ACT3704
Rev2, 26-Jul-07
Table 2:
Safety Timer Settings
CTIMER
(nF)
TPRECONDITION
(minutes)
TNORMAL
(minutes)
TTOTAL
(minutes)
2.2
3.3
6
20
30
30
45
60
90
60
90
180
270
630
10
30
90
120
315
210
STATE DIAGRAM
ANY STATE
VIN < 4.0V
SUSPEND
VIN > 4.0V
PRECONDITION
Time > TPRECONDITION
VBAT > 2.8V
VBAT < 2.7V
Time > TNORMAL
NORMAL
TIMEOUT-FAULT
VBAT = VREG
VBAT < VREG
Time > TTOTAL
TOP OFF
IBAT < 10% ICHRG
and T > TEOC
VBAT < VTERM - 0.1V
END OF CHARGE
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