ST Life.augmented


5-channel (2 LEDs in series per channel) step-up white LED driver demonstration board based on the STLED25
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The STEVAL-TLL013V1 demonstration board was designed to demonstrate the performance of the STLED25, a fixed frequency, high-efficiency, boost DC-DC converter with five parallel high-side current sources.

The STLED25 is able to provide 125 mA of total current with a maximum voltage of 7.5 V on each channel.

Each current source supports single or dual LED connections. The output voltage of the step-up converter is automatically set at 100 mV above the highest voltage required on any driver to guarantee the proper operation of the linear current sources. The device implements a self-test feature to detect any failure of the LEDs and to disable the related channel.

The failure status is reset as soon the IC is disabled. This mode of failure detection allows the device to continue operating driver channels that are operating normally, while avoiding excessive power consumption or associated thermal issues.

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Errata Sheet
pdf データシート
Data Brief

Key Features

  • Operating input voltage range from 2.3 V to 5.5 V
  • ± 7.5% LED current accuracy
  • Two LEDs in series per channel
  • High-side current source
  • Up to 125 mA of total LED current
  • 86% efficiency at 100 mA
  • PWM dimming with automatic shutdown time window
  • 2.5 MHz switching frequency
  • RoHS compliant




Technical Documentation

Product Specifications

Description Version Size
DB1436: 5-channel (2 LEDs in series per channel) step-up white LED driver demonstration board based on the STLED25
1.1 98 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-TLL013V1 gerber files
1.0 21 KB

Bill of Materials

Description Version Size
1.0 72 KB

Schematic Pack

Description Version Size
STEVAL-TLL013V1 schematics
1.0 47 KB

サンプル& 購入

製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-TLL013V1ActiveSTLED25-69Distributor reported inventory date: 2016-02-09
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20

(*)ユニット当たりの推奨再販価格(米ドル建て)は、あくまで予算的な参考情報としてご利用下さい。現地通貨ベースでのお見積り、価格については 弊社セールスオフィス もしくは 販売代理店 にお問合せ下さい。
(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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