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TL1451AMFKB 数据表(PDF) 20 Page - Texas Instruments |
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TL1451AMFKB 数据表(HTML) 20 Page - Texas Instruments |
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20 / 36 page ![]() TL1451A DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999 20 www.ti.com TYPICAL CHARACTERISTICS 50 60 90 100 0 0.5 1 1.5 2 2.5 3 30 10 Dead-Time Input Voltage – V OUTPUT TRANSISTOR ON DUTY CYCLE vs DEAD-TIME INPUT VOLTAGE 0 3.5 4 70 20 40 80 VCC = 3.6 V RT = 10kΩ CT = 330 pF 1 0.5 0 010 20 2 STANDBY CURRENT vs SUPPLY VOLTAGE 30 40 1.5 VCC – Supply Voltage – V TA = 25°C 1.75 1.25 0.75 0.25 Figure 24 Figure 25 1 0.5 0 –25 0 25 50 1.5 2 STANDBY CURRENT vs FREE-AIR TEMPERATURE 75 100 TA – Free-Air Temperature – °C Average Supply Current VCC = 6 V, RT = 10 kΩ, CT = 330 pF Stand-By Current, VCC = 40 V, No Load Stand-By Current, VCC = 3.6 V, No Load 600 400 200 0 –25 0 25 50 800 1000 MAXIMUM CONTINUOUS POWER DISSIPATION vs FREE-AIR TEMPERATURE 1200 75 100 1100 900 700 500 300 100 16-Pin N Plastic Dip 16-Pin NS Plastic SO Thermal Resistance 125 °C/W Thermal Resistance 250 °C/W TA – Free-Air Temperature 1.75 1.25 0.75 0.25 Figure 26 Figure 27 |
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