Current mode PWM controller
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Shen Zhen Strong Link Electronics
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LY9523/LY9525/LY9526/LY9527/LY9528
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GENERAL DESCRIPT...
Description
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Shen Zhen Strong Link Electronics
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GENERAL DESCRIPTION
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controller MOSFET.
with integr
ated hig h voltag e po wer
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combines a dedicate d curre nt mode PW M
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DIP8-300-2.54
LY952 3/LY 952 5/LY95 26/LY95 27 /LY9528
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LY9523/LY9525/LY9526/LY9527/LY9528
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Current mode PWM controller with integrated high voltage power MOSFET
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design wit h LY952 3/ LY952 5/LY 952 6/LY95 27/ LY95 28 . the IC operates in Extend ed
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‘burst mod e’ to minimize switching loss. Low
er standb y po we r and hi gh er
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Soft Start with 4mS,LY9523/LY 9 525/LY9 52 6/LY952 7/ LY952 8 offers complete
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Excellent EMI perfor
mance is achieve d wi th prop riet ary fre qu e ncy hufflin g echniqu e.
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frequ ency is
65KHz.
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LY952 3/L Y 952 5/LY95 26/LY95 27 /LY9528 o perat es in the fixed P WM freque ncy ,the
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conve rsion efficiency
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http://www.Datasheet4U.com
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FEATURES
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Integrate d high volta ge po wer MOSFET Low Vcc Startup Cu r rent( 5 μ A)
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Frequ ency shuffling for EMI
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UVLO an d Auto Self- Recover y Soft Start with 4mS Burst Mode
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LY-DOC952X REV:2.1 www.maike-tech.com
Feb..2011
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Cycle- by- Cycle Ove r-curr ent limiting
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