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LT1249C Datasheet(PDF) 4 Page - Linear Technology |
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LT1249C Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page 4 LT1249 TYPICAL PERFORMANCE CHARACTERISTICS IAC (µA) 0 300 150 0 1249 G04 250 500 VAOUT = 6.5V VAOUT = 6V VAOUT = 5.5V VAOUT = 5V VAOUT = 4.5V VAOUT = 4V VAOUT = 3.5V VAOUT = 3V VAOUT = 2.5V VAOUT = 2V LOAD CAPACITANCE (nF) 0 400 300 200 100 0 10 20 30 40 1249 G08 50 RISE TIME NOTE: GTDR SLEWS BETWEEN 1V AND 16V FALL TIME Start-Up Supply Current vs Supply Voltage Switching Frequency TEMPERATURE ( °C) –75 75 1249 G10 –25 25 125 140 130 120 110 100 90 80 70 –50 0 50 100 JUNCTION TEMPERATURE ( °C) –75 75 7.536 7.524 7.512 7.500 7.488 7.476 7.464 7.452 7.440 7.428 1249 G03 –50 150 –25 0 25 50 100 125 SUPPLY VOLTAGE (V) 10 10 9 8 7 6 5 4 3 2 1 0 26 1249 G05 14 12 16 20 24 28 18 22 30 TJ = –55°C TJ = 25°C TJ = 125°C Supply Current vs Supply Voltage GTDR Source Current SOURCE CURRENT (mA) 0 18.5 18.0 17.5 17.0 16.5 16.0 15.5 15.0 14.5 14.0 13.5 13.0 1249 G06 –300 TJ = 25°C TJ = 125°C VCC = 18V TJ = –55°C –60 –120 –180 –240 GTDR Sink Current SINK CURRENT (mA) 0 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1249 G07 300 TA = 125°C TA = –55°C 60 120 180 240 TA = 25°C GTDR Rise and Fall Time Reference Voltage vs Temperature Multiplier Current SUPPLY VOLTAGE (V) 0 550 500 450 400 350 300 250 200 150 100 50 0 1249 G09 20 125 °C –55 °C 25 °C 4 812 16 26 10 14 18 |
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