新闻资讯
LED驱动用IC「LC5200系列」面市
作者：admin 2025-11-10
| 1. | Development Background and Product Overview |
| In recent years, the LED lightings such as LED lamps and LED fluorescent lamps have attracted attention to the replacement of incandescent lamps and fluorescent lamps. Since these are installed in existing sockets, the compatibilities are required of base size, shape and others. On the other hand, a rectification circuit for commercial power supply and a constant brightness control driver circuit are required for LED lightings because unlike incandescent lamps and fluorescent lamps, LED lightings cannot be lit by AC commercial power supply, and needs DC power supply. In addition, as the operating voltage of many driver ICs used in the driver circuit is low and the voltage such as 100V or 200V cannot be applied directly, the voltage regulator stepping down the voltage to the driver IC such as 20V or 50V is necessary. As a result, the LED driving circuit tends to be larger with more components. Considering the above, Sanken has developed the LC5200 series of LED driver ICs requiring no step down circuit, by achieving the high main power supply voltage (450V) of control IC manufactured in the high voltage BCD process. Furthermore, the LC5200 series incorporates the MOSFET that used to be added externally. That leads to components counts reduction and circuit downsizing. For the LC5200 series, the circuit is composed on a small PCB that can be installed in the base part (E26 type) of typical incandescent lamps. |
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