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LTC4088EDE-2-PBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC4088EDE-2-PBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 24 page LTC4088-1/LTC4088-2 5 40881fb PowerPath Switching Regulator Efficiency vs Output Current Battery Charging Efficiency vs Battery Voltage with No External Load (PBAT/PBUS) VBUS Current vs VBUS Voltage (Suspend) Ideal Diode V-I Characteristics Ideal Diode Resistance vs Battery Voltage Output Voltage vs Output Current (Battery Charger Disabled) USB Limited Battery Charge Current vs Battery Voltage Battery Drain Current vs Battery Voltage TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted. FORWARD VOLTAGE (V) 0 0.6 0.8 1.0 0.16 408812 G01 0.4 0.2 0 0.04 0.08 0.12 0.20 INTERNAL IDEAL DIODE WITH SUPPLEMENTAL EXTERNAL VISHAY Si2333 PMOS INTERNAL IDEAL DIODE ONLY VBUS = 0V VBUS = 5V BATTERY VOLTAGE (V) 2.7 0.15 0.20 0.25 3.9 408812 G02 0.10 0.05 0 3.0 3.3 3.6 4.2 INTERNAL IDEAL DIODE WITH SUPPLEMENTAL EXTERNAL VISHAY Si2333 PMOS INTERNAL IDEAL DIODE OUTPUT CURRENT (mA) 0 4.00 4.25 4.50 800 408812 G03 3.75 3.50 3.25 200 400 600 1000 VBAT = 4V VBAT = 3.4V VBUS = 5V 5x MODE BATTERY VOLTAGE (V) 2.7 500 600 700 3.9 408812 G04 400 300 3.0 3.3 3.6 4.2 200 100 0 VBUS = 5V RPROG = 1k RCLPROG = 2.94k 5x USB SETTING, BATTERY CHARGER SET FOR 1A USB Limited Battery Charge Current vs Battery Voltage BATTERY VOLTAGE (V) 2.7 0 25 50 75 100 125 150 3.0 3.3 3.6 3.9 408812 G05 4.2 VBUS = 5V RPROG = 1k RCLPROG = 2.94k 1x USB SETTING, BATTERY CHARGER SET FOR 1A BATTERY VOLTAGE (V) 2.7 15 20 25 3.9 408812 G06 10 5 0 3.0 3.3 3.6 4.2 VBUS = 0V VBUS = 5V (SUSPEND MODE) IOUT = 0µA OUTPUT CURRENT (A) 0.01 40 50 60 70 80 100 0.1 1 408812 G07 90 5x, 10x MODE 1x MODE VBAT = 3.8V BATTERY VOLTAGE (V) 2.7 86 88 90 3.9 408812 G08 84 82 80 3.0 3.3 3.6 4.2 RCLPROG = 2.94k RPROG = 1k IOUT = 0mA 5x CHARGING EFFICIENCY 1x CHARGING EFFICIENCY VBUS VOLTAGE (V) 1 30 40 50 5 408812 G09 20 10 0 2 3 4 6 IOUT = 0mA |
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