EVK-ACT8945AQJ303-T Datasheet, PDF (37/42 Pages) Active-Semi, Inc – Advanced PMU for Atmel SAMA5D3 Series & SAM9 Series Processors

Figure 5:
Typical Li+ charge profile and ACT8945A charge states
ACT8945A
Rev 2, 11-Feb-14
A: PRECONDITION State
B: FAST-CHARGE State
C: TOP-OFF State
D: END-OF-CHARGE State
Figure 6:
Charger State Diagram
TEMP NOT OK
ANY STATE
(VCHGIN < VBAT) OR (VCHGIN < VCHGIN UVLO)
OR (VCHGIN > VOVP) OR (SUSCHG[ ] = 1)
TEMP-FAULT
SUSPEND
TEMP OK
(VCHGIN > VBAT) AND (VCHGIN > VCHGIN UVLO)
AND (VCHGIN < VOVP) AND (SUSCHG[ ] = 0)
TIME-OUT-FAULT
PRECONDITION
Time-out
Total Time-out
PRECONDITION
(VBAT > 2.85V) AND
(TQUAL = 32ms)
FAST-CHARGE
(VBAT = VTERM ) AND
(TQUAL = 32ms)
TOP-OFF
(VBAT < VTERM - 205mV )
AND (TQUAL = 32ms)
(IBAT < 10% x ICHG) OR (Total
Time-out) AND (TQUAL = 32ms)
END-OF-CHARGE
Innovative Power^TM
- 37 -
Active-Semi Proprietary―For Authorized Recipients and Customers
ActivePMU^TM and ActivePath^TM are trademarks of Active-Semi.
I²C^TM is a trademark of NXP.
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.