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LTC4077 датащи(PDF) 6 Page - Linear Technology |
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LTC4077 датащи(HTML) 6 Page - Linear Technology |
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6 / 16 page ![]() LTC4077 6 4077fa HPWR Pin Pulldown Resistance vs Temperature Undervoltage Lockout Threshold vs Temperature Battery Drain Current vs Temperature Recharge Threshold vs Temperature TYPICAL PERFOR A CE CHARACTERISTICS Charge Current at Turn-On and Turn-Off USBIN Shutdown Current vs Temperature EN Pin Pulldown Resistance vs Temperature TEMPERATURE ( °C) –50 –25 0 50 25 75 100 4.30 4.25 4.20 4.15 4.10 4.05 4.00 3.95 3.90 4077 G20 DCIN UVLO USBIN UVLO TEMPERATURE ( °C) –50 –25 0 50 25 75 100 4.16 4.14 4.12 4.10 4.08 4.06 4.04 VDCIN = VUSBIN = 4.3V VDCIN = VUSBIN = 8V 4077 G21 TEMPERATURE ( °C) –50 25 75 –25 0 50 100 45 40 35 30 25 20 15 10 5 0 4077 G17 VUSBIN = 8V VUSBIN = 5V VUSBIN = 4.3V EN = 5V TEMPERATURE ( °C) –50 25 75 –25 0 50 100 4077 G18 2.8 2.6 2.4 2.2 2.0 1.8 1.6 4077 G19 TEMPERATURE ( °C) –50 25 75 –25 0 50 100 2.8 2.6 2.4 2.2 2.0 1.8 1.6 4077 G22 TEMPERATURE ( °C) –50 5 4 3 2 1 0 –1 –25 0 25 50 75 100 VBAT = 4.2V VDCIN, VUSBIN (OPEN) 4077 G23 VDCIN = 5V RIDC = 1.25k 100 s/DIV IBAT 500mA/DIV EN 5V/DIV |
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