STC3100 Electrical characteristics
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4 Electrical characteristics
Table 4. Electrical characteristics (2.7 V < V
CC
< 4.5 V, -20° C to 70° C)
Symbol Parameter Conditions Min Typ Max Units
Supply
I
CC
Operating current consumption Average value over 4s 100 uA
Istby Current consumption in standby standby mode, inputs=0V 2 uA
Ipdn Current consumption in power down V
CC
< UVLOth, inputs=0V 1 uA
UVLOth Undervoltage threshold (V
CC
decreasing) 2.5 2.6 2.7 V
UVLOhyst Undervoltage threshold hysteresis 100 mV
POR Power-on reset threshold (V
CC
decreasing) 2.0 V
Gas gauge A/D converter
Vin_gg Input voltage range -80 +80 mV
Iin Input current for CG pin 500 nA
ADC_res AD converter granularity
12 bits
13 bits
14 bits
47.08
23.54
11.77
uV
uV
uV
ADC_offset AD converter offset
CG = 0V
12 bits
13 bits
14 bits
-2
-2
-3
2
2
3
LSB
LSB
LSB
ADC_time AD conversion time (32768Hz clock)
12 bits
13 bits
14 bits
125
250
500
ms
ms
ms
ADC_acc AD converter gain accuracy at full scale
25° C
over temperature range
0.5
1
%
%
Fosc Internal time base frequency Rosc = 200 kΩ, 0.1% 32768 Hz
Osc_acc Internal time base accuracy
25° C, V
CC
=3.6V
over temperature and
voltage ranges
2
2.5
%
%
Fosc_ext External time base frequency range 30 70 kHz
Cur_res Current register LSB value 11.77 uV
Chg_res
Charge register LSB value
(32,768 Hz clock)
=Cur_res*2^12*0.5/3600
6.70 uV.h
Global_
CG_acc
Gas gauge accuracy (not including the
external sense resistor tolerance)
Using internal time base
Using external time base
3.5
1
%
%
