Driver for up to 6 white LEDs for display backlights based on the STLA02

The STEVAL-TLL010V1 demonstration board is based on the STLA02, a boost converter dedicated to powering and controlling the current of white LEDs in an LCD backlight. The device operates at a typical constant switching frequency of 2.3 MHz. It steps an input voltage ranging from 2.5 V to 18 V, up to 27 V. The output current is adjustable by the resistor RFB connected between the VOUTand FB pins. The STLA02 device contains high-side sensing to simplify the PCB layout in terms of LED connection.

The output current is dimmable by the PWM signal applied to the EN pin with minimum PWM frequency equal 100 Hz.

Key Features

  • Boost DC-DC converter
  • Drives up to 6 LEDs with a total current up to 20 mA
  • Output power capability up to 500 mW
  • Input voltage range 2.5 V to 18 V
  • Output current control
  • 2.3 MHz switching frequency
  • PWM input for the output current dimming with 300:1 dimming range
  • 350 mA integrated switch
  • Overvoltage protection
  • Chip overtemperature detection and protection
  • Soft-start implemented
  • RoHS compliant

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デザイン

技術文書

製品スペック
Description バージョン サイズ
DB1675 DB1675: Driver for up to 6 white LEDs for display backlights based on the STLA02 1.0 225 KB

ハードウェアリソース

Board Manufacturing Specifications
Description バージョン サイズ
STEVAL-TLL010V1 gerber files 1.0 13 KB
Bill of Materials
Description バージョン サイズ
STEVAL-TLL010V1 BOM 1.0 48 KB
Schematic Packs
Description バージョン サイズ
STEVAL-TLL010V1 schematics 1.0 20 KB

法務

ライセンス契約
Description バージョン サイズ
Evaluation products license agreement 1.0 125 KB
サポート & コミュニティ
関連アプリケーション

サンプル & 購入

製品型番 Core Product Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-TLL010V1 STLA02 Active 50.23 1 NEC EAR99 ITALY MORE INFO 直接購入 買い物かごに追加 DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
STEVAL-TLL010V1 アクティブCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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