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| BQ24040_16 Datasheet, PDF (25/38 Pages) Texas Instruments – Single Cell Li-Ion and Li-Pol Battery Charger With Auto Start | |||
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www.ti.com
Typical Applications (continued)
Vpg 2V/div
Vchg
2V/div
Vts
Viset
2V/div
500mV/div
t - time - 50ms/div
.
Figure 22. TS Enable and Disable
Vin
2V/div
Vout
500mV/div
Viset 1V/div
Vts
2V/div
t - time - 5ms/div
bq24040, bq24041, bq24045
SLUS941F â SEPTEMBER 2009 â REVISED MARCH 2015
Vpg 5V/div
Vchg
2V/div
Vout
2V/div
Battery Detect Mode
Vin
5V/div
t - time - 20ms/div
Fixed 10k⦠resistor, between TS and GND.
Figure 23. Hot Plug Source w/No Battery â Battery
Detection
Vout
Vchg
Viset
1 Battery Detect Cycle
1V/div
5V/div
1V/div
Vts
1V/div
Entered TTDM
t - time - 10ms/div
Figure 24. Battery Removal â GND Removed 1st, 42 â¦
Load
Vout
1V/div
Vchg
5V/div
Battery Declared Absent
Viset
1V/div
V_0.1 W_OUT
100mV/div
t - time - 20ms/div
Continuous battery detection when not in TTDM
Figure 26. Battery Removal with fixed TS = 0.5V
Figure 25. Battery Removal with OUT and
TS Disconnect 1st, With 100 ⦠Load
Vout 1V/div
Vchg
5V/div
Viset
1V/div
Battery
Threshold
Reached
V_0.1 W_OUT
100mV/div
t - time - 500ms/div
CH4: IOUT (1A/Div)
Battery voltage swept from 0V to 4.25V to 3.9V.
Figure 27. Battery Charge Profile
Copyright © 2009â2015, Texas Instruments Incorporated
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