IRS27952STRPBF
IR(国际整流器)
2500
SOP-8
10V-20V
40℃-125℃
Features
Simpleprimary-sidecontrolsolutionforfixedandvariable
frequencyDC-DCresonantconverters.
Max500kHzperchanneloutputwith50%dutycycle
Floatingchannelbootstrapoperationupto+600Vdc
Programmableminimumandmaximumswitchingfrequency
Programmablesoftstartfrequencyandsoftstarttime
Programmabledeadtime
Micropowerstart-up&ultralowquiescentcurrent
Over-currentprotectionusinglowsideMOSFETRds(on)
Userinitiatedmicropower“Sleepmode”
Under-voltageLockout
Simpledesignwithminimalcomponentcount.
Lead-free
TypicalApplication
LCD&PDPTV
TelecomSMPS,PCSMPS
HomeAudioSystems
TheIRS2795(1,2)(4)isaselfoscillatinghalf-bridgedriverICforDC-DCresonantconverterapplications,especially
theLLCresonanthalf-bridgeconverter.Thefrequencyanddeadtimecanbeprogrammedexternallyusingtwo
externalcomponents.TheICoffersovercurrentprotectionusingtheonstateresistanceofthelow-sideMOSFET.
TheICcanbedisabledbyexternallypullingthevoltageattheCT/SDpinbelowitsenablevoltagethreshold