Datasheet > HT7L2103

HT7L2103

更新时间： 2022-11-07 20:29:17

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		驱动器
页数	文件大小	规格书
11页	906K
描述
Anti-EMI, High Efficiency Dimmable LED Lighting Driver with Primary-Side Constant Control and Green Mode

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HT7L2103 数据手册

HT7L2103

Anti-EMI, High Efﬁciency Dimmable

LED Lighting Driver with Primary-Side

Constant Control and Green Mode

Feature

General Description

•ꢀ FrequencyꢀJitterꢀforꢀEMIꢀRestriction

TheꢀHT7L2103ꢀisꢀanꢀadvanced,ꢀhighlyꢀintegratedꢀ

LEDꢀLightingꢀDriverꢀusingꢀanꢀAC-DCꢀisolationꢀ

topology.ꢀTheꢀdeviceꢀprovidesꢀmanyꢀprotectionꢀ

•ꢀ IntegratedꢀSoft-StartꢀFunction

•ꢀ VeryꢀLowꢀOperatingꢀCurrentꢀandꢀStart-upꢀCurrentꢀ

functionsꢀandꢀusesꢀultraꢀlowꢀpowerꢀcircuitꢀdesign,ꢀandꢀ

isꢀoptimizedꢀtoꢀrestrictꢀEMI.ꢀByꢀintegratingꢀaꢀspecialꢀ

multi-functionꢀinterface,ꢀthisꢀdeviceꢀcanꢀbeꢀusedꢀforꢀ

differentꢀLEDꢀpowerꢀtopologiesꢀsuchꢀasꢀPrimaryꢀ

FeedbackꢀIsolationꢀFlyback,ꢀSecondaryꢀFeedbackꢀ

Isolationꢀ Flyback,ꢀ DC-DCꢀ Buck/Boost/ꢀ Buck-

Boost.ꢀThisꢀdeviceꢀalsoꢀintegratesꢀvariousꢀprotectionꢀ

functionsꢀforꢀLEDꢀLightingꢀrequirementsꢀsuchꢀasꢀ

Cycle-by-CycleꢀCurrentꢀLimiting,ꢀShort-Circuitꢀ

Protectionꢀ(SCP),ꢀOver-VoltageꢀProtectionꢀ(OVP),ꢀ

InternalꢀOver-TemperatureꢀProtectionꢀ(OTP),ꢀandꢀaꢀ

Soft-Startꢀfunctionꢀtoꢀreduceꢀinrushꢀcurrentsꢀduringꢀ

LEDꢀpowerꢀsystemꢀinitializationꢀforꢀtheꢀpreventionꢀofꢀ

deviceꢀburn-out.ꢀꢀ

(<20 A)ꢀforꢀsatisfyingꢀEnergy-Starꢀ2.0ꢀ"No-Loadꢀ

Mode"ꢀ(Stand-by)ꢀPowerꢀstandard

•ꢀ ±5%ꢀTrimmedꢀPrecisionꢀOscillator

•ꢀ Non-Audible-NoiseꢀGreenꢀModeꢀControlꢀtoꢀ

maintainꢀefﬁciencyꢀforꢀbothꢀLightꢀandꢀHeavyꢀ

Loads

•ꢀ LEBꢀ(Leading-EdgeꢀBlanking)ꢀonꢀCSꢀPin

•ꢀ InternalꢀSlopeꢀCompensation

•ꢀ Cycle-by-CycleꢀCurrentꢀLimiting

•ꢀ Short-Circuit-Protection(SCP)ꢀforꢀShort-Circuitꢀ

andꢀOver-LoadꢀCondition

•ꢀ Over-Voltage-Protection(OVP)ꢀonꢀVCCꢀPinꢀ

•ꢀ InternalꢀOver-Temperature-Protection(OTP)

•ꢀ 1~99%ꢀPWMꢀDimmingꢀRange

TheꢀHT7L2103ꢀprovidesꢀaꢀ1~99%ꢀPWMꢀDimmingꢀ

Rangeꢀwithꢀduty-cycleꢀscaleꢀprecisionꢀlowerꢀthanꢀ1%.ꢀ

•ꢀ 8-pinꢀSOPꢀpackage

Applications

•ꢀ IsolationꢀAC-DCꢀLEDꢀLighting

•ꢀ AC-DCꢀSwitchingꢀPowerꢀSupply/Adapter

Application Circuits

Vout

BD1

Vac=85V~265V

C14

R13

VCC

R14

C12

COMP/FB

C16

Vref

R12

R19

HT7L2103

ISENSE

C15

R11

GND

Rev. 1.00

November 04, 2011

12 3 4 5 6 7...11

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