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ML4823IS Folha de dados(PDF) 6 Page - Micro Linear Corporation |
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ML4823IS Folha de dados(HTML) 6 Page - Micro Linear Corporation |
6 / 9 page ML4823 6 ERROR AMPLIFIER The ML4823 error amplifier is a 5.5MHz bandwidth 12V/ µs slew rate op-amp with provision for limiting the positive output voltage swing (Output Inhibit line) for ease in implementing the soft start function. 5 4 3 2 1 0 0.2 0.4 0.6 0.8 1.0 TIME ( µs) VIN VOUT 100 80 60 40 20 0 –20 100 1K 10K 100K 1M 10M FREQ (Hz) 100M 0 0 –90 –180 GAIN φ Figure 5. Unity Gain Slew Rate Figure 6. Open Loop Frequency Response OUTPUT DRIVER STAGE The ML4823 Output Driver is a 2A peak output high speed totem pole circuit designed to quickly switch the gates of capacitive loads, such as power MOSFET transistors. Figure 8. Saturation Curves 3 2 1 0 0 0.5 1.0 1.5 IOUT (A) SOURCE SINK Figure 7. Simplified Schematic POWER GND Q1 Q2 OUT VCC POWER VC 15 10 5 0 0 40 80 120 160 200 TIME (ns) 0.2 IL (A) 0 –0.2 15 10 5 0 0 100 200 300 400 500 TIME (ns) 2 IL (A) 0 –2 Figure 10 Rise/Fall Time (CL = 10,000pF) Figure 9. Rise/Fall Time (CL = 1000pF) |
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Descrição semelhante - ML4823IS |
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