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LTC4244IGN Folha de dados(PDF) 4 Page - Linear Technology |
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LTC4244IGN Folha de dados(HTML) 4 Page - Linear Technology |
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4 / 28 page ![]() 4 LTC4244/LTC4244-1 42441f 3.3V and 5V Current Foldback Profile 12VOUT Current vs 12VOUT Voltage VEEOUT Current vs VEEOUT Voltage 12V Foldback Current Limit vs Temperature VEE Foldback Current Limit vs Temperature 12V Internal Switch Voltage Drop vs Temperature VEE Internal Switch Voltage Drop vs Temperature 5VIN Foldback Current Limit Voltage vs Temperature 3.3VIN Foldback Current Limit Voltage vs Temperature TYPICAL PERFOR A CE CHARACTERISTICS VOLTAGE (V) 0 1 3.3V 5V 23 4 4244 G01 5 60 50 40 30 20 10 0 VOLTAGE (V) 0 246 10 8 4244 G02 12 1.0 0.9 0.7 0.5 0.3 0.8 0.6 0.4 0.2 0.1 0 VOLTAGE (V) 0 –2 –4 –6 –10 –8 4244 G03 –12 –0.6 –0.5 –0.3 –0.4 –0.2 –0.1 0 TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G04 100 0.9 0.8 0.7 0.6 0.5 0.3 0.4 0.2 0.1 0 12VOUT = 10V 12VOUT = 0V TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G05 100 0.6 0.5 0.3 0.4 0.2 0.1 0 VEEOUT = 10V VEEOUT = 0V TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G06 100 0.30 0.25 0.15 0.20 0.10 0.05 0 I12VOUT = 550mA TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G07 100 0.14 0.12 0.10 0.06 0.08 0.04 0.02 0 IVEEIN = 100mA TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G09 100 60 50 30 40 20 10 0 3.3VOUT = 2V 3.3VOUT = 0V TEMPERATURE ( °C) –50 –25 0 25 75 50 4244 G08 100 60 50 30 40 20 10 0 5VOUT = 3V 5VOUT = 0V |
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