ホーム パワー マネージメント LED ドライバ RGB LED ドライバ

TLC5955

アクティブ

ドット補正機能と輝度制御機能と開路 / 短絡検出機能搭載、48 チャネル、16 ビット PWM LED ドライバ

製品詳細

Number of channels 48 LED current per channel (mA) 31.9 LED configuration Parallel, Series Topology Linear Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 1.531 Features Analog/PWM mixed dimming, Constant current, Current control, PWM control, Serial interface Iq (typ) (mA) 15 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 48 LED current per channel (mA) 31.9 LED configuration Parallel, Series Topology Linear Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 1.531 Features Analog/PWM mixed dimming, Constant current, Current control, PWM control, Serial interface Iq (typ) (mA) 15 Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (DCA) 56 113.4 mm² (14 mm × 8.1 mm) VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Maximum MC, DC, and BC Data:
    • 23.9 mA (VCC ≤ 3.6 V, MC = 5)
    • 31.9 mA (VCC > 3.6 V, MC = 7)
  • Grayscale (GS) Control:
    • 16-Bit (65,536 Steps) with Enhanced Spectrum or Conventional PWM
  • Maximum Current (MC) Control:
    • 3 Bits (8 Steps) with a 3-mA to 30-mA Range
    • 3 MC Sets for Each Color Group
  • Dot Correction (DC) Control:
    • 7 Bits (128 Steps) with a 26.2% to 100% Range
  • Global Brightness Control (BC):
    • 7 Bits (128 Steps) with a 10% to 100% Range
    • 3 BC Sets for Each Color Group
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±2% (typ), ±5% (max)
    • Device-to-Device: ±2% (typ), ±4% (max)
  • Data Transfer Rate: 25 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat
  • Display Timing Reset
  • Auto Data Refresh (GS and DC Only)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • UVLO Sets Default Data
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C
  • 48 Constant-Current Sink Output Channels
  • Sink Current Capability with Maximum MC, DC, and BC Data:
    • 23.9 mA (VCC ≤ 3.6 V, MC = 5)
    • 31.9 mA (VCC > 3.6 V, MC = 7)
  • Grayscale (GS) Control:
    • 16-Bit (65,536 Steps) with Enhanced Spectrum or Conventional PWM
  • Maximum Current (MC) Control:
    • 3 Bits (8 Steps) with a 3-mA to 30-mA Range
    • 3 MC Sets for Each Color Group
  • Dot Correction (DC) Control:
    • 7 Bits (128 Steps) with a 26.2% to 100% Range
  • Global Brightness Control (BC):
    • 7 Bits (128 Steps) with a 10% to 100% Range
    • 3 BC Sets for Each Color Group
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±2% (typ), ±5% (max)
    • Device-to-Device: ±2% (typ), ±4% (max)
  • Data Transfer Rate: 25 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat
  • Display Timing Reset
  • Auto Data Refresh (GS and DC Only)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • UVLO Sets Default Data
  • Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C

The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.

The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.

The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.

The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.

ダウンロード 字幕付きのビデオを表示 ビデオ

お客様が関心を持ちそうな類似品

open-in-new 代替品と比較
比較対象デバイスと類似の機能。
LP5860 アクティブ 8 ビット アナログ調光と 8/16 ビット PWM 調光機能搭載、11 × 18 LED マトリクス ドライバ 11 × 18 LED matrix driver

技術資料

結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
3 をすべて表示
上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート TLC5955 48-Channel, 16-Bit, PWM LED Driver with DC, BC, LED Open-Short Detection, and Internal Current Setting データシート PDF | HTML 2014/03/07
ホワイト・ペーパー Common LED Functions and LED Driver Design Considerations.. 英語版 2020/09/21
技術記事 Improve the user experience with an LED ring PDF | HTML 2017/11/09

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

シミュレーション・モデル

TLC5955 IBIS Model

SBVM398.ZIP (36 KB) - IBIS モデル
サポート対象の製品とハードウェア
パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
HTSSOP (DCA) 56 Ultra Librarian
VQFN (RTQ) 56 Ultra Librarian

購入と品質

推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​

ビデオ