AXP223 Datasheet, PDF (26/56 Pages) List of Unclassifed Manufacturers – PMIC Optimized For Multi-Core High-Performance System

AXP223
PMIC Optimized For Multi-Core High-Performance System
9.5. E-Gauge ^™ Fuel Gauge system
Multiple 12Bit ADC of AXP223 can measuring the battery voltage and current ，battery charge and discharge coulometer are
internal integration at the same time .Based on this，AXP223 integrated dual-mode fuel gauge system.Under the easy mode，
save the exact of the battery parameters needs to initialize，achieve high compatibility with a large number of batteries；but in
precision mode，Optimized parameters of particular battery ， achieve measurement accuracy of up to 2%.
Enable control and sampling rate of all ADC can be set visa register REG84H ，sample results are stored in the
corresponding register，See the ADC data description of register .decide by register REG00H[2] .
Channel
Battery Voltage
Bat discharge current
Bat charge current
Internal temperature
TS pin input
000H
0mV
0mA
0mA
-267.7℃
0mV
STEP
1.1mV
1mA
1mA
0.1℃
0.8mV
FFFH
4.5045V
4.095A
4.095A
165.8℃
3.276V
9.6. Multi-Function Pin Description
GPIO[1:0]
Can be defined as GPIO[1:0],or LDO, etc. Please refer to REG90H-96H Instruction for details.
CHGLED
Features charge state indication, over-temperature/over-voltage warning, and Motor-drive ，if REG32[2]=0 ，the PIN
driveability is 100mA，connect micro vibration motor to 3.3V
Power serial links to current limiting resistor ，vibration motor can be driven directly.if REG32[2]=1，the PIN state is charging、
over-temperature and over-voltage warning function indicator.
9.7. Timer
AXP223 features a internal timer, whose values can be programmed via register REG8AH[6:0]. The minimum time step of timer is
minute，timer will be set in REG8AH[7] after timeout.
AXP223 Datasheet Revision 1.1
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