IRS2982S用于LED應(yīng)用的多模式反激式控制器IC。它可以縮短“點(diǎn)亮?xí)r間”,降低組件數(shù)量并降低運(yùn)行和待機(jī)功耗。旨在滿(mǎn)足中端到高端LED設(shè)計(jì)的性能和效率要求,IRS2982S提供多功能控制器解決方案,可滿(mǎn)足各種室內(nèi),室外,辦公室和工業(yè)照明方案的需求。
IRS2982S集成了一個(gè)600 V高壓?jiǎn)?dòng)單元,可提供小于0.5 s的快速“時(shí)間點(diǎn)亮”。同時(shí),它消除了用于分壓的外部組件的需要。可配置臨界導(dǎo)通模式(CrCM)和不連續(xù)電流模式(DCM)操作可確保與廣泛的應(yīng)用要求兼容。它們使器件適用于在整個(gè)電流范圍內(nèi)調(diào)光LED轉(zhuǎn)換器設(shè)計(jì)。 IRS2982S的關(guān)鍵應(yīng)用是采用CV(恒定電壓)模式的隔離式反激式開(kāi)關(guān),可在其他拓?fù)浣Y(jié)構(gòu)中實(shí)現(xiàn)設(shè)計(jì)靈活性,如采用CC / CV,降壓,升壓和SEPIC(單端初級(jí)電感轉(zhuǎn)換器)。
? 核心技術(shù)優(yōu)勢(shì)
1. Output voltage: 55 VDC
2. Maximum output continuous power: 55 W
3. Efficiency: >89%
? 方案規(guī)格
1. AC Input voltage 100 VAC up to 265 VAC (45 to 65 Hz)
2. Maximum output voltage ripple +/-3 V @ full load
- The tolerance of the nominal output voltage is +/-5% in the power range from 10%, up to 100% of the rated output power.
3. PF >0.95 @50 W load and 230 VAC input voltage
4. THD <10% @50% up to 100% load and < 20% @ 20% load with 230 VAC input voltage
5. Efficiency >89% at 80% load and >88% at 100% load @ 230 VAC input voltage.
6. Startup time to reach the secondary nominal output voltage of 55 VDC during full load condition and 230 VAC input voltage must be <300 ms.
方案來(lái)源于大大通。