Datasheet

DocID023755 Rev 4 7/31
STC3115 Electrical characteristics
31
Battery voltage and temperature measurement
Vin_adc Input voltage range V
CC
= 4.5 V 0 4.5 V
LSB LSB value
Voltage measurement 2.20 mV
Temperature measurement 1 °C
ADC_time AD conversion time 250 ms
Volt_acc Battery voltage measurement accuracy
2.7 V < Vin < 4.5 V,
V
CC
= Vin 25 °C
-0.25 +0.25
%
Over temperature range -0.5 +0.5
Temp_acc Internal temperature sensor accuracy -3 3 °C
Digital I/O pins (SCL, SDA, ALM, RSTIO/BATD)
Vih Input logic high 1.2
VVil Input logic low 0.35
Vol Output logic low (SDA, ALM, RSTIO) Iol = 4 mA 0.4
BATD/CD pin
Vith Input threshold voltage 1.46 1.61 1.76
V
Vihyst Input voltage hysteresis 0.1
Voh
Output logic high
(charge inhibit mode enable)
Ioh = 3 mA
Vbat-
0.4
Table 4. Electrical characteristics (2.7 V < V
CC
< 4.5 V, -20 °C to 70 °C) (continued)
Symbol Parameter Conditions Min Typ Max Units