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ACT4529YH-T0010 データシート(PDF) 9 Page - Active-Semi, Inc |
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ACT4529YH-T0010 データシート(HTML) 9 Page - Active-Semi, Inc |
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9 / 15 page ![]() ACT4529 Rev 4, 06-Jan-2017 Innovative Power TM - 9 - www.active-semi.com Copyright © 2 0 1 5 -2017 Active-Semi, Inc. Current Sense Resistor The traces leading to and from the sense resistor can be significant error sources. With small value sense resistors, trace resistance shared with the load can cause significant errors. It is recommended to connect the sense resistor pads directly to the CSP and CSN pins using “ K e l v i n ” o r “ 4 -wire ” connection techniques as shown below. Current Limit Setting If output current hits current limit, output voltage drops to keep the current to a constant value. The following equation calculates the constant current limit. Where Rcs is current sense resistor. P C B L o a d T r a c e K e v i n S e n s e T r a c e s S e n s e R e s i s t o r ) ( 66 ) ( m Rcs mV A ILimit ACT4529 APPLICATIONS INFORMATION (6) |
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