Data Sheet

IN
VSS
BAT
DC+
GND
Adaptor
bq24074
CE
OUT
TMR
EN1
EN2
TS
TEMP
PACK+
PACK-
C1
1 Fm
C3
4.7 Fm
C2
4.7 Fm
R4 R5
1.5kW
R3
1.13kW
SYSTEM
1.5kW
IN
VSS
BAT
TS
ISET
PGOOD
CHG
ITERM
ILM
R1
4.12kW
R2
1.18kW
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
5V/div
500mA/div
4ms/div
2V/div
V
SYSOFF
I
BAT
V
4V
BAT
V
OUT
BatteryPowering
System
SystemPowerOff
bq24072 , bq24073 , bq24074 , bq24075 , bq24079
www.ti.com SLUS810K –SEPTEMBER 2008–REVISED MARCH 2015
Typical Application (continued)
Figure 40. System ON/OFF With Input Not Connected
Figure 39. System ON/OFF With Input Connected
V
IN
= 0 V
V
IN
= 6 V
bq24075, bq24079
bq24075, bq24079
10.3 System Examples
10.3.1 Standalone Charger
V
IN
= UVLO to V
OVP
, I
FASTCHG
= 800 mA, I
IN(MAX)
= 1.3 A, I
TERM
= 110 mA, Battery Temperature Charge
Range = 0°C to 50°C, Safety Timers disabled
Figure 41. Using bq24074 in a Standalone Charger Application
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