Description
, Ko ng ,.L Shen Zhen Strong Link Electronics c( Ho LY9523/LY9525/LY9526/LY9527/LY9528 ng (H o GENERAL .
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controller MOSFET.
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
,. L td. LY-DOC952X REV:2.1 www. maike-tech. com
Feb. .2011
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Applications
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BLOCK DIAGRAM
Vcc
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5V
Internal Bias
UVLO
Vcc Clamp
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Q1
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Drain
Q3
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R1
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Q2
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LEB Soft Start
Green Mode
Burst Mode
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Vth Slope Compensation PWM Compensation OCP
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Sense Gnd
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