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LTC4057-4.2 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4057-4.2 Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page LTC4057-4.2 4 4057f TYPICAL PERFOR A CE CHARACTERISTICS SHDN Threshold Voltage vs Temperature and Supply Voltage Trickle Charge Current vs Temperature Trickle Charge Current vs Supply Voltage TEMPERATURE ( °C) –50 –25 0 25 50 75 100 4057 G10 3.000 2.975 2.950 2.925 2.900 2.875 2.850 2.825 2.800 VBAT (V) 2.7 3.0 3.3 3.9 3.6 4.2 4.5 4057 G11 600 500 400 300 200 100 0 VCC (V) 4.0 600 500 400 300 200 100 0 4.5 5.0 5.5 6.0 4057 G12 6.5 7.0 VBAT = 4V TA = 25°C θJA = 125°C/W VCC = 5V θJA = 125°C/W RPROG = 2k VCC = 5V RPROG = 10k RPROG = 10k RPROG = 2k TA = 40°C TA = 25°C TA = 0°C TEMPERATURE ( °C) –50 1.0 0.9 0.8 0.7 0.6 0.5 0.4 –25 025 50 4057 G07 75 100 TEMPERATURE ( °C) –50 –25 0 25 50 75 100 60 50 40 30 20 10 0 4057 G08 VCC (V) 4.0 4.5 5.0 5.5 6.0 4057 G09 6.5 7.0 VCC = 5V VBAT = 2.5V RPROG = 2k RPROG = 10k VCC = 6.5V VCC = 4.2V 60 50 40 30 20 10 0 VBAT = 2.5V TA = 25°C RPROG = 2k RPROG = 10k 600 500 400 300 200 100 0 AMBIENT TEMPERATURE ( °C) –50 25 75 4057 G13 –25 0 50 100 125 TEMPERATURE ( °C) –50 700 650 600 550 500 450 400 25 75 4057 G14 –25 0 50 100 125 VCC = 5V VBAT = 4V θJA = 80°C/W VCC = 4.2V VBAT = 4V RPROG = 2k RPROG = 10k RPROG = 2k ONSET OF THERMAL REGULATION Trickle Charge Threshold vs Temperature Charge Current vs Battery Voltage Charge Current vs Supply Voltage Charge Current vs Ambient Temperature Power FET “ON” Resistance vs Temperature |
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