Offline Controllers | NCP1342

擬似共振フライバック・コントローラ（バレー・ロックアウト・スイッチング対応）

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Overview

NCP1342は、高性能オフライン電源コンバータの設計に適した高集積擬似共振フライバック・コントローラです。X2キャパシタ・アクティブ放電機能を内蔵したNCP1342で、無負荷電力消費を30 mWより低くすることができます。NCP1342の特長は、独自のバレー・ロックアウト回路でバレー・スイッチングの安定性を確保することです。 このシステムで第6バレーまで奏効すると、周波数フォールドバック・モードに移行し、スイッチング損失を低減します。 負荷がさらに低減すると、NCP1342はクワイエットスキップ・モードに移行して電源供給を管理し、音響ノイズを最小化します。高周波設計での低負荷性能を確保するため、NCP1342は最小ピーク電流モジュレーション（MPCM）を内蔵し、スイッチング周波数を迅速に低減します。 コンバータを頑丈にするため、NCP1342では複数のキー保護機能を実装しています。内部での節電検出、入力電圧によらない最大定出力電圧のための無散逸での過電力保護（OPP）、専用ピンによる過電圧ラッチとNTC対応温度過昇保護、ACラインが取り外された際にX2キャパシタを安全に放電するための配線除去検出などです。

  • Medium or High Power AC-DC Adapters
  • Ultra High Density AC-DC Adapters
  • USB PD Compliant

  • Notebook Adapters
  • Flat TV SMPS
  • Computer Power Supplies
  • Phone and Tablet Adapters

  • Minimum Peak Current Modulation for Rapid Frequency Foldback (RFF)
  • QR Frequency Jittering
  • Quiet-Skip Technology
  • Integrated HV Startup with Brownout Protection
  • Valley Switching Operation with Valley Lockout
  • Integrated X2 Capacitor Discharge Capability
  • NTC Compatible Fault Pin
  • High Drive Capability: -500 mA / +800 mA
  • Latch input for OVP and OTP implementation

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fsw Typ (kHz)

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NCP1342ADDCDAD1R2G

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Lifetime

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Pb

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SOIC-9 NB

751BP

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260

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2500

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$0.56

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NCP1342AMAACD1R2G

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751BP

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$0.4984

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NCP1342AMDADGD1R2G

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Pb

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751BP

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260

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$0.493

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NCP1342AMDCCDR2G

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SOIC-8

751-07

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$0.4543

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NCP1342AMDCDAD1R2G

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NCP1342AMDCDD1R2G

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NCP1342AMDCDHD1R2G

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CAD Model

Pb

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SOIC-9 NB

751BP

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2500

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$0.483

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NCP1342ANACCED1R2G

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NCP1342ANACECD1R2G

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NCP1342ANACED1R2G

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NCP1342ANDAAD1R2G

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Pb

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NCP1342ANDBDD1R2G

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NCP1342ANDCDAD1R2G

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$0.5695

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NCP1342BKDCDAD1R2G

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NCP1342BMDCDAD1R2G

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NCP1342BMDCDD1R2G

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$0.5007

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NCP1342BMDCDDD1R2G

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NCP1342DADBDD1R2G

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NCP1342DADBDGD1R2G

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Pb

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SOIC-9 NB

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$0.5673

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NCP1342ENACEFD1R2G

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Pb

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SOIC-9 NB

751BP

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NCP1342ENDCEAD1R2G

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Pb

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$0.483

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信頼性データ

Die Related Summary Data

Device: NCP1342AMDCCDR2G

Equivalent to wafer fab process: VHVIC

製品技術

製品技術

等価デバイス時間

MTBF/MTTF (時間)

FITS

VHVIC

2

2577173853

More Details

Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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