Offline Regulators | NCP1028

高電圧スイッチング・レギュレータ (オフライン SMPS 対応)

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Overview

NCP1028 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・アプリケーションで数 W ～ 15 W の出力電力レベルです。 当社独自の高電圧テクノロジにより Power MOSFET をスタートアップ電流源と合わせて、すべてをバルク・キャパシタに直接接続することができます。低入力電圧状態での致命的な暴走を防ぐため、調整可能なブラウンアウト回路で十分な入力レベルになるまでアクティビティをブロックします。電流モード動作を調整可能なランプ補償と同時に行い、ユニバーサルメイン・アプリケーションで優れた性能を発揮します。保護方法としては、タイマで過負荷または短絡を検知し、すべての動作を停止して、安全な自動リカバリ、低デューティ比バースト動作を確保します。統合された自動リカバリ。最後に、優れた RDS(on) 指数ですのでスタンバイ/補助オフライン電源、 またはより高い出力電力レベルを必要とするアプリケーションには、この回路が最適です。

  • Medium Power AC-DC Adapters for Chargers
  • Auxiliary power supply
  • Desktop PC
  • Flat TVs
  • DVD, STB
  • Skips cycles on low power demand
  • Short circuit protection independent of the AUX winding
  • Overpower protection
  • Built-in 700 V MOSFET with Typical RDS(on) of 5.8 , Tj = 25C
  • Fixed Peak Current of 800 mA
  • Internal Current Source for Clean and Lossless Startup Sequence
  • Programmable Brown-Out Input for Low Input Voltage Detection
  • Input to Permanently Latchoff the Part
  • Internal Frequency Jittering for Improved EMI Signature
  • No-Load Input Standby Power of 85 mW @ 265 Vac
  • 500 mW Loaded, Input Power of 715 mW @ 230 Vac
  • Programmable Over Power Protection
  • Medium Power AC-DC power supply for CE apparatus

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Control Mode

fsw Typ (kHz)

fJitter Typ (%)

Stand-by Mode

RDS(ON) Typ (Ω)

V(BR)DSS Max (V)

IPeak (mA)

HV Start-up Min (V)

DSS (mA)

UVLO

Short Circuit Protection

Over Power Compensation

Brown-out

Latch

Reference Price

NCP1028P065G

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Last Shipments

CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

50

N

Current Mode

65

Yes

Yes

5.6

700

800

Yes

N/A

Yes

Yes

Yes

Yes

No

Price N/A

More Details

NCP1028P100G

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Obsolete

CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

50

N

Current Mode

100

Yes

Yes

5.6

700

800

Yes

N/A

Yes

Yes

Yes

Yes

No

Price N/A

More Details

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