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LED驱动器

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产品选择器
解决方案
文件
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eDesignSuite

针对普通照明、显示器LED背光、汽车外部和内部照明等应用,意法半导体可提供众多高效节能的DC/DC供电LED驱动器IC,而针对标牌和交通信号系统应用则可提供RGB和单色LED驱动器

它们适于并联和串联配置,我们的LED驱动器产品系列实现了高效、高电流精度、低噪声和小型解决方案。各种拓扑包括降压调节器、升压调节器、离线LED驱动器、线性LED电源,具有可编程多通道和高调光能力。

我们的LED驱动器产品包括:

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Programmable 12-channel RGB-LED Driver with high current accuracy

With patented features to prevent distracting artefacts in “color-chasing” or “deep breathing” LED animation effects, LED1202 enables smoother and more natural interactions with smart-home devices, wearable electronics, and small appliances.

The output current can be adjusted separately for each channel by 8-bit analog dimming control up to 20 mA per channel and 12-bit internal PWM dimming control. With 12 output channels, a single LED1202 can drive four RGB LEDs running up to eight programmable patterns and stored sequences. An innovative synchronization feature allows connecting up to eight LED1202 drivers to control larger LED arrays.

The STEVAL-LLL007V1 evaluation kit is available to support evaluation of the LED1202 and aids development of new products and lighting sequences.

All-in-one high-voltage LED-lighting control chip for efficient dimming, enhanced accuracy and fast start-up

The HVLED001B contains high-voltage startup and sensing circuitry that simplifies connection to the AC line. Its advanced features support multi-platform reuse and compliance with the latest lighting regulations, and include:

  • Very accurate line and load regulation over wide range to ensure constant output voltage or output current
  • Constant output voltage regulation, with no need of optocoupler, ensures voltage remains below recognized 60V safe limit, improving the application robustness
  • Frequency foldback for improved efficiency and regulation at light load with good efficiency at medium load
  • Accurate and smooth dimming
  • Power-conversion efficiency greater than 90%
  • No-load power consumption less than 100mW
  • Power factor greater than 0.9, Total Harmonic Distortion (THD) below 10%
  • Low EMI at light load and medium load
  • Built-in over-current, input over-voltage, brownout, and optocoupler failure protection
  • ST’s smart Auto-Reload Timer (ART) ensures latch-free protection for enhanced safety

New LED driver with direct switch control

ALED8102S是一款低压LED驱动器,有8个低侧通道。它保证最高20 V的输出驱动能力,允许用户串联多个LED。在输出级,8个稳压电流源可提供5至100 mA恒流,从而驱动LED。该器件采用高能效的HTSSOP封装,还具有热保护功能,在过电流情况下强制关闭器件。
此外还有基于ALED8102SXTTR LED驱动器的STEVAL-ILL090V1评估板,该板支持实现两种汽车场景

  • 环境照明场景,基于三个RGB LED,其亮度和色彩可配置;
  • 摩托车尾灯,两个橘黄色的LED条形灯(代表箭头灯)并排放置,再由一个红色的LED环形灯(模拟示廓灯/停车灯)加以分隔。

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Choose design tool:

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
DC/DC
AC/DC
太阳能电池充电器

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node