NCL30081 可分步調(diào)光的準(zhǔn)諧振初級端電流模式控制器用于LED照明
數(shù)據(jù):
NCL30081datasheet.pdf
產(chǎn)品信息
NCL30081是一款PWM電流模式控制器,用于隔離型反激及非隔離降壓-升壓恒流拓?fù)浣Y(jié)構(gòu)。這控制器采用準(zhǔn)諧振模式工作,以提供高能效。由于采用新穎的控制方法,NCL30081能在初級端精確地對LED電流進(jìn)行穩(wěn)流,這就省去次級端反饋電路、偏置及光耦。這控制器集成了5步對數(shù)調(diào)光功能,使LED燈泡能夠采用標(biāo)準(zhǔn)壁式開關(guān)來進(jìn)行調(diào)光。
- Primary Side Sensing
- Wide V
- Range
- Precise LED Current Regulation of±1% typical
- ~ 0.90 PF with passive valley fill
- Open and shorted output protection
- Secondary Diode Short Protection
- Shorted Current Sense Fault Detection
- Input Line Voltage Sensing
- Auto-recoverable (B-version) and Latched (A-version) fault handling
- Wide Temperature range of -40 to 125 °C
電路圖、引腳圖和封裝圖
