BQ24161B_15 Datasheet, PDF (37/52 Pages) Texas Instruments – bq2416xx 2.5A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface

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bq24160, bq24160A, bq24161
bq24161B, bq24163, bq24168
SLUSAO0F – NOVEMBER 2011 – REVISED JULY 2014
Termination Enabled
Figure 27. Battery Pull During Charging
MINSYS Operation
USB1500
200mA-1400mA Load Step on SYS
Figure 28. Load Transient into DPPM
V_SYS
V_BAT
1 V/div
I_USB
500 mA/div
1 A/div
I_BAT
10 ms/div
MINSYS Operation
USB500
200mA - 1400mA Load Step on SYS
Figure 29. Load Transient into Supplement Mode
100
90
80
70
60
50
40
30
20
10
0
0.1
Charge Disabled
SYS loaded
V_BATREG = 3.6V
IN2500 ILIM
1
System Current (A)
V_IN = 5 V
V_IN = 7 V
V_IN = 9 V
3
G001
Figure 31. IN Efficiency
V_USB
V_STAT/INT
V_SW
I_BAT
4 ms/div
5 V/div
5 V/div
5 V/div
500 mA/div
Figure 30. OVP Fault USB Input
100
90
80
70
60
50
40
30
20
10
0
0.1
Charge Disabled
SYS loaded
V_BATREG = 3.6V
USB1500 ILIM
System Current (A)
V_USB = 5 V
V_USB = 6 V
1
2
G002
Figure 32. USB Efficiency
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