Offline Controllers | NCP1218

PWM コントローラ、調整可能なスキップ・レベルと外部ラッチ入力搭載

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Overview

NCP1218 は、成功した 7 ピン電流モードの NCP12XX 製品シリーズとピン互換の新世代です。調整可能なスキップ・モードを利用し、高電圧スタートアップ FET を内蔵することにより、スタンバイ電力消費に優れています。内部周波数ジッタリング、ランプ補償、タイマベースの障害検出、ラッチ入力により、頑丈さとコンポーネント・コストが主な制約であるコンバータの有力候補となります。ダイナミック自己給電 (DSS) によりトランスフォーマ設計が大幅にシンプル化するので、NCP1218 の電源供給では補助巻線を使用しなくてもよくなります。この特長は、動作中の出力電圧が変動するアプリケーション (バッテリ充電器など) で特に有用です。その高電圧テクノロジにより、IC は高電圧 DC レールへ直接接続されます。

  • AC-DC Adapters
  • Consumer Electronic Power Supplies
  • Offline Battery Chargers
  • STB, DVD, DVDR
  • Notebooks
  • LCD Monitors
  • Printers
  • Fixed-Frequency 65 kHz Current-Mode Operation with Ramp Compensation
  • Dynamic Self Supply Eliminates the Need for an Auxiliary Winding
  • Timer-Based Fault Protection for Improved Overload Detection
  • Cycle Skip Mode
  • Latch and Auto-Recovery Overload Protection Options
  • Internal High Voltage Startup Circuit
  • Accurate Current Limit Detector (5%)
  • Adjustable Skip Level
  • Latch Input for Easy Implementation of Overvoltage and Overtemperature Protection
  • Frequency Modulation for Softened EMI Signature
  • 500 mA/800 mA Peak Source/Sink Current Drive Capability
  • Pin to Pin Compatible with the Existing NCP12XX Series
  • This is a Pb-Free and Halide-Free Device

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Topology

Control Mode

fsw Typ (kHz)

Stand-by Mode

UVLO (V)

Short Circuit Protection

Latch

Soft Start

VCC Max (V)

Drive Cap. (mA)

Reference Price

NCP1218AD65R2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

65

Yes

9.4

Yes

Yes

Yes

20

500 / 800

Price N/A

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