Linear LED Drivers | CAT3636

LED ドライバ、6 チャネル

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Overview

CAT3636 は、1 ワイヤ・デジタル・インタフェースでプログラム可能な LED を最大 6 個駆動できる高効率分数ポンプです。1.33x 分数チャージ・ポンプ・モードによるデバイスの効率は、従来の 1.5x チャージ・ポンプに外付けキャパシタを追加しない場合より最大 10% 向上しています。固定スイッチング周波数で動作させることにより、値の小さい外付けセラミック・キャパシタを使用でき、低ノイズ入力リップルを低く抑えることができます。マルチ分数チャージ・ポンプでは、2.5 V ～ 5.5 V の広範な入力電圧をサポートします。EN/SET ロジック入力は、チップ・イネーブルとして、さらにはすべての LED の電流設定のための「1 線式」アドレス指定可能インタフェースとして機能します。2 つの LED の 3 つのグループは、0.25 mA 〜 32 mA の独立した LED 電流で構成できます。

  • LCD Display Backlight
  • Color RGB LEDs
  • Mobile Phones
  • Digital Still Cameras
  • High efficiency 1.33x charge pump
  • Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x
  • Drives up to 6 LEDs at 32 mA each
  • 1-wire EZDim™ LED current programming
  • Power efficiency up to 92%
  • Low noise input ripple in all modes
  • “Zero” current shutdown mode
  • Soft start and current limiting
  • Short circuit protection
  • Thermal shutdown protection

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

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ON Target

VI Max (V)

IO Max (mA)

LEDs in Series, Max #

LEDs in Parallel, Max #

Reference Price

CAT3636HV3-GT2

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Obsolete

CAD Model

Pb

A

H

P

TQFN-16

510AD

1

260

REEL

2000

N

5.5

192

1

6

Price N/A

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