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ISL8117DEMO2Z 数据表(PDF) 13 Page - Intersil Corporation |
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ISL8117DEMO2Z 数据表(HTML) 13 Page - Intersil Corporation |
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13 / 23 page ![]() ISL8117 13 FN8666.3 June 4, 2015 Submit Document Feedback FIGURE 24. START-UP WAVEFORMS; MODE = CCM, LOAD = 0A, VIN = 48V FIGURE 25. START-UP WAVEFORMS; MODE = DEM, LOAD = 0A, VIN = 48V FIGURE 26. TRACKING; VIN = 48V, LOAD = 0A, MODE = CCM FIGURE 27. FREQUENCY SYNCHRONIZATION; VIN = 48V, LOAD = 0A, DEFAULT fSW = 300kHz, SYNC fSW = 400kHz FIGURE 28. LOAD TRANSIENT RESPONSE; VIN = 48V, 0A TO 20A 1A/µs STEP LOAD, CCM MODE FIGURE 29. OCP RESPONSE, OUTPUT SHORT-CIRCUITED FROM NO LOAD TO GROUND AND RELEASED, CCM MODE, VIN = 48V Typical Performance Curves OscilloscopeplotsaretakenusingtheISL8117EVAL2Zevaluationboard,V IN = 18 to 60V, VOUT = 12V, IOUT = 20A unless otherwise noted. (Continued) 20ms/DIV VOUT 5V/DIV SS 1V/DIV EN 5V/DIV PGOOD 5V/DIV 20ms/DIV VOUT 5V/DIV SS 1V/DIV EN 5V/DIV PGOOD 5V/DIV 1ms/DIV SS 500mV/DIV VOUT 10V/DIV PGOOD 5V/DIV 800ns/DIV IL 5A/DIV LGATE 5V/DIV SYNC 5V/DIV CLKOUT 5V/DIV 400µs/DIV VOUT 500mV/DIV IOUT 10A/DIV 40ms/DIV VOUT 10V/DIV IL 20A/DIV SS 2V/DIV PGOOD 5V/DIV |
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