STC3117 Datasheet, PDF (4/34 Pages) STMicroelectronics – Gas gauge IC with battery charger control for handheld applications

Block diagram
1
Block diagram
VCC
BATD
CD
ALM
Figure 1. STC3117 internal block diagram
Battery detection
and charge control
control logic &
state machine
control registers
1.2 V
reference
32768 Hz
time base
AD converter
MUX
Oscillator
Temperature
sensor
CS+
CS-
STC3117
VIN
CS
SCL
I²C interface
SDA
RAM and ID registers
GND
4/34
DocID025792 Rev 2