The STEVAL-ILL045V1 demonstration board showcases ST’s new LED driver chip, HVLED815PF. It solves the problem of low-cost drive circuitry for LED replacements for 40 W incandescent or equivalent compact-fluorescent lamps.
The HVLED815PF is a new integrated power controller using primary-side control to achieve LED current regulation within +/-5%. (It also has primary-side voltage regulation, used here for open load protection.)
The device incorporates an 800 V avalanche-rated FET and fits a standard SO-16 package. An internal startup circuit eliminates the need for external rapid-start circuitry.
The PFC-flyback power converter operates in transition mode for the highest efficiency and best use of components.
With the addition of a few extra components the HVLED815PF is made to draw near-sinusoidal input current from the AC line.
The circuit regulates LED current over a wide range of line voltage and LED string voltage, and it is dimmable with standard Triac-based dimmers
订购型号 | 产品状态 | 美金价格 | 数量 | 封装 | 包装形式 | 温度范围 | 材料声明 |
STEVAL-ILL045V1 | Preview | 1000 | STEVAL-ILL045V1 |
描述 | 版本 | 大小 |
STEVAL-ILL045V1 : DB1694: 9 W, A19 format Triac dimmable, high power factor, non-isolated LED driver based on the HVLED815PF (for US market) | 1 | 281KB |
描述 | 版本 | 大小 |
AN4130: STEVAL-ILL045V1: 120 V A19 dimmable high power factor 9 W LED driver using the HVLED815PF | 1 | 3384KB |