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LM5035CMH/NOPB датащи(PDF) 16 Page - Texas Instruments |
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LM5035CMH/NOPB датащи(HTML) 16 Page - Texas Instruments |
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16 / 43 page ![]() RES SS LO HO 5V t1 Current Limit Detected at CS 2.5V 0V +110 PA +1 PA t2 t3 #1V CLK Q S R Drivers Off SS PWM COMP CS RES LM5035C SS Drivers Off Voltage Feedback Current Sense Circuit CRES Restart Comparator Restart Latch 2.5V 5V Restart Current Source Logic SS Logic To Output Drivers Current Limit 0.25 V CSS 100 mV 110 PA 110 PA 1 PA 22 PA 12 PA Copyright © 2016, Texas Instruments Incorporated 16 LM5035C SNVS631D – JANUARY 2010 – REVISED OCTOBER 2016 www.ti.com Product Folder Links: LM5035C Submit Documentation Feedback Copyright © 2010–2016, Texas Instruments Incorporated Feature Description (continued) configuration are that a short term overload will not cause a hiccup mode restart but during extended overload conditions, the average dissipation of the power converter will be very low. 4. Externally Controlled Hiccup: The RES pin can also be used as an input. By externally driving the pin to a level greater than the 2.5-V hiccup threshold, the controller will be forced into the delayed restart sequence. For example, the external trigger for a delayed restart sequence could come from an overtemperature protection circuit or an output overvoltage sensor. Figure 11. Current Limit Restart Circuit Figure 12. Current Limit Restart Timing |
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