TI TPS92010 230-VAC TRIAC調光6W LED照明方案

作者：時(shí)間：2012-04-26 來(lái)源：網(wǎng)絡(luò )

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TI公司的TPS92010具有高效率的PWM控制器,采用準諧振模式以降低EMI和開(kāi)關(guān)損耗,起動(dòng)電流小于25uA,可編程線(xiàn)路和負載過(guò)壓保護,并提供LED開(kāi)路保護和超溫保護,主要用在A(yíng)19E12/E26/27,GU10,MR16,PAR30/38集成燈,結構和顯示照明以及走廊和頂燈照明.本文介紹了TPS9201主要特性,框圖,典型應用電路圖以及230-VACTRIAC調光6-WLED驅動(dòng)器主要特性,電路圖,材料清單和布局圖.

本文引用地址：http://dyxdggzs.com/article/200436.htm

TheTPS92010isaPWMcontrollerwithadvancedenergyfeaturestoprovidehighefficiencydrivingforLEDlightingapplications.

TheTPS92010incorporatesfrequencyfoldbackandlowpowermodeoperationtoreducetheoperationfrequencyatlightloadandnoloadoperations.

TheTPS92010isofferedinthe8-pinSOIC(D)package.Operatingjunctiontemperaturerangeis–40℃to105℃.

TPS9201主要特性:

LEDLightingCurrentDriverControllerwithEnergySavingFeatures

Quasi-ResonantModeOperationforReducedEMIandLowSwitchingLosses(LowVoltageSwitching)

LowStandbyCurrentforDeepDimmingEfficiencyPowerConsumption

LowStartupCurrent:25µAMaximum

ProgrammableLineandLoadOvervoltageProtection

ProvidesOpenLEDProtection

InternalOvertemperatureProtection

CurrentLimitProtection

Cycle-by-CyclePowerLimit

Primary-SideOvercurrentHiccupRestartMode

1-ASinkTrueDrive,–0.75-ASourceGateDriveOutput

ProgrammableSoft-Start

TPS9201應用:

ResidentialLEDLightingDriversforA19E12/E26/27,GU10,MR16,PAR30/38IntegralLamps

DriversforWallSconces,PathwayLightingandOverheadLighting

DriversforWallWashing,ArchitecturalandDisplayLighting

圖1.TPS9201方框圖

圖2.TPS9201典型應用電路圖

A230-VACTRIAC調光6-WLED驅動(dòng)器

TheTPS92010EVM-631isafullyassembledandtestedcircuitfordemonstratingtheTPS92010Controllerina230VAClightbulbreplacementdesignthatisTRIACdimmable.TheTPS92010EVM-631includesanLEDlightenginetoloadtheoutputandmakeiteasytoseethedimmingfunctionwhenusedwithanexternalTRIACbaseddimmer.

TRIAC調光6-WLED驅動(dòng)器主要特性: