TI TPS92010 230-VAC TRIAC調(diào)光6W LED照明方案

作者：時間：2012-04-26 來源：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(zhǔn)諧振模式以降低EMI和開關(guān)損耗,起動電流小于25uA,可編程線路和負(fù)載過壓保護(hù),并提供LED開路保護(hù)和超溫保護(hù),主要用在A19E12/E26/27,GU10,MR16,PAR30/38集成燈,結(jié)構(gòu)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(yīng)用電路圖以及230-VACTRIAC調(diào)光6-WLED驅(qū)動器主要特性,電路圖,材料清單和布局圖.

本文引用地址：http://butianyuan.cn/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(yīng)用:

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

DriversforWallSconces,PathwayLightingandOverheadLighting

DriversforWallWashing,ArchitecturalandDisplayLighting

圖1.TPS9201方框圖

圖2.TPS9201典型應(yīng)用電路圖

A230-VACTRIAC調(diào)光6-WLED驅(qū)動器

TheTPS92010EVM-631isafullyassembledandtestedcircuitfordemonstratingtheTPS92010Controllerina230VAClightbulbreplacementdesignthatisTRIACdimmable.TheTPS92010EVM-631includesanLEDlightenginetoloadtheoutputandmakeiteasytoseethedimmingfunctionwhenusedwithanexternalTRIACbaseddimmer.

TRIAC調(diào)光6-WLED驅(qū)動器主要特性: