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LM138 Folha de dados(PDF) 4 Page - Linear Technology |
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LM138 Folha de dados(HTML) 4 Page - Linear Technology |
4 / 12 page 4 LT138A/LT338A LM138/LM338 138afb TYPICAL PERFOR A CE CHARACTERISTICS TEMPERATURE ( °C) –75 – 0.4 – 0.3 – 0.1 0 0.1 –25 25 50 150 138/338 G01 – 0.2 –50 0 75 100 125 0.2 IOUT = 5A IOUT = 3A VIN = 15V VOUT = 10V PRELOAD = 50mA Load Regulation Load Regulation TEMPERATURE ( °C) –50 1.230 1.240 1.250 1.260 1.270 –25 0 25 50 138A/338A G04 75 100 125 150 Temperature Stability INPUT-OUTPUT DIFFERENTIAL (V) 0 3 4 5 15 25 40 138A/338A G06 2 1 0 510 20 30 35 TJ = 25°C TJ = 150°C TJ = –55°C TEMPERATURE ( °C) –75 35 40 45 75 65 138A/338A G03 30 –25 25 125 50 55 60 Adjustment Current TEMPERATURE ( °C) –75 1 3 –25 25 50 150 138/338 G02 2 –50 0 75 100 125 4 IOUT = 5A IOUT = 3A IOUT = 1A ∆VOUT = 100mV Dropout Voltage FREQUENCY (Hz) 10 0.1 1 10 100k 138/338 G05 0.01 0.001 0.0001 100 1k 10k 1M VIN = 15V VOUT = 10V IOUT = 500mA CADJ = COUT = 10µF CADJ = COUT = 0µF Output Impedance Minimum Operating Current Ripple Rejection Ripple Rejection Ripple Rejection OUTPUT VOLTAGE (V) 05 0 40 100 10 20 25 138A/338A G07 20 80 60 15 30 35 CADJ = 10µF CADJ = 0µF VIN – VOUT = 5V IOUT = 500mA f = 120Hz TJ = 25°C FREQUENCY (Hz) 10 60 80 100 100k 138A/338A G08 40 20 0 100 1k 10k 1M CADJ = 10µF CADJ = 0µF VIN = 15V VOUT = 10V IOUT = 0.2A OUTPUT CURRENT (A) 0.1 40 50 60 80 110 138/338 G09 70 CADJ = 10µF CADJ = 0µF VIN = 15V VOUT = 10V f = 120Hz TCASE = 25°C |
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