LM3445EVM-695
LM3445 120Vac Valley Fill 降圧トライアック調光 LED ドライバ評価モジュール
LM3445EVM-695
概要
The LM3445EVM-695 implements a dimming solution using the LM3445 integrated circuit from Texas Instruments. The LM3445 is an adaptive constant off-time AC/DC buck constant current controller with built in phase dimming decoder. Line cycles are analyzed continuously by an internal low power digital controller for shape and symmetry. An analog current reference is then generated and used by the power converter stage to regulate the output current. The analog reference is manipulated using control algorithms developed to optimize dimmer compatibility, power factor and THD. Using constant off-time control the solution achieves low part count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.
特長
- Constant Current Buck LED Driver
- 120Vac Nominal Input
- Triac Dimmable
- Good Line Regulation
- Small Form Factor
照明 LED ドライバ
購入と開発の開始
LM3445EVM-695 — LM3445 120Vac Valley Fill 降圧トライアック調光 LED ドライバ評価モジュール
技術資料
| 種類 | タイトル | 英語版のダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| 証明書 | LM3445EVM-695 EU Declaration of Conformity (DoC) | 2019年 1月 2日 | ||||
| ユーザー・ガイド | 120Vac Valley Fill Buck Triac Dimmable LED Driver | 2015年 5月 12日 |