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AN1464 Datasheet(PDF) 12 Page - STMicroelectronics

Part # AN1464
Description  LOW-COST DOUBLE LI-ION BATTERY CHARGER
PDF  27 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN1464 Datasheet(HTML) 12 Page - STMicroelectronics

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LOW-COST DOUBLE LI-ION BATTERY CHARGER USING ST6255C/ST6265C MCU
Figure 6. ST6255C Software Flowchart
Front slot monitor
Updates front slot state depending on:
Previous
slot states
Measurements
Time-keeper
RESET
Initialise I/O ports and peripherals
Initialise slot states
Launch time-keeper
Wait for
state update request
from main time base
Perform the measurements
Correct battery voltage measurements
with battery current measurements
Reset
timekeeper
Update output configuration
Front
Rear
Voltage
mean of 256
mean of 256
Current
mean of 256
mean of 256
Thermistor
11
LEDs on/off
Front
Charge enable/disable
LEDs on/off
Rear
Charge enable/disable
Output on/off
Common PWM
Duty cycle
?
Rear slot monitor
Updates rear slot state depending on:
Previous
slot states
Measurements
Timekeeper



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