Datasheet

10V/div
500mV/div
1 A/div
40 s/divm
V
IN
I
BAT
V
4.2V
BAT
V
4.4V
OUT
V
CE
I
BAT
V
3.6V
BAT
V
CHG
500mA/div
1V/div
5V/div
5V/div
10ms/div
MandatoryPrecharge
5V/div
2V/div
400 s/divm
500mA/div
V
SYSOFF
I
BAT
V
4V
BAT
V
5.5V
OUT
I
OUT
I
BAT
200mV/div
400 s/divm
V
4.4V
OUT
500mA/div
500mA/div
I
OUT
I
BAT
V
3.8V
BAT
500mA/div
500mV/div
1ms/div
V
4.4V
OUT
1 A/div
SupplementMode
I
OUT
I
BAT
V
3.6V
BAT
500mA/div
200mV/div
1ms/div
V
3.825V
OUT
1 A/div
SupplementMode
TrackingtoV +225mV
BAT
V
CHG
I
BAT
2V/div
400 ms/div
V
BAT
1 A/div
5V/div
ChargingInitiated
BatteryDetectionMode
BatteryInserted
V
CHG
I
BAT
2V/div
400ms/div
V
BAT
1 A/div
5V/div
Battery
Removed
BatteryDetectionMode
V
IN
500mV/div
4ms/div
5V/div
I
BAT
V
PGOOD
5V/div
V
4.4V
OUT
V
3.6V
BAT
500mA/div
bq24072, bq24073
bq24074, bq24075, bq24079
www.ti.com SLUS810I –SEPTEMBER 2008–REVISED JANUARY 2014
TYPICAL CHARACTERISTICS
V
IN
= 6V, EN1=1, EN2=0, bq24073 application circuit, T
A
= 25°C, unless otherwise noted.
ADAPTER PLUG-IN
BATTERY CONNECTED BATTERY DETECTION BATTERY DETECTION
R
LOAD
= 10Ω BATTERY INSERTED BATTERY REMOVED
Figure 1. Figure 2. Figure 3.
ENTERING AND EXITING BATTERY ENTERING AND EXITING BATTERY
SUPPLEMENT MODE SUPPLEMENT MODE
ENTERING AND EXITING DPPM
MODE R
LOAD
= 25ΩTO 4.5Ω R
LOAD
= 20ΩTO 4.5Ω
R
LOAD
= 20Ω to 9Ω bq24074 bq24072
Figure 4. Figure 5. Figure 6.
SYSTEM ON/OFF WITH INPUT
OVP FAULT CONNECTED
V
IN
= 6V to 15V V
IN
= 6V
CHARGER ON/OF USING CE R
LOAD
= 10Ω bq24075, bq24079
Figure 7. Figure 8. Figure 9.
Copyright © 2008–2014, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Links: bq24072 bq24073 bq24074 bq24075 bq24079