BQ24620 Datasheet, PDF (8/30 Pages) Texas Instruments – Stand-Alone Synchronous Switch-Mode Lithium Phosphate Battery Charger with Low Iq

bq24620
SLUS893 – MARCH 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
Battery Insertion
Battery to Ground Short Protection
Efficiency vs Output Current
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Figure
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
VCC
/PG
VREF
REGN
t − Time = 4 ms/div
Figure 2. REF REGN and PG Power Up (CE=1)
PH
LODRV
IBAT
CE
t − Time = 200 ms/div
Figure 3. Charge Enable
PH
LODRV
IBAT
CE
t − Time = 4 ms/div
Figure 4. Current Soft-Start (CE=1)
PH
LDRV
IL
CE
t − Time = 4 μs/div
Figure 5. Charge Disable
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