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| BQ24650 Datasheet, PDF (7/33 Pages) Texas Instruments – Synchronous Switch-Mode Battery Charge Controller for Solar Power With Maximum Power Point Tracking | |||
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www.ti.com
TYPICAL CHARACTERISTICS
VCC = 25V, bq24650 Application Circuit, TA = 25°C unless otherwise noted
bq24650
SLUSA75 â JULY 2010
VCC
10V/div
VREF
2V/div
REGN
5V/div
STAT1
20V/div
800 ms/div
Figure 2. Power Up on VCC
MPPSET
1V/div
LODRV
5V/div
PH
20V/div
IBAT
1A/div
400 ms/div
Figure 3. Charge Start on MPPSET
MPPSET
1V/div
LODRV
5V/div
PH
20V/div
IBAT
1A/div
4 ms/div
Figure 4. Charge Soft Start on MPPSET
MPPSET
1V/div
LODRV
5V/div
PH
20V/div
IBAT
1A/div
10 ms/div
Figure 5. Charge Stop on MPPSET
HIDRV
20V/div
PH
20V/div
LODRV
5V/div
IL
1A/div
100 ns/div
Figure 6. Switching in Continuous Conduction Mode
HIDRV
20V/div
PH
20V/div
LODRV
5V/div
IL
1A/div
200 ns/div
Figure 7. Switching in Discontinuous Conduction Mode
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq24650
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