Data Sheet

StartPrecharge
CHG =Low
Batteryshortdetected?
Yes
No
No
t
PRECHARGE
Elapsed?
BeginCharging
EndCharge
Flash CHG
I
BAT
< I
TERM
Yes
Yes
TD =Low
(’72, ’73 Only)
( 74’ , ’75= YES)
No
TerminationReached
BATTFET Off
WaitforV
BAT
< V
RCH
Yes
No
V
BAT
> V
LOWV
StartFastcharge
I
CHARGE
setbyISET
No
EndCharge
Flash CHG
No
t
FASTCHARGE
Elapsed?
ChargeDone
CHG =Hi-Z
V
BAT
< V
RCH
No
BatteryDetected?
RunBatteryDetection
Yes
Yes
No
bq24072 , bq24073 , bq24074 , bq24075 , bq24079
SLUS810K –SEPTEMBER 2008–REVISED MARCH 2015 www.ti.com
Feature Description (continued)
Figure 22. Battery Charging Flow Diagram
22 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: bq24072 bq24073 bq24074 bq24075 bq24079