BQ24747 Datasheet, PDF (14/36 Pages) Texas Instruments – SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator and Charge Enable Pin

bq24747
SLUS988 – OCTOBER 2009 ............................................................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS (continued)
DEAD-TIME BETWEEN
UGATE OFF AND LGATE ON
DEAD-TIME BETWEEN
LGATE OFF AND UGATE ON
I_(IND)
UGATE
UGATE-PH
PH
LGATE
t − Time = 40 ns/div
Figure 24.
NEAR 100% DUTY CYCLE BOOTSTRAP RECHARGE PULSE
UGATE
PHASE
I_(IND)
UGATE-PH
UGATE
PH
LGATE
t − Time = 40 ns/div
Figure 25.
BATTERY SHORTED CHARGER RESPONSE,
OVERCURRENT PROTECTION (OCP) AND
CHARGE CURRENT REGULATION
I_(IND)
LGATE
t − Time = 400 ms/div
Figure 26.
CONTINUOUS CONDUCTION MODE (CCM)
SWITCHING WAVEFORMS, ICHARGE = 3986 mA
I_(IND)
UGATE
UGATE-PH
PH
LGATE
t − Time = 1 ms/div
Figure 28.
t - Time = 1 ms/div
Figure 27.
DISCONTINUOUS CONDUCTION MODE (DCM)
SWITCHING WAVEFORMS, ICHARGE = 256 mA
I_(IND)
UGATE
UGATE-PH
PH
LGATE
t − Time = 1 ms/div
Figure 29.
14
Submit Documentation Feedback
Product Folder Link(s) :bq24747
Copyright © 2009, Texas Instruments Incorporated