STEVAL-LLL004V1: 500 mA @ 80V Max, 85 ~ 265V in


The STEVAL–LLL004V1 is a digitally controlled constant current LED driver. The PFC stage and the two DC-DC converters are designed to work in transition mode to optimize efficiency.

The LED driver can deliver 75 W output power. It can dim the LEDs down to 0.5% of the maximum brightness level through both analog and digital approaches. The operation is flicker free across the entire dimming range using either of the dimming techniques. The board features high efficiency, a power factor almost equal to one, and a low THD percentage across wide input voltage and load conditions, thanks to the high performance ST power products and the advanced algorithms running on the 32-bit STM32F0 microcontroller.


Manufacturer STMicroelectronics
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Part Number 497-18365-ND
Eval Board Supplier STMicroelectronics
Eval Board Normally In Stock
AC Voltage Universal
Outputs and Type 2 Non-Isolated
Current Out 500 mA
Voltage Out (Max) 80 V
Efficiency @ Conditions >87%, 135 ~ 265 VAC, 24 LED @ 500 mA
>85%, 110 ~ 265 VAC, 20 LED @ 500 mA
>82%, 85 ~ 265 VAC, 16 LED @ 500 mA
Features Dimming Control
Open Circuit Protection
Short Circuit Protection
Soft Start
Switching Frequency 20 ~ 100 kHz
Component Count + Extras 239 + 17
Design Author STMicroelectronics
Application / Target Market Lighting: Electronic Ballast
Lighting: LED Commercial Lighting
Lighting: LED Home Lighting
Voltage In 85 ~ 265 VAC
Power Factor >0.96 @ 85 ~ 265 VAC
Standard(s) EN55022 B conducted EMI
Main I.C. Base Part STD11N60M2-EP
Date Created By Author 2018-11
Date Added To Library 2019-02

Eval Board

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Quantity Available: 5