Datasheet MAX1811 (Maxim) - 4

MAX1811 USB-Powered Li+ Charger
Typical Operating Characteristics (continued)
(CHG unconnected, CBATT = 2.2μF, TA = +25°C, unless otherwise noted.)
CHARGE CURRENT CHARGE CURENT BATTERY REGULATION VOLTAGE vs. BATTERY VOLTAGE vs. INPUT VOLTAGE vs. TEMPERATURE
500 500 4.22 450 V V IN = VEN = VSELV = 5.5V 450 BATT = 4.1V VSELV = VIN 400 4.20 V MAX1811 toc04 400 MAX1811 toc05 SELV = VIN MAX1811 toc06 350 VSELI = VIN 350 4.18 300 300 V VIN = VSELI = VEN = 4.5V 250 SELI = VIN (mA) (mA) (V) 4.16 IBATT = 0 200 250 I BATT I BATT VSELI = 0 V BATT 4.14 150 VSELI = 0 200 100 150 4.12 50 100 4.10 0 50 VSELV = 0 -50 0 4.08 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 1 2 3 4 5 6 7 -40 -15 10 35 60 85 VBATT (V) VIN (V) TEMPERATURE (°C)
CHARGE CURRENT CHARGE CURRENT vs. TEMPERATURE vs. TEMPERATURE WITH THERMAL REGULATION
600 600 VIN = VSELV = VEN = 5.5V, VBATT = 2.7V VIN = VSELV = VEN = 6.5V, VBATT = 2.7V 500 500 MAX1811 toc07 MAX1811 toc08 VSELI = VIN 400 VSELI = VIN 400 (mA) 300 (mA) 300 I BATT I BATT 200 200 THERMAL CONTROL V LOOP IN OPERATION SELI = 0 VSELI = 0 100 100 0 0 -40 -15 10 35 60 85 -40 -15 10 35 60 85 TEMPERATURE (°C) TEMPERATURE (°C) www.maximintegrated.com Maxim Integrated │ 4