TI TPS92010 230-VAC TRIAC调光6W LED照明方案

时间：2012-04-24 05:04:23

关键字： LED照明 TRIAC PS

[导读]TI公司的TPS92010具有高效率的PWM控制器,采用准谐振模式以降低EMI和开关损耗,起动电流小于25uA,可编程线路和负载过压保护,并提供LED开路保护和超温保护,主要用在A19E12/E26/27,GU10,MR16,PAR30/38集成灯,结构和显示照

TI公司的TPS92010具有高效率的PWM控制器,采用准谐振模式以降低EMI和开关损耗,起动电流小于25uA,可编程线路和负载过压保护,并提供LED开路保护和超温保护,主要用在A19E12/E26/27,GU10,MR16,PAR30/38集成灯,结构和显示照明以及走廊和顶灯照明.本文介绍了TPS9201主要特性,框图,典型应用电路图以及230-VACTRIAC调光6-WLED驱动器主要特性,电路图,材料清单和布局图.

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应用:

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

DriversforWallSconces,PathwayLightingandOverheadLighting

DriversforWallWashing,ArchitecturalandDisplayLighting

图1.TPS9201方框图

图2.TPS9201典型应用电路图

A230-VACTRIAC调光6-WLED驱动器

TheTPS92010EVM-631isafullyassembledandtestedcircuitfordemonstratingtheTPS92010Controllerina230VAClightbulbreplacementdesignthatisTRIACdimmable.TheTPS92010EVM-631includesanLEDlightenginetoloadtheoutputandmakeiteasytoseethedimmingfunctionwhenusedwithanexternalTRIACbaseddimmer.

TRIAC调光6-WLED驱动器主要特性: