DS2711(2008) 查看數據表（PDF） - Maxim Integrated
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DS2711 Datasheet PDF : 15 Pages
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PARAMETER
Duty Factor, Parallel
Precharge/Top-Off
Duty Factor, Maintenance
Charge
Cell Test Interval
SYMBOL
tCTST
CONDITIONS
CC1, CC2
CC1, CC2
Precharge Time-Out
Fast-Charge Termination
Hold-Off Period
Fast-Charge Flat Voltage
Time-Out
Charge Timer Period
tPCHG
tTHO
tFLAT
tCTMR
VCELL < VBAT-MIN
VCELL not increasing
RTMR = 100kΩ
Charge Timer Accuracy
RTMR = 100kΩ
Charge Timer Range
tCTMR-RANGE
DS2711/DS2712: Loose Cell NiMH Charger
MIN
TYP
MAX UNITS
0.125
0.0156
31
s
34
minutes
4
minutes
16
minutes
2.5
h
-5
+5
%
0.5
10
h
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Voltages relative to VSS.
IMTST current is applied as a source current and as a sink current within 5ms after power-up.
When operating in two-cell-series charge configuration, the DMSEL pin must have less than 50pF of external load capacitance
for proper operation. If the load capacitance is greater than 50pF, a resistor voltage divider should be used to maintain DMSEL
at VDD / 2.
Specification applicable during charge cycle with TA = 0°C to +70°C.
VBAT-MAX1 and VBAT-MAX1 are generated from the same reference. Their ranges never overlap.
VTHM-MIN, VTHM-MAX, and VTHM-STOP are fixed ratios of VDD. Their ranges never overlap.
Tested with ICSOUT = -1mA.
Gain tested with 1mV step with ICSOUT = -1mA.
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