BQ24618 Datasheet, PDF (10/36 Pages) Texas Instruments – Stand-Alone USB-Friendly Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger

bq24618
SLUSA55 – OCTOBER 2010
TYPICAL CHARACTERISTICS
Table 1. Table of Graphs
REF REGN and PG Power Up (CE=1)
Charge Enable
Current Soft-Start (CE=1)
Charge Disable
Continuous Conduction Mode Switching Waveforms
Cycle-by-Cycle Synchronous to Nonsynchronous
100% Duty and Refresh Pulse
Transient System Load (DPM)
Battery Insertion
Battery to Ground Short Protection
Battery to ground Short Transition
Efficiency vs Output Current
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Figure
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
VCC
/PG
VREF
REGN
t − Time = 4 ms/div
Figure 3. REF REGN and PG Power Up (CE=1)
PH
LODRV
IBAT
CE
t − Time = 4 ms/div
Figure 5. Current Soft-Start (CE=1)
PH
LODRV
IBAT
CE
t − Time = 200 ms/div
Figure 4. Charge Enable
PH
LODRV
IL
CE
t − Time = 2 μs/div
Figure 6. Charge Disable
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