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產品規格表
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.
技術文件
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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC2817, UCC2818, UCC3817 and UCC3818 BiCMOS Power Factor Pregulator datasheet (Rev. K) | PDF | HTML | 2016年 10月 1日 |
| User guide | UCC3817 BiCMOS Power Factor Preregulator Evaluation Board (Rev. D) | 2014年 11月 13日 | ||
| Application note | Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C) | 2011年 4月 13日 | ||
| Application note | Startup Current transient of the Leading Edge Triggered PFC Controllers | 2004年 6月 30日 | ||
| Application note | UCC3817 Current Sense Transformer Evaluation | 2004年 2月 13日 | ||
| Application note | PFC Family Differences UCC3817A/18A/19A and UCC3817/18/19 | 2003年 8月 18日 | ||
| Application note | AC Requirements for Power Factor Correction Circuits | 2002年 3月 28日 | ||
| Application note | Accurate PWM Duty Cycle Clamp | 2002年 1月 25日 | ||
| Application note | DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A) | 2001年 11月 6日 | ||
| Application note | Synchronizing a PFC Controller from a Down Stream Controller Gate Drive | 2000年 11月 3日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| PDIP (N) | 16 | 檢視選項 |
| SOIC (D) | 16 | 檢視選項 |
| SOIC (DW) | 16 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點