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TL494ING Datasheet(PDF) 11 Page - ON Semiconductor |
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TL494ING Datasheet(HTML) 11 Page - ON Semiconductor |
11 / 14 page TL494, NCV494 http://onsemi.com 11 Figure 21. Pulse Width Modulated Step−Down Converter +Vin = 10V to 40V Tip 32A 1.0mH @ 2A +VO = 5.0 V IO = 1.0 A 50 10V + 5.1k MR850 0.1 150 5.1k 5.1k 47k 1.0M 0.1 3 2 1 14 15 16 Comp − + − Vref + VCC C1 C2 50 50V 0.001 56 4 13 7 9 10 CT RT D.T. O.C. Gnd E1 E2 + 47k + 500 10V 150 47 11 12 8 TL494 Test Conditions Results Line Regulation Vin = 8.0 V to 40 V 3.0 mV 0.01% Load Regulation Vin = 12.6 V, IO = 0.2 mA to 200 mA 5.0 mV 0.02% Output Ripple Vin = 12.6 V, IO = 200 mA 40 mV pp P.A.R.D. Short Circuit Current Vin = 12.6 V, RL = 0.1 W 250 mA Efficiency Vin = 12.6 V, IO = 200 mA 72% |
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