STEVAL-LLL003V1: 7.5W, 130mA @ 85V Max, Non-Isolated


The STEVAL–LLL003V1 evaluation board is a constant current LED driver, based on non-isolated buck topology using VIPer0P. The board delivers 130 mA ± 2.5% at an output load of 15 – 21 white LEDs. The buck topology ensures a minimum number of components as well as higher efficiency when operating at high output voltage (60 V and above).

The application core is the new VIPer0P offline high voltage converter which smartly integrates an 800 V avalanche rugged power MOSFET with current-mode control. Thanks to the embedded E/A (EAGND) floating GND, the direct current regulation can be applied to the buck converter, improving the LED current accuracy.


Manufacturer STMicroelectronics
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Part Number 497-17663-ND
Eval Board Supplier STMicroelectronics
Eval Board Normally In Stock
AC Voltage Universal
Outputs and Type 1 Non-Isolated
Current Out 130 mA
Voltage Out (Max) 85 V
Efficiency @ Conditions >88%, 21 LEDs @ 175 ~ 265 VAC in
>87%, 21 LEDs @ 110 ~ 135 VAC in
Features Open Circuit Protection
Short Circuit Protection
Soft Start
Thermal Protection
Switching Frequency 60 kHz
Component Count + Extras 27 + 3
Design Author STMicroelectronics
Application / Target Market LED Signage
Lighting: LED Commercial Lighting
Lighting: LED Home Lighting
Voltage In 85 ~ 135 or 175 ~ 285 VAC
Power Factor - Not Given
Standard(s) EN55022 B conducted EMI
IEC 61000-4-2 (ESD)
IEC 61000-4-4 (Burst)
IEC 61000-4-5 (Surge)
Main I.C. Base Part VIPer0P
Date Created By Author 2017-09
Date Added To Library 2019-09

Eval Board

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Quantity Available: 10