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ADP5360ACBZ-1-R7 Datasheet(PDF) 25 Page - Analog Devices |
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ADP5360ACBZ-1-R7 Datasheet(HTML) 25 Page - Analog Devices |
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25 / 60 page  Data Sheet ADP5360 Rev. 0 | Page 25 of 60 Battery Charger Operational Flow Chart VBUSOK Y N FAST CHARGE Y WATCHDOG EXPIRED START tSAFE IBUS = 100mA TIMER FAULT/ BAD BATTERY RUN BATTERY DETECTION VBUS_ILIM = HIGH IVBUS = ILIM TSD110 = HIGH TEMP = TSD WATCHDOG EXPIRED IVBUS = 100mA TIMER FAULT/ BAD BATTERY (SEE THE FAST CHARGE MODE TIMER SECTION AND THE SAFETY TIMER SECTION) CONSTANT CURRENT MODE CHARGING CONSTANT VOLTAGE MODE CHARGING N N CHARGE COMPLETE Y Y N N TRICKLE CHARGE Y Y N N Y N N Y N N Y VBUSOK VBUSOK Y Y N N N Y Y N Y Y N Y POWER-ON RESET RESET ALL REGISTERS RUN BATTERY DETECTION tSTART EXPIRED tWD EXPIRED tWD EXPIRED tSAFE/tTRK EXPIRED tSAFE/tCHG EXPIRED VBSNS = VTRM VBSNS ≤ VNOBAT VBSNS ≤ VTRM – VRCH IOUT < IEND POWER DOWN VBSNS < VTRK IVBUS < ILIM TEMP < TSD START tSAFE VBSNS < VTRK Figure 51. Charger Operational Flowchart BATTERY FUEL GAUGE General Description The ADP5360 Li-Ion battery fuel gauge is optimized through a hybrid algorithm to indicate battery remaining capacity. The battery fuel gauge runs through a coulomb counter and is voltage- based between 0% to 100%. The battery fuel gauge uses a 12-bit ADC to measure the battery node voltage and the battery current. The state of the charge is calculated with an adaptive filter limitation algorithm integrated in the ADP5360. The ten open- circuit battery values and battery capacity are based on the battery characterization written to the V_SOC_x registers of the ADP5360 and used for the state of charge calculation. The sense current information, the battery capacity value, the continuous load current, and the large voltage drop all determine the state of the charge change rate. The fuel gauge operates as a coulomb counter with a high accuracy calculation when high continuous |
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