CATEGORIES

LED Drivers

Overview
Product selector
Solutions
Documentation
CAD Resources
Tools & Software
eDesignSuite

ST offers a large portfolio of energy-efficient DC/DC powered LED driver ICs for general lighting, display LED backlighting, automotive exterior and interior lighting, RGB and monochromatic LED drivers for signage and traffic signals.

Ideal for both parallel and series configurations, our LED driver portfolio enables high-efficiency, high-current accuracy, low-noise and small-size solutions. Topologies include buck regulator, boost regulator, offline LED drivers, linear LED supply, programmable multi-channels with high dimming capability.

Our LED driver portfolio includes:

edesign_widget_cl1854

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.
The STEVAL-ILL090V1 evaluation board based on the ALED8102SXTTR LED driver is available, the board implements two automotive scenarios:

  • an ambient light scenario, based on three RGB LEDs with configurable brightness and color;
  • a motorcycle rear light, with two orange LED strips (representing the arrow lights) placed side by side separated by a red LED circle (simulating the position/stop lights).

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
Solar Battery Charger

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