ST Life.augmented

STEVAL-TLL011V1

Driver for up to 40 white LEDs for mid-sized LCD display backlight based on the STLD41
  • active Active

The STEVAL-TLL011V1 demonstration board demonstrates the performance of the STLD41, a boost converter that operates from 3.0 V to 21 V and which can provide an output voltage as high as 38 V.

It can drive up to 40 white LEDs connected in 4 strings of 10 LEDs in series. The total output current capability is 120 mA at an output voltage of 38 V.

Regulation is performed by the internal error amplifier which works with the feedback voltage from the sensing resistor.

The device can be turned ON/OFF by way of the logic signal connected to the EN pin.

The LEDs can be dimmed by applying a PWM signal to the PWM input.

pdf Please read
Errata Sheet
pdf データシート
Data Brief

Key Features

  • Boost DC-DC converter
  • Drives up to 40 LEDs (4 strings of 10) with a total current up to 120 mA
  • Input voltage range: 3.0 V to 21 V
  • Output current control
  • 1.8 MHz fixed frequency PWM control
  • PWM input for output current dimming with a frequency range of 25 kHz - 50 kHz
  • 2 A integrated switch
  • Overvoltage protection
  • Chip overtemperature detection and protection
  • Less than 1 μA standby current
  • Soft-start function
  • RoHS compliant

画像

デザイン・リソース

トップ

Technical Documentation

Product Specifications

Description Version Size
pdf
DB1654: Driver for up to 40 white LEDs for mid-sized LCD display backlight based on the STLD41
2.0 215 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
STEVAL-TLL011V1 gerber files
1.0.0 65 KB

Bill of Materials

Description Version Size
pdf
STEVAL-TLL011V1 BOM
1.0.0 9 KB

Schematic Pack

Description Version Size
pdf
STEVAL-TLL011V1 schematics
1.0.0 64 KB

サンプル& 購入

トップ
製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-TLL011V1ActiveSTLD41-121Distributor reported inventory date: 2014-09-23
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA10
P&SOrder NowASIA/PACIFIC11
DIGIKEYOrder NowWORLDWIDE41
Ecopack2-

(*)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。
Feedback Form
Customer Feedback