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| BQ24232HA Datasheet, PDF (16/36 Pages) Texas Instruments – USB-Friendly Lithium-Ion Battery Charger | |||
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bq24232HA
SLUSCG4 â MAY 2016
Feature Description (continued)
500 mA
400 mA
250 mA
0 mA
400 mA
150 mA
0 mA
150 mA
0 mA
-100 mA
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4 .4 V
4 .3 V
~ 3.6V
DPM loop active
Supplement
Mode
Figure 11. bq24232HA DPPM and Battery Supplement Modes
(VOREG = 4.4 V, VBAT = 3.6 V, ILIM= 400 mA, ICHG = 150 mA)
7.3.3.2 Input Source not Connected
When no source is connected to the IN input, OUT is powered strictly from the battery. During this mode, the
current into OUT is unregulated, similar to Battery Supplement Mode; however, the short-circuit circuitry is active.
If the OUT voltage falls below the BAT voltage by 250 mV for longer than tDGL(SC2), OUT is turned off. The short-
circuit recovery timer then starts counting. After tREC(SC2), OUT turns on and attempts to restart. If the short-circuit
remains, OUT is turned off and the counter restarts. This ON/OFF cycle continues until the overload condition is
removed.
16
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