BQ24705 Datasheet, PDF (13/30 Pages) Texas Instruments – Host-Controlled Multi-Chemistry Battery Charger With Low Input Power Detect

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NEAR 100% DUTY CYCLE BOOTSTRAP RECHARGE
PULSE
bq24705
SLUS779 – DECEMBER 2007
BATTERY SHORTED CHARGER RESPONSE,
OVERCURRENT PROTECTION (OCP) AND CHARGE
CURRENT REGULATION
Figure 24.
CONTINUOUS CONDUCTION MODE (CCM) SWITCHING
WAVEFORMS
PH
HIDRV
Figure 25.
DISCONTINUOUS CONDUCTION MODE (DCM)
SWITCHING WAVEFORMS
PH
HIDRV
LODRV
I_L
LODRV
I_L
t − Time = 400 ns/div
Figure 26.
t − Time = 400 ns/div
Figure 27.
DPMDET RESPONSE WITH TRANSIENT SYSTEM LOAD
DPMDET
I_BAT
I_sys
I_IN
t - Time = 20 ms/div
Figure 28.
Copyright © 2007, Texas Instruments Incorporated
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