Secondary Side Controllers | NCP4302

フライバック SMPS 用同期整流コントローラ

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NCP4302 はフル装備のコントローラ/ドライバで、フライバックコンバータでの同期レクティファイヤの動作に必要な制御および保護機能をすべて搭載しています。NCP4302 を使用すると、アダプタ、充電器、セット・トップ・ボックスなどスペース重視のフライバック・アプリケーションで追加コストを最小限に抑えて大幅な効率アップになります。同期レクティファイヤ制御に加えて、この IC は正確な TL431 タイプ・シャント・レギュレータ、電流監視回路およびオプトカプラ・ドライバを搭載し、1 つの IC の二次的なソリューションを提供します。 NCP4302 はあらゆるタイプのフライバック・テクノロジ (連続モード、擬似共振モードまたは不連続モード) と機能し、高レベルな多用途性を提供します。

  • Notebook Adapters
  • LCD TV Adapters
  • Power Over Ethernet Applications (IP phones, Wireless Access Points)
  • Consumer Appliances such as DVD, VCR
  • Battery Chargers
  • Self contained Control of Synchronous Rectifier in CCM, DCM, and QR Flyback Applications
  • Integrated controller and driver; wide operating voltage
  • True Secondary Zero Current Detection
  • High Gate Drive Currents (2.5 A Source/Sink)
  • Built-in voltage referfence (TL431 functionality)
  • Current Sense Flexibility (MOSFET RDS(on) OR CS Resistor)
  • Accurate Low Voltage Reference, 1%
  • Programmable Independent Secondary Side ton and toff Delays
  • Maximum Frequency of Operation up to 250 kHz

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NCP4302ADR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

3

260

REEL

2500

N

28

2.55

0.1

0

85

Price N/A

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NCP4302BDR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

3

260

REEL

2500

N

28

1.275

0.1

0

85

Price N/A

More Details

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