTERM VBAT < VTERM – 175mV TIMEOUT-FAULT T > TPRECONDITION AND VBAT < 2.85V TOP-OFF IBAT < ITERM IBAT > ITERM T > TNORMAL AND VBAT < VTERM |
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