STはエネルギー効率に優れたDC-DC電源LEDドライバICの幅広い製品ポートフォリオを用意し、一般照明、ディスプレイのLEDバックライト、自動車の外装および内装の照明に向けて提供しています。また、標識や交通信号機向けに、RGBおよび単色LEDドライバを提供しています。
STのLEDドライバの製品ポートフォリオは、並列構成と直列構成のいずれにも適しており、高い効率、高い電流精度、および低雑音の小型ソリューションを実現します。トポロジにはバック･レギュレータ、ブースト･レギュレータ、オフラインLEDドライバ、リニアLED電源、高度な明るさ調整機能を備えたプログラム可能なマルチチャネルなどが含まれます。
STのLEDドライバの製品ポートフォリオには、以下が含まれています。
注目ビデオ
Watch the ALED1262ZT video, an automotive-grade 12-Channel LED Driver for advanced rear lighting solutions
推奨コンテンツ
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
The ALED8102S is a low-voltage, 8 low-side channel LED driver. It guarantees up to 20 V output-driving capability and allows users to connect several LEDs in series. In the output stage, the 8 regulated current sources provide 5 to 100 mA constant current to drive the LEDs.
Housed in the power-efficient HTSSOP package, the device also features a thermal protection that forces the device in shutdown in case of over-current.
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
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Power Supply Design Tool
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations 
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 
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 
AC Switches Simulator
Select ratings and application waveforms Get junction temperature and blocking voltage graphs Search and sort suitable devices 
Rectifier Diodes Simulator
Select ratings and application waveforms Estimate power losses Search and sort suitable devices 
STPOWER Studio
Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties 
Twister Sim
Help select the right ViPOWER Automotive power device Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis Supports various PCB configurations 
TVS Simulator
Specify system ratings and surge waveform Search and sort suitable devices 
Active Filters
Handles multi-stage-designs and common topologies Returns circuit component values Provides gain, phase and group delay graphs Low Pass, High Pass and Band Pass 
Comparators
Handles most common configurations Returns circuit components values Provides I/O signal waveforms Inverting, Non Inverting, Window 
Low side Current Sensing
Returns circuit component values Provides current error graphs 
High side Current Sensing
Provides current error graphs. Help to select the right High side current sensing and shunt devices. 
NFC Inductance
Input geometry and substrate properties Get antenna impedance 
UHF Link Budget
Enter forward and reverse link characteristics The tool returns link budget estimate 
NFC Tuning Circuit
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets