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LTC4012CUF-1PBF Datasheet(PDF) 6 Page - Linear Technology |
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LTC4012CUF-1PBF Datasheet(HTML) 6 Page - Linear Technology |
6 / 28 page LTC4012/ LTC4012-1/LTC4012-2 6 4012f Battery Load Dump LOAD STATE TIME (1ms/DIV) CLP = 20V VOUT = 12.3V 4012 G06 DISCONNECT RECONNECT 3A 2A 12.1V 1A 1A TYPICAL PERFORMANCE CHARACTERISTICS Efficiency at DCIN = 20V, BAT = 8V VFB Line Regulation CHARGE CURRENT (A) 0 80 85 90 100 100 1000 10000 0.5 1 1.5 2 4012 G01 2.5 3 95 POWER LOSS EFFICIENCY RSENSE = 33mΩ RIN = 3.01k Efficiency at DCIN = 20V, BAT = 12V CHARGE CURRENT (A) 0 80 85 90 100 100 1000 10000 0.5 1 1.5 2 4012 G02 2.5 3 95 EFFICIENCY POWER LOSS RSENSE = 33mΩ RIN = 3.01k Efficiency at DCIN = 20V, BAT = 16V CHARGE CURRENT (A) 0 80 85 90 100 100 1000 10000 0.5 1 1.5 2 4012 G03 2.5 3 95 EFFICIENCY POWER LOSS RSENSE = 33mΩ RIN = 3.01k CLP PIN VOLTAGE (V) 5 0.02 0.06 0.10 25 4012 G04 –0.02 –0.06 0 0.04 0.08 –0.04 –0.08 –0.10 10 15 20 30 LTC4012 TEST CIRCUIT BATTERY VOLTAGE (V) 0 75 100 150 175 200 10 20 25 300 4012 G05 125 515 225 250 275 CLP = BAT + 3V (CLP ≥ 6V) FBDIV Pin RON vs Battery Voltage (TA = 25°C unless otherwise noted. L = IHLP-2525 6.8μH) Charge Current Accuracy BATTERY VOLTAGE (V) 0 –6 –4 –3 –2 10 8 20 24 22 2 4012 G07 –5 6 4 214 12 16 18 –1 0 1 DCIN = 12V RPROG = 26.7k DCIN = 24V RPROG = 35.7k RSENSE = 33mΩ RIN = 3.01k |
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