Offline Controllers | NCP1366

低電力オフライン定電流 PWM 電流モード・コントローラ (高電圧スタートアップ電流源対応)

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CAD Model

Overview

NCP1366 による新しいソリューションのターゲットは、ユニバーサルメイン・フライバック・アプリケーションの出力電力レベル数 W ～ 20 W です。新しいメソッドにより、定電流レギュレーション用のセカンダリ・フィードバック回路が必要なくなります。その一方で、従来のオプトカプラや TL431 電圧リファレンスによる活線/負荷レギュレーションに優れています。NCP1366 は、高負荷時にバレー・ロックアウト疑似共振ピーク電流モード制御モードで動作し、高効率を実現します。セカンダリ・サイドの電力が下がり始めると、デューティ比を自動調整し、その後はバレー・スイッチング検知によって、低負荷時には、固定ピーク電流でのパルス周波数変調に入ります。この技術により、小さいダミー負荷で、出力レギュレーションを保持します。最初の 4 バレーでのバレー・ロックアウトにより、バレーのジャンピング動作を防止した後、低負荷時のバレー・スイッチングによって高効率を実現します。

  • AC-DC USB chargers for cell phones, tablets, and other portable devices
  • AC-DC USB chargers for cell phones, tablets, and other portable devices
  • 560-V Startup Current Source
  • No frequency clamp, 80 or 110 kHz Maximum Switching Frequency
  • Quasi-Resonant with Valley Switching Operation
  • Fixed Peak Current & Deep frequency foldback @ light load operation
  • Wide Operation VCC range (up to 28 V)
  • Cycle by Cycle peak current limit
  • CS & Vs/ZCD pin Short and Open Protection
  • Internal Temperature Shutdown
  • Constant Current Primary-side feedback eliminates secondary controller
  • ±10% Current Regulation
  • Clamped Gate-drive Output for Mosfet
  • Build-in soft-sart
  • Low Start-up current ( 2 μA typ.)
  • Less than 10 mW No-Load Performance at High Line with NCP1366 version
  • Less than 30 mW No-Load Performance at High Line with NCP1361 version
  • These are Pb-Free Devices

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

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Container Qty.

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fsw Typ (kHz)

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UVLO (V)

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Reference Price

NCP1366AABAYDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

$0.4037

More Details

NCP1366BABAYDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

No

Yes

28

2000 / 1000

$0.3694

More Details

NCP1366BABCYDR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

Price N/A

More Details

NCP1366EABAYDR2G

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Lifetime

CAD Model

Pb

A

H

P

SOIC-7

751U

3

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

6.5

Yes

No

Yes

28

2000 / 1000

$0.2872

More Details

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