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| BQ24072_10 Datasheet, PDF (24/42 Pages) Texas Instruments – 1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC | |||
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bq24072, bq24073
bq24074, bq24075, bq24079
SLUS810E â SEPTEMBER 2008 â REVISED JULY 2010
Begin Charging
Yes
Battery short detected?
No
Start Precharge
CHG = Low
No
VBAT > VLOWV
Yes
Start Fastcharge
ICHARGE set by ISET
IBAT < ITERM
No
Yes
Charge Done
CHG = Hi-Z
No
tPRECHARGE
Elapsed?
End Charge
Flash CHG
No
t FASTCHARGE
Elapsed?
End Charge
Flash CHG
TD = Low
(â72, â73 Only)
No
(â74, â75 = YES)
Yes
Termination Reached
BATTFET Off
Wait for VBAT < VRCH
No
VBAT < VRCH
Yes
Run Battery Detection
No
Battery Detected?
Yes
Figure 40. Battery Charging Flow Diagram
www.ti.com
24
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Product Folder Link(s): bq24072 bq24073 bq24074 bq24075, bq24079
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