onsemi NCL3018x 交流-直流控制器
onsemi NCL3018x 交流-直流控制器是具有模拟/数字调光和功率因数校正功能的电流模式控制器。 这些控制器支持反激、降压-升压和单端初级电感转换器 (SEPIC) 拓扑，针对隔离和非隔离恒流 LED 驱动器。 NCL3018x 控制器采用 紧凑型 SOIC 封装，高度集成了 最少数量的外部元件。
特性
- Quasi-resonant peak current-mode control operation
- Valley lockout optimizes efficiency over the line/load range
- Constant current control with primary side feedback
- Tight LED constant current regulation of ±2% (typical)
- Line feedforward for enhanced regulation accuracy
- Low start-up current (10µA typical for NCL185 and NCL186)
- Low start-up current (13µA typical for NCL188)
- 300mA/500mA totem pole driver with 12V gate clamp
- Robust protection features
- Brown-out detection
- Over voltage protection on VCC
- Programmable over voltage/LED open circuit protection
- Winding short circuit protection
- Output short circuit protection
- Thermal shutdown
应用
- Integral LED bulbs
- LED light engines
- LED driver power supplies
- Smart LED lighting applications
发布日期: 2016-11-11
| 更新日期: 2022-03-11