NXP SSL4101 GreenChip III+开关电源解决方案

NXP公司的SSL4101是第三代 GreenChip III+绿色开关电源(SMPS)控制器,包括PFC控制器和反激控制器,通用电压70 V (AC)到305 V (AC)输入,只需很少数量的外接元件就能构成低成本的LED照明电源,主要用在LED照明以及10W-300W的开关电源.本文介绍了SSL4101主要特性和优势,方框图,典型应用配置图以及SSL4101驱动板指标, 48V/150W SSL4101演示板电路图和材料清单.
The GreenChip III+ is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The SSL4101T combines a controller for Power Factor Correction (PFC) and a flyback controller. Its high level of integration allows the design of a cost-effective LED lighting application power supply with a very low number of external components.
The special built-in green functions provide high efficiency at all power levels. This applies to quasi-resonant operation at high power levels, quasi-resonant operation with valley skipping, as well as to reduced frequency operation at lower power levels. At low power levels, the PFC switches off to maintain high efficiency.
During low power conditions, the flyback controller switches to frequency reduction mode and limits the peak current to 25 % of its maximum value. This will ensure high efficiency at low power and good standby power performance while minimizing audible noise from the transformer.
The SSL4101T is a MultiChip Module, (MCM), containing two chips. The proprietary high voltage BCD800 process which makes direct start-up possible from the rectified universal mains voltage in an effective and green way. The second low voltage SiIlicon On Insulator (SIO) is used for accurate, high speed protection functions and control.
The SSL4101T enables extremely efficient and reliable LED lighting application power supplies with power requirements from 10 W to 300 W, to be designed easily and with a minimum number of external components.
The new SSL4101T allows a typical 150 W LED lighting application power supply(universal input, 48 V (DC) output, TEA1761T on the secondary side...