NCP1937BADAPGEVB: 90 W Adapter PFC+QR 10 MW Evaluation Board
This combination IC integrates power factor correction (PFC) and quasi-resonant flyback functionality necessary to implement a compact and highly efficient Switched Mode Power Supply for an adapter application.The PFC stage exhibits near-unity power factor while operating in a Critical Conduction Mode (CrM) with a maximum frequency clamp. The circuit incorporates all the features necessary for building a robust and compact PFC stage while minimizing the number of external components.The quasi-resonant current-mode flyback stage features a proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 4th valley and toggles to a frequency foldback mode with a minimum frequency clamp beyond the 4th valley to eliminate audible noise. Skip mode operation allows excellent efficiency in light load conditions while consuming very low standby power consumption.
评估/开发工具信息
| 产品 | 状况 | Compliance | 简短说明 | 所用产品 |
|---|---|---|---|---|
| NCP1937BADAPGEVB | Active | Pb-free | 90 W Adapter PFC+QR 10 MW Evaluation Board | NCP1937A1DR2G NCP4304ADR2G NCP4304AMNTWG NCP4304BDR2G NCP4304BMNTWG NCP4355BDR2G |
技术文档
| 类型 | 文档标题 | 文档编号/大小 | 修订号 |
|---|---|---|---|
| Eval Board: BOM | NCP1937BADAPGEVB Bill of Materials ROHS Compliant | NCP1937BADAPGEVB_BOM_ROHS.PDF - 290 KB | 2 |
| Eval Board: Gerber | NCP1937BADAPGEVB Gerber Layout Files (Zip Format) | NCP1937BADAPGEVB_GERBERS.ZIP - 135 KB | 2 |
| Eval Board: Schematic | NCP1937BADAPGEVB Schematic | NCP1937BADAPGEVB_SCHEMATIC.PDF - 366 KB | 2 |
| Eval Board: Test Procedure | NCP1937BADAPGEVB Test Procedure | NCP1937BADAPGEVB_TEST_PROCEDURE.PDF - 156.0 KB | 0 |
| Video | Computer Solutions with NCP1937BADAPGEVB Evaluation Board | TND6054/D | 1 |
- NCP1937BADAPGEVB BOM ROHS NCP1937BADAPGEVB
- NCP1937BADAPGEVB GERBERS NCP1937BADAPGEVB
- NCP1937BADAPGEVB SCHEMATIC NCP1937BADAPGEVB
- NCP1937BADAPGEVB TEST PROCEDURE NCP1937BADAPGEVB
- NCP1937BADAPGEVB
