UCC3817
- Controls Boost Preregulator to Near-Unity Power Factor
- Limits Line Distortion
- World Wide Line Operation
- Over-Voltage Protection
- Accurate Power Limiting
- Average Current Mode Control
- Improved Noise Immunity
- Improved Feed-Forward Line Regulation
- Leading Edge Modulation
- 150-µA Typical Start-Up Current
- Low-Power BiCMOS Operation
- Up to 18-V Operation
- Frequency Range 6 kHz to 220 kHz
The UCCx817 and UCCx818 family provides all the functions necessary for active power factor-corrected preregulators. The controller achieves near-unity power factor by shaping the AC input line current waveform to correspond to that of the AC input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.
Designed in Texas Instrument’s BiCMOS process, the UCCx817 and UCCx818 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor, and an improved, low-offset (±2-mV) current amplifier to reduce distortion at light load conditions.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | UCC2817, UCC2818, UCC3817 and UCC3818 BiCMOS Power Factor Pregulator 数据表 (Rev. K) | PDF | HTML | 2016年 10月 1日 | ||
用户指南 | UCC3817 BiCMOS Power Factor Preregulator Evaluation Board (Rev. D) | 2014年 11月 13日 | ||||
应用手册 | Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C) | 2011年 4月 13日 | ||||
应用手册 | Startup Current transient of the Leading Edge Triggered PFC Controllers | 2004年 6月 30日 | ||||
应用手册 | UCC3817 Current Sense Transformer Evaluation | 2004年 2月 13日 | ||||
应用手册 | PFC Family Differences UCC3817A/18A/19A and UCC3817/18/19 | 2003年 8月 18日 | ||||
应用手册 | 功率因子校正电路交流电要求 | 2002年 3月 28日 | ||||
应用手册 | Accurate PWM Duty Cycle Clamp | 2002年 1月 25日 | ||||
应用手册 | DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A) | 2001年 11月 6日 | ||||
应用手册 | Synchronizing a PFC Controller from a Down Stream Controller Gate Drive | 2000年 11月 3日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
PDIP (N) | 16 | Ultra Librarian |
SOIC (D) | 16 | Ultra Librarian |
SOIC (DW) | 16 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点