BQ24630 Datasheet, PDF (8/33 Pages) Texas Instruments – Stand-Alone Synchronous Switch-Mode Lithium Phosphate Battery Charger with System Power Selector and Low Iq

bq24630
SLUS894 – JANUARY 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
Input ACOV Transition
Input ACOV Resume Normal Transition
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Figure 15
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
PH
LODRV
LDRV
IBAT
CE
t − Time = 4 ms/div
Figure 4. Current Soft-Start (CE=1)
IL
CE
t − Time = 4 μs/div
Figure 5. Charge Disable
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