STC3117 Datasheet, PDF (7/34 Pages) STMicroelectronics – Gas gauge IC with battery charger control for handheld applications

STC3117
4
Electrical characteristics
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
I_STBY
Operating current consumption
Current consumption in standby
Average value over 4 s in
voltage mode
Average value over 4 s in
mixed mode
Standby mode,
inputs = 0 V
BATD_PU bit = 0
40
80
µA
2
I_PDN
Current consumption in power-down
V_CC < UVLO_TH,
inputs = 0 V
1
UVLO_TH
UVLO_HYST
POR
Undervoltage threshold
Undervoltage threshold hysteresis
Power-on reset threshold
Current sensing
(V_CC decreasing)
(V_CC decreasing)
2.5 2.6 2.7 V
100
mV
2.0
V
Vin_gg
Input voltage range
-40
+40 mV
I_IN
ADC_res
Input current
AD converter granularity
500 nA
5.88
µV
ADC_offset AD converter offset
CS = 0 V
-3
3 LSB
ADC_time
AD conversion time
500
ms
ADC_acc
AD converter gain accuracy at full
scale (using external sense resistor)
25 ° C
Over temperature range
0.5
%
1
F_OSC
Osc_acc
Internal time base frequency
Internal time base accuracy
25 ° C, V_CC = 3.6 V
Over temperature and
voltage ranges
32768
Hz
2
%
2.5
Cur_res
Current register LSB value
5.88
µV
Battery voltage and temperature measurement
Vin_adc
LSB
Input voltage range
LSB value
V_CC = 4.5 V
0
Voltage measurement
Temperature measurement
4.5 V
2.20
mV
1
°C
ADC_time
AD conversion time
250
ms
Volt_acc
2.7 V < Vin < 4.5 V,
Battery voltage measurement accuracy ^VCC ^{= Vin, 25 ° C}
Over temperature range
-0.25
-0.5
+0.25
%
+0.5
Temp_acc
Internal temperature sensor accuracy
-3
3 °C
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