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ACT8828 Datasheet(PDF) 46 Page - Active-Semi, Inc

Part # ACT8828
Description  Six Channel ActivePathTM Power Management IC
PDF  49 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8828 Datasheet(HTML) 46 Page - Active-Semi, Inc

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ActivePath
TM CHARGER
ACT8828
Rev 3, 24-Sep-09
Active-Semi
Innovative Power
TM
- 46 -
www.active-semi.com
Copyright © 2009 Active-Semi, Inc.
ActivePMU
TM and ActivePathTM are trademarks of Active-Semi.
I
2CTM is a trademark of Philips Electronics.
Figure 10:
Typical Li+ Charge Profile and ACT8828 Charge States
Figure 11:
Charger State Diagram
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 – 170mV
TIMEOUT-FAULT
T > TPRECONDITION AND
VBAT < 2.85V
TOP-OFF
IBAT < ITERM
IBAT > ITERM
T > TNORMAL AND
VBAT < VTERM



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