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Smart LED driver for outdoor street lights using 6LoWPAN Mesh network

STEVAL-LLL006V1

Overview

The STEVAL-LLL006V1 board is designed to help you evaluate high power LED lighting solutions with comprehensive power management and wireless connectivity.

The board integrates an intelligent power conversion stage thanks to the HVLED001A LED lighting controller with various operating modes, sensing and protection mechanisms, and highly efficient switching based on the STP21N90K5 Power MOSFET. The board is able to convert a wide 90 - 300 V_AC input voltage range into a 60 - 110 V_DC output in constant current mode, with high power factor and low THD.
The on-board STM32L071KZ microcontroller is able to receive remote on, off and dimming commands via the embedded SPSGRFC sub-1 GHz transceiver module.
A data concentrator unit (DCU) and mobile Android application have been developed to help you explore the functionality of the evaluation board. The DCU consists of a NUCLEO-F401RE development platform, plus the X-NUCLEO-IDS01A4 for sub 1-GHz communication with the LED driver board and a X-NUCLEO-IDB05A2 board for Bluetooth communication with the mobile device.
The ST 6LoWPAN Smart Streetlight mobile application (available on Google Play store) collects lighting nodes represented by the microcontroller and RF module on the evaluation board in a 6LoWPAN mesh network.

Main features

Intelligent power conversion stage based on the HVLED001A high voltage LED driver:
- wide input voltage range: 90 – 300 V_AC
- constant current output: 60-110 V / 0.7 A, with ±5% current regulation
- high power factor > 0.97 and low THD <15% for entire line and load cycle in quasi resonant mode
- peak overall efficiency (including auxiliary supply) at maximum load > 89%
- various start-up, operating and low-power modes
- open circuit, short-circuit, undervoltage and overvoltage circuit protection
Digital and remote control section based on STM32 microcontroller:
- wireless connectivity with embedded sub-1 GHz transceiver
- can accept remote on, off and dimming commands
Five levels of analog dimming
Less than 0.5 W standby power consumption ensures compliance with EnergyStar norms
RoHS compliant
WEEE compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-08 20:45:48

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