STEVAL-LLL012V1 智能 LED 驅動器參考設計由電源板和連接板組成。[STEVAL-LLL012V1 圖片]電源板是單級 LED 驅動器，具有高功率因數 (HPF) 和低總諧波失真 (THD)，專為智能家居照明應用的 LED 電源規格量身定制。在初級側，HVLED001B 控制器管理 AC-DC HPF 反激式轉換器。初級側調節和光耦合器控制在芯片上獨立應用，兩者均利用精確調節和無負載條件下的極低待機功率。該轉換器提供最大 35 W 的功率輸出和 24 - 48 V 范圍內的 LED 電壓，恒定電流調節為 0.7 A。電源板可以為連接板（通過 J12 連接）和公共 GND（J12 引腳 4）提供 3.3 V 電源電壓（J12 引腳 1）。得益于嵌入式可編程 BlueNRG-M2SP，連接板可以管理啟用/禁用狀態（J12 引腳 3）和 PWM 調光（J12 引腳 2）信號。所有功能 35 W LED 驅動器，具有高功率因數 (HPF) 反激和恒定電流 (CC) 二次調節 使用 BLE 模塊的無線連接 ST BLE Mesh 移動應用程序支持 接受遠程開/關和 PWM 調光命令 (10 -100%) 0.7 A LED 電流 24 - 48 V LED 電壓 THD < 15% PF > 0.95（滿載時），適用于寬范圍輸入 效率 >90% 待機功耗 < 0.5 W
The STEVAL-LLL012V1 smart LED driver reference design is composed of a power board and a connectivity board.
[STEVAL-LLL012V1 IMAGE]
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.

All 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 < 0.5 W