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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RT3624LE датащи(PDF) 35 Page - Richtek Technology Corporation |
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RT3624LE датащи(HTML) 35 Page - Richtek Technology Corporation |
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35 / 48 page  RT3624LE Copyright © 2022 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation DS3624LE-00 April 2022 www.richtek.com 35 VIMON-VVREF=(IL1+IL2+…)× DCR 680 Ω ×RIMON,EQ VIMON - VVREF is proportional to output current. VIMON - VVREF is used for output current reporting and load-line loop-control and sum over-current protection. For the reporting, VIMON - VVREF is averaged by analog low-pass filter and then coded by 8-bit ADC. The digitized reporting value is scaled such that FFh = ICCMAX . The RIMON, EQ should be designed so that VIMON - VVREF = VICCMAX while (IL1+IL2+…) = ICCMAXGTUS = GTUS ICC_MAX register value, where VICCMAX setting for each rail is shown below : For GTUS rail, VICCMAX=0.8V, when ICCMAX>80A VICCMAX=0.4V, when 80A≥ICCMAX≥40A VICCMAX=0.2V, when 40A>ICCMAX For VCCSA rail, VICCMAX=0.4V, when ICCMAX≥40A VICCMAX=0.2V, when 40A>ICCMAX For AUX, VICCMAX=1.6V for all ICCMAX setting For load-line loop control, VIMON − VVREF is scaled by Ai, that can be selected by Ai[1:0] of PIN-SETTING. The detailed application is described in the load-line setting section. VGTUS ISEN1P ISEN1N L DCR R C + - RCS1=680ohm IL1 ISEN2P ISEN2N L DCR R C + - IL2 ISEN3P ISEN3N L DCR R C + - IL3 ISEN4P ISEN4N L DCR R C + - IL4 IMON + - 0.6V VREF ICS,PER1 ICS,PER2 ICS,PER3 ICS,PER4 RNTC RIMON,EQ IIMON4 IIMON3 IIMON2 IIMON1 Gm Gm Gm Gm RCS2=680ohm RCS3=680ohm RCS4=680ohm VIMON VVREF Figure 12. Total Current Sense Method |
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