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HT7L5610 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

No. de Pieza. HT7L5610
Descripción  Primary Side Regulation Off Line LED Driver with Active PFC
Descarga  9 Pages
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Fabricante  HOLTEK [Holtek Semiconductor Inc]
Página de inicio  http://www.holtek.com
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HT7L5610 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc

   
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Rev. 1.00
1
September 08, 2015
Rev. 1.00
PB
September 08, 2015
HT7L5610
Primary Side Regulation Off Line
LED Driver with Active PFC
Features
• Primary-sidecurrentsensingandregulation
withoutanopto-coupler
• Integrated650VMOSFET
• WideACinputrange-from85VACto265VAC
• HighPowerFactorof>0.9withoutadditional
circuitry
• Accurateconstantcurrent(<±3%)
• Lowstart-upcurrentwhichreducespower
dissipation
• Fullprotectionfunctionsforenhancedsafety
Gatedriveroutputvoltageclamp
VCCovervoltageprotection-VCCOVP
VCCunder-voltagelockoutwithhysteresis-VCC
UVLO
OutputLEDstringovercurrentprotection
OutputLEDstringshort/openprotection
On-chipovertemperatureprotection-OTP
• 8-pinDIPpackage
Applications
• Generalillumination
• E26/27,T5/T8LEDLamp
• OtherLEDLightingApplications
General Description
TheHT7L5610isasingle-stage,isolated,primary-
sideofflineLEDlightingcontrollerthathasthe
benefitsofhighpowerfactorandafullyintegrated
powerMOSFET.ControlofthispowerMOSFETis
implementedbyregulatingaconstantLEDcurrent
accuratelyfromtheprimary-side.Thiscansignifi-
cantlysimplifytheLEDlightingsystemdesignby
eliminatingthesecondary-sidefeedbackcomponents
andtheusuallyrequiredopto-coupler.Theextremely
lowstart-upcurrentandquiescentcurrentreducesthe
totalpowerconsumptiontoprovideahighefficiency
solutionforlightingapplications.
Thedeviceprovidesseveralprotectionfunctions,
whichincludeVCCUnderVoltageLockout(UVLO),
OverCurrentProtection(OCP),OutputLEDString
OpenProtection,OutputLEDStringShortProtection,
VCCOverVoltageProtection(OVP)andLeading-
EdgeBlanking(LEB)forcurrentsensing.Additional-
lyandtoensuresystemreliability,thedeviceincludes
afullyintegratedthermalprotectionfunction.
Thehighleveloffunctionalintegrationminimisesthe
externalcomponentcountgivingmajoradvantages
intermsofcostandcircuitboardarea.Thedeviceis
suppliedinan8-pinDIPpackage.
Application Circuits
ACIN
VOUT+
VOUT-
HT7L5610
GND
COMP
DRAIN
VCC
ZCD
SOURCE DRAIN
CS


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