BQ24075-Q1 Datasheet, PDF (9/36 Pages) Texas Instruments – 1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC

bq24075-Q1
www.ti.com
SLUSAU3B – FEBRUARY 2012 – REVISED MARCH 2012
TYPICAL CHARACTERISTICS
V_IN = 6V, EN1=1, EN2=0, T_A = 25°C, unless otherwise noted.
ADAPTER PLUG-IN
BATTERY CONNECTED
R_LOAD = 10Ω
BATTERY DETECTION
BATTERY INSERTED
BATTERY DETECTION
BATTERY REMOVED
V_IN
V_OUT
4.4 V
V_BAT
3.6 V
V_PGOOD
5 V/div
V_CHG
500 mV/div
I_BAT
5 V/div
Charging Initiated
5 V/div
V_CHG
1 A/div
I_BAT
5 V/div
1 A/div
I_BAT
500 mA/div
V_BAT
2 V/div
Battery Inserted
V_BAT
Battery
Removed
2 V/div
4 ms/div
Battery Detection Mode
Battery Detection Mode
400 ms/div
400 ms/div
Figure 1.
Figure 2.
Figure 3.
ENTERING AND EXITING DPPM
MODE
R_LOAD = 20Ω to 9Ω
CHARGER ON/OF USING CE
I_OUT
I_BAT
V_OUT
4.4 V
V_CE
500 mA/div
V_CHG
500 mA/div
V_BAT
3.6 V
200 mV/div
Mandatory Precharge
I_BAT
5 V/div
5 V/div
1 V/div
V_IN
V_OUT
4.4 V
V_BAT
4.2 V
500 mA/div
I_BAT
OVP FAULT
V_IN = 6V to 15V
R_LOAD = 10Ω
10 V/div
500 mV/div
1 A/div
400 ms/div
Figure 4.
10 ms/div
Figure 5.
40 ms/div
Figure 6.
SYSTEM ON/OFF WITH INPUT
CONNECTED
V_IN = 6V
bq24075
V_SYSOFF
5 V/div
SYSTEM ON/OFF WITH INPUT NOT
CONNECTED
V_IN = 0V
bq24075
V_SYSOFF
5 V/div
V_OUT
5.5 V
V_BAT
4V
I_BAT
400 ms/div
2 V/div
V_BAT
4V
V_OUT
500 mA/div
Battery Powering
System
I_BAT
System Power Off
4 ms/div
2 V/div
500 mA/div
Figure 7.
Figure 8.
THERMAL REGULATION
600
500
400
300
200
100
0
120 125 130 135 140 145
Temperature - ^oC
Figure 9.
Copyright © 2012, Texas Instruments Incorporated
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