BQ24232H_15 Datasheet, PDF (28/42 Pages) Texas Instruments – bq2423xx USB-Friendly Lithium-Ion Battery Charger and Power-Path Management IC

bq24230H, bq24232H
SLUSBI8A – JANUARY 2014 – REVISED DECEMBER 2014
Typical Application (continued)
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NOTE
If designed with high input voltage sources (bad adapters or wrong adapters), the
capacitor needs to be rated appropriately. Ceramic capacitors are tested to 2x their rated
values so a 16-V capacitor may be adequate for a 30-V transient (verify tested rating with
capacitor manufacturer).
10.2.2.5 Sleep Mode
After entering sleep mode for >20 ms, the internal FET connection between the IN and OUT pin is disabled and
pulling the input to ground does not discharge the battery, other than the leakage on the BAT pin. If the user has
a full 1000-mAHr battery and the leakage is 10 μA, then it takes 1000 mAHr/10 μA = 100000 hours (11.4 years)
to discharge the battery. The self-discharge of the battery is typically five times higher.
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10.2.3 Application Curves
Figure 24. Adapter Plug-In With Battery Connected
R_LOAD = 25Ω
Figure 25. Battery Detection -- Insertion
Figure 26. Battery Detection -- Removal
Figure 27. Entering and Exiting DPPM Mode
R_LOAD = 25 Ω to 9 Ω
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