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BQ24705 Datasheet(PDF) 9 Page - Texas Instruments |
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BQ24705 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 32 page  TYPICAL CHARACTERISTICS -0.20 -0.10 0 0.10 0.20 0.30 0.40 0.50 0 10 20 30 40 50 VREF-LoadCurrent-mA PVCC=10V PVCC=20V -3 -2.50 -2 -1.50 -1 -0.50 0 0 10 20 30 40 50 60 70 80 REGN-LoadCurrent-mA PVCC=10V PVCC=20V bq24705 www.ti.com............................................................................................................................................... SLUS779B – DECEMBER 2007 – REVISED MARCH 2009 Table of Graphs(1) Y X Figure VREF Load and Line Regulation vs Load Current Figure 4 REGN Load and Line Regulation vs Load Current Figure 5 BAT Voltage vs VADJ/VREF Ratio Figure 6 Charge Current vs SRSET/VREF Ratio Figure 7 Input Current vs ACSET/VREF Ratio Figure 8 BAT Voltage Regulation Accuracy vs Charge Current Figure 9 BAT Voltage Regulation Accuracy Figure 10 Charge Current Regulation Accuracy Figure 11 Input Current Regulation (DPM) Accuracy Figure 12 VIADAPT Input Current Sense Amplifier Accuracy Figure 13 Input Regulation Current (DPM), and Charge Current vs System Current Figure 14 Transient System Load (DPM) Response Figure 15 Charge Current Regulation vs BAT Voltage Figure 16 Efficiency vs Battery Charge Current Figure 17 Battery Removal (from Constant Current Mode) Figure 18 REF and REGN Startup Figure 19 Charger on Adapter Removal Figure 20 Charge Enable / Disable and Current Soft-Start Figure 21 Nonsynchronous to Synchronous Transition Figure 22 Synchronous to Nonsynchronous Transition Figure 23 Near 100% Duty Cycle Bootstrap Recharge Pulse Figure 24 Battery Shorted Charger Response, Over Current Protection (OCP) and Charge Current Regulation Figure 25 Continuous Conduction Mode (CCM) Switching Waveforms Figure 26 Discontinuous Conduction Mode (DCM) Switching Waveforms Figure 28 DPMDET Response with Transient System Load Figure 27 (1) Test results based on Figure 3 application schematic. VIN = 20 V, VBAT = 3-cell Li-Ion, ICHG = 3 A, IADAPTER_LIMIT = 4 A, TA = 25°C, unless otherwise specified. VREF LOAD AND LINE REGULATION REGN LOAD AND LINE REGULATION vs vs Load Current LOAD CURRENT Figure 4. Figure 5. Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s) :bq24705 Not Recommended for New Designs |
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