Texas Instruments

TPS92070 LED 照明控制器

Texas Instruments 的高效率整合式可調光 LED 照明控制器

TPS92070 LED 照明控制器Texas Instruments 的 TPS92070 進階 PWM 控制器是低功耗、離線、LED 照明應用的理想選擇。 TPS92070 採用的整合式調光介面電路，屬於一種非耗散性調光器觸發控制電路。 TPS92070 控制器提供無光度漣波效應的 DC LED 電流。 而該 DC 電流可以產生更高的 LED 光效。 TPS92070 根據外接調光器的位置提供指數性控制的照明輸出。 高功率因數則是透過填谷電路實現。 TPS92070 偵測到上升邊緣調光器時，會設定輸出以停用 PFC 電路，從而達到最佳的驅動器操作。 LED 電流感測精密誤差放大器能實作深度調光。

特點及應用
  • 進階整合式調光介面
  • 非耗散性 TRIAC 調光管理
  • 調光時保持燈光的亮度一致
  • 無低頻率光度漣波
  • 指數型調光曲線
  • 具有創新的二次回授，因此可免除光耦合器設備
  • LED 電流調整效率優於 5%
  • 可編程的最小 LED 電流值
  • 谷值切換與 DCM 操作可降低 EMI 並改善效率
  • 頂尖的調光偵測
  • 功率因數大於 0.8
  • 逐週期電流限制保護
  • 低啟動及待機電流
  • 整合式 PWM MOSFET 驅動器
  • 熱關斷
  • 16 引腳 TSSOP 封裝
應用
  • LED 燈泡備件
  • LED 照明燈具
  • LED 嵌燈
  • LED 洗牆燈

TPS92070 LED Lighting Controller

圖片製造商零件編號說明現有數量價格
IC LED DRIVER OFFL TRIAC 16TSSOPTPS92070PWRIC LED DRIVER OFFL TRIAC 16TSSOP0 - 即時供貨
13876 - Marketplace		$12.48查看詳情
發佈日期： 2013-07-02

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