BQ25504 Datasheet, PDF (12/24 Pages) Texas Instruments – Ultra Low Power Boost Converter with Battery Management for Energy Harvester Applications

bq25504
SLUSAH0 – OCTOBER 2011
TYPICAL CHARACTERISTICS (continued)
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VIN = 1 V, RIN = 20 W, VBAT = 2.5 V, RBAT = 100 mW
VIN = 1 V, RIN = 20 W, VBAT = 3.1 V, RBAT = 100 mW
Figure 18. Example of PFM Switching Converter Waveform
Figure 19. Example of Output Ripple Voltage During
Operation at O V Setting
VIN = 1 V, RIN = 20 W, VBAT = 1.9 V, RBAT = 100 mW
VIN = 1 V, RIN = 20 W, VBAT = 3 V, RBAT = 100 mW
Figure 20. Example of Startup When VBAT is Held
Below UV Setting
Figure 21. Example of Sampling Time for MPPT Operation
12
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