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| BQ24650 Datasheet, PDF (8/33 Pages) Texas Instruments – Synchronous Switch-Mode Battery Charge Controller for Solar Power With Maximum Power Point Tracking | |||
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bq24650
SLUSA75 â JULY 2010
TYPICAL CHARACTERISTICS (continued)
VCC = 25V, bq24650 Application Circuit, TA = 25°C unless otherwise noted
HIDRV
20V/div
PH
20V/div
HIDRV
20V/div
PH
20V/div
www.ti.com
LODRV
5V/div
IL
1A/div
400 ms/div
Figure 8. Switching at 100% Duty Cycle
LODRV
5V/div
IL
1A/div
100 ns/div
Figure 9. Recharge the BTST-PH Capacitor
VIN
5V/div
MPPT Regulation Point
IBAT
0.5A/div
10 ms/div
Figure 10. MPPT Regulation During Soft Start
VIN
20V/div
VBAT
5V/div
PH
20V/div
IL
1A/div
1 s/div
Figure 11. Battery Insertion and Removal
VIN
20V/div
VBAT
5V/div
PH
20V/div
VIN
20V/div
VBAT
5V/div
PH
20V/div
IL
1A/div
400 ms/div
Figure 12. Short Battery Response
IL
1A/div
10 ms/div
Figure 13. Charge Reset During Battery Short
8
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