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MAX8903EETI Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX8903EETI Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 30 page 2A 1-Cell Li+ DC-DC Chargers for USB and Adapter Power _______________________________________________________________________________________ 7 MAX8903G SWITCHING FREQUENCY vs. VDC DC VOLTAGE (V) 14 12 6 8 10 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 416 VBAT = 3V VBAT = 4V RISET = 1.2k I VCEN = 0V SYS EFFICIENCY vs. SYS OUTPUT CURRENT SYS OUTPUT CURRENT (mA) 1000 100 10 10 20 30 40 50 60 70 80 90 100 0 110000 VCEN = 1V VSYS = 4.4V VDC = 4.5V VDC = 6V VDC = 11V VDC = 16V MAX8903G SYS EFFICIENCY vs. SYS OUTPUT CURRENT SYS OUTPUT CURRENT (mA) 1000 100 10 10 20 30 40 50 60 70 80 90 100 0 1 10,000 VDC = 16V VDC = 12V VDC = 9V VDC = 6V VCEN = 1 0 0.4 0.2 0.8 0.6 1.4 1.2 1.0 1.6 02 13 4 5 6 7 USB SUPPLY CURRENT vs. USB VOLTAGE USB VOLTAGE (V) CHARGER ENABLED CHARGER DISABLED 0 40 20 80 60 120 100 140 02 3 1 4 567 USB SUPPLY CURRENT vs. USB VOLTAGE (SUSPEND) USB VOLTAGE (V) USB SUSPEND 0 20 10 40 30 70 60 50 80 04 5 6 3 2 1 BATTERY LEAKAGE CURRENT vs. BATTERY VOLTAGE BATTERY VOLTAGE (V) NO DC OR USB INPUT 0 20 10 40 30 70 80 60 50 90 -40 35 60 -15 10 85 BATTERY LEAKAGE CURRENT vs. AMBIENT TEMPERATURE TEMPERATURE ( °C) NO DC OR USB INPUT CHARGE CURRENT vs. BATTERY VOLTAGE—USB MODE BATTERY VOLTAGE (V) 4.0 3.5 3.0 2.5 2.0 50 100 150 200 250 300 350 400 450 500 0 1.5 4.5 CHARGE ENABLED IBAT SET TO 1.5A MAX8903D VBAT RISING VIUSB = VUSB VIUSB = 0V CHARGE CURRENT vs. BATTERY VOLTAGE—DC MODE BATTERY VOLTAGE (V) 4.0 3.5 3.0 2.5 2.0 200 400 600 800 1000 1200 0 1.5 4.5 CHARGER ENABLED IBAT SET TO 1A IDC SET TO 2A MAX8903A/MAX8903C VBAT RISING Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) |
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