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| BQ2406X Datasheet, PDF (8/31 Pages) Texas Instruments – 1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION | |||
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bq2406x
SLUS689 â JUNE 2006
A modified charge cycle, with the thermal loop active, is shown in Figure 3.
VO(BATREG)
IO(BAT)
FAST-CHARGE
CURRENT
PRE-CHARGE
CURRENT AND
TERMINATION
THRESHOLD
VO(LOWV)
Pre-
Conditioning
Phase
Thermal
Regulation
Phase
Current
Regulation
Phase
Voltage Regulation and
Charge Termination
Phase
Battery
Voltage,
V(BAT)
Battery Current,
I(BAT)
Charge
Complete
Status,
Charger
Off
IO(PRECHG),I(TERM)
T(THREG)
temperature , Tj
www.ti.com
DONE
T(PRECHG)
T(CHG)
Figure 3. Charge Profile, Thermal Loop Active
DONE
8
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