Features

•

35 W LED driver with high power factor (HPF) flyback and constant current (CC)

secondary regulation

•

Wireless connectivity using BLE module

•

ST BLE Mesh mobile app support

•

Accepts remote on/off and PWM dimming commands (10 -100%)

•

0.7 A LED current

•

24 - 48 V LED voltage

•

THD < 15%

•

PF > 0.95 at full load for wide range input

•

Efficiency >90%

•

Standby consumption <0.3 W

Description

The STEVAL-LLL012V1 smart LED driver reference design is composed of a power

board and a connectivity board.

The power board is a single stage LED driver with high power factor (HPF) and low

total harmonic distortion (THD) tailored to LED power supply specifications for smart

home lighting applications.

On the primary side, the HVLED001B controller manages the AC-DC HPF flyback

converter. Primary side regulation and optocoupler control are applied independently

on the chip, both exploiting precise regulation and very low standby power under no

load conditions. The converter supplies a power output of 35 W maximum and a LED

voltage in the range of 24 - 48 V with a constant current regulation of 0.7 A.

The power board can provide 3.3 V supply voltage (J12 pin 1) to the connectivity

board (connected via J12) and to a common GND (J12 pin 4).

Thanks to the embedded programmable BlueNRG-M2SP, the connectivity board can

manage the enable/disable state (J12 pin 3) and the PWM dimming (J12 pin 2)

signals.

Product summary

Smart LED driver

with high power

factor using BLE

Mesh network

STEVAL-LLL012V1

Firmware for the

STEVAL-LLL012V1

STSW-LLL012FW

High power factor

flyback controller

HVLED001B

High voltage N-

channel Power

MOSFET designed

using MDmesh™

K5 technology

STD10LN80K5

Software solution

for connecting

multiple BLE

devices in Mesh

networks

STSW-BNRG-Mesh

Very low

power application

processor module

BlueNRG-M2SP

Applications

LED Lighting

Smart Home

Smart LED driver with high power factor using BLE Mesh network for indoor

lighting

STEVAL-LLL012V1

Data brief

DB4405 - Rev 2 - May 2021

For further information contact your local STMicroelectronics sales office.

www.st.com