BQ25071-Q1 Datasheet, PDF (17/22 Pages) Texas Instruments – Automotive Qualified

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9.2.3 Application Curves
bq25071-Q1
SLUSCD6 – APRIL 2016
V_IN
V_(LDO)
I_OUT
V_(CHG)
V_(CTRL) = 0 V
20ms/div
5V/div
5V/div
V_(CTRL)
V_(LDO)
200mA/div
I_OUT
2V/div
V_(CHG)
10ms/div
5V/div
5V/div
200mA/div
2V/div
Figure 12. Adapter Plug-In With Battery Connected
Figure 13. Charger Enable Using EN
V_(CTRL)
V_(LDO)
I_OUT
V_(CHG)
400μs/div
5V/div
5V/div
200mA/div
V_IN
V_(LDO)
2V/div
I_OUT
V_(CHG)
V_IN = 5 V to 12 V
40μs/div
5V/div
5V/div
1A/div
2V/div
Figure 14. Charger Disable Using EN
Figure 15. OVP Fault
9.3 System Examples
USB or Adapter
VBUS
GND
C3
D+
1 mF
D-
C4
0.1mF
R2
1 kW
R1
D1 _0.1mF
CHG
IN
OUT
C2
1 mF
C2
22 mF
bq25071-Q1
U1
EN
BAT
TS
ISET
R3
24.3kW
R4
11.3kW
GND
LDO
PWRPD
C5
0.1mF
TEMP
PACK +
PACK -
Copyright © 2016, Texas Instruments Incorporated
Figure 16. Schematic
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: bq25071-Q1
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